# Input, Save/Load, and Simulation: Post-load Generation, PaintTerrain, and Save/Load Restore

### Post-load Generation, PaintTerrain, and Save/Load Restore

The same brush strip is tighter now too:
  `0x004bc210` stores the selected ordinal and refreshes one scalar caption
  from table `0x00621e24`, `0x004bc260` exposes the cached world coordinate pair plus the
  currently selected scalar, and `0x004bc290` restyles the ordinal strip `0x0fa1..0x0fa7` plus
  the mapped mode strip `0x0faa..0x0faf` against the current mode dword `[0x006d0818+0x8c]`. The
  next unresolved layer is narrower and more semantic: the setup side now has one grounded
  owner, `world_run_post_load_generation_pipeline`, and its building-side branch is no longer just
  one opaque block. We now have a region family, a region-border overlay rebuild, a region-owned
  structure-demand and placement dispatcher, and a deeper per-region worker that computes category
  demand, subtracts existing coverage, and tries candidate placements. The category map is tighter
  too: category `0` falls back to `House`, category `2` is the year-gated weighted region-profile
  family that also feeds the localized `Industry Weightings` stats panel, and category `3` now
  reaches a separate pool-driven picker whose fallback label is `Commercial` but whose aligned
  player-facing stats bucket is `City Support`. The normalized region band is tighter too:
  `world_region_normalize_cached_structure_balance_scalars` `0x00422320` no longer just writes an
  anonymous cached preview band at `[region+0x2e2/+0x2e6/+0x2ea/+0x2ee]`. Current growth-report
  evidence now grounds `[region+0x2e2]` as the weighted-profit-margin scalar and `[region+0x2ee]`
  as the annual-density-adjust scalar later formatted as a percent in `Stats - City/Region`, with
  `[region+0x2e6/+0x2ea]` left as the intermediate normalized-delta and clamped companion slots
  beneath that final adjust term. The per-region prepass feeding that normalization is tighter too:
  `0x00420d40` clears `[region+0x306/+0x30a/+0x30e]`, walks the linked placed-structure chain from
  `[region+0x383]`, accumulates two local placed-structure metrics through `0x0040ca70` and
  `0x0040ca80`, and only for class-0 candidates also folds source field `[source+0x141]` through
  `0x0040cec0` into the third accumulator before tailing into the later scalar refresh. That tail
  helper `0x00420560` is tighter now too: on class-0 regions it revisits the same linked chain and
  folds a class-mix contribution into `[region+0x312]`, with one source-derived term for candidate
  class `0`, a separate branch keyed by `[candidate+0x78c]` and `[site+0x246]` for class `2`, one
  fixed increment for class `3`, and no current contribution from class `1`. One neighboring
  collection-side dispatcher is tighter now too: `0x00433b80` only runs when global mutation depth
  `0x0062be40` is back at zero and then conditionally fans into the optional refresh hooks
  `0x00481430`, `0x00413860`, `0x004b2a90`, and
  `route_entry_collection_run_optional_refresh_hooks_and_validate_world_cell_side_lists`
  `0x004931e0`. The periodic boundary
  side is narrower now too. `0x00422100`, reached only from
  `simulation_service_periodic_boundary_work` `0x0040a590`, first requires several live world
  state gates to stay clear, derives one year-sensitive random threshold from selected-year fields
  plus world width, then scans the region collection for eligible class-0 regions whose transient
  dwords `[region+0x276]` and `[region+0x302]` are both clear and which fail the city-connection
  peer probe `0x00420030(1,1,0,0)`. When the gate passes it picks one random eligible region,
  derives one small severity bucket from `[region+0x25e]`, stores the scaled amount back into
  `[region+0x276]`, and appends one queued `0x20`-byte record through `0x004337c0` with payload
  seed `0x005c87a8`, literal kind `7`, zero promotion-latch dword `[node+0x0c]`, the chosen region
  id at `[node+0x10]`, that amount at `[node+0x14]`, and sentinel tails `-1/-1` in
  `[node+0x18/+0x1c]`. That append helper is now grounded directly too: `0x004337c0` allocates one
  zeroed linked `0x20`-byte node, copies one string or payload seed into `[node+0x04..]`, stores
  the six fixed dwords into `[node+0x08]` through `[node+0x1c]`, and appends the finished node to
  the singly linked list rooted at `[state+0x66a6]`. The queued family is no longer one unnamed
  gameplay lane either. Local dispatch through `0x00437c00` now resolves kinds `0/4` as fixed
  custom-modal rows, kinds `1/2` as no-op success rows, kind `3` as the direct world-side two-arg
  branch through `0x004dc540`, kind `5` as the one-arg world-side branch through `0x004f29c0`,
  kind `6` as the route-entry-validated branch into `0x00436820`, kind `7` as the region-focused
  custom-modal owner `0x004c7520`, and kind `8` as the two-arg branch through `0x004f2d80`.
  `0x004c7520` is no longer opaque: it requires scenario latch `[0x006cec74+0x277]`, stores the
  queued region id in `0x006cfe80`, allocates one helper object into `0x006cfe88`, opens the
  callback-driven modal through `0x004c98a0` with callbacks `0x004c72f0` and `0x004c73c0`, and on
  affirmative result `0x3f2` resolves the selected region through `0x0062bae0` before recentering
  the live world through `0x00433900`. That also closes the periodic producer side: `0x00422100`
  is no longer just “some scaled region event,” it is the class-0 region picker that queues this
  specific region-focus modal record, with the scaled amount preserved alongside the queued region
  id for the later service family. So the periodic region-selection lane now ties directly into one
  specific queued kind instead of only a generic queue family. One neighboring owner is tighter now too: `0x004358d0` walks the
  same live region collection and services those pending amounts after linked-site refreshes. When a
  region's pending amount at `[region+0x276]` is live and the city-connection peer probes
  `0x00420030` and `0x00420280` can resolve one matching peer site plus linked company through
  `0x0047efe0`, it formats one localized notice from region name `[region+0x356]`, world scalar
  `[region+0x23a]`, and the pending amount, publishes that notice through `0x004554e0`, posts the
  amount into company stat slot `4` through `0x0042a080`, then clears `[region+0x276]` and stamps
  completion latch `[region+0x302] = 1`. When no peer-company branch is available and byte
  `[region+0x316]` is still clear, the same owner publishes one alternate one-shot notice from the
  same amount and region scalar before setting `[region+0x316]`. So the pending-region bonus lane
  is no longer just a queued setup artifact: it has a concrete later service owner and an explicit
  shell-facing fallback above the same queue family now too. `0x00438710` is the recurring queue
  service owner above `[world+0x66a6]` and `[world+0x66aa]`; the short dirty-mark path is tighter
  now as well, because it checks the per-node promotion-latch dword `[node+0x0c] == 1` rather than
  reusing the queue kind field. `0x00438840` is the tiny
  dispatch-or-fallback sibling: it forwards the currently active queue node at `[world+0x66aa]`
  into `simulation_dispatch_runtime_effect_queue_record_by_kind_into_shell_or_world_handlers`
  `0x00437c00`, or opens the fixed custom modal rooted at localized id `0x153` when no active
  node is staged.
  company-credit side effect. One neighboring narrow counter is bounded too: `0x00422850`
  counts class-0 regions that pass a second `0x00420030` peer-probe variant with fixed flags
  `(1,1,1)` plus one caller-supplied trailing dword, and current callers are the query/script
  dispatch at `0x0042f856` and the later region-stats formatter at
  `0x004d2088`. The
  remaining setup-side uncertainty has therefore narrowed
  again: the region seed and border-overlay pair clearly complete before the `Setting up Players and
  Companies...` banner is posted; `[0x006cec74+0x174]` now looks like the direct building-population
  gate; `[0x006cec74+0x178]` now looks like the direct seeding-burst gate and selected-year-adjust
  policy; and `[0x006cec74+0x68]` now aligns with editor-map mode because the same flag forces the
  `.gmp` family in the shell file coordinators while suppressing the later building and seeding
  branches and diverting the deeper region worker into alternate logic. One write side for that
  `[shell+0x178]` policy is now grounded too: inside `shell_dispatch_ui_command` `0x00464410`,
  command ids `0x9d26..0x9d28` store `command_id - 0x9d26` directly into `[0x006cec74+0x178]`,
  yielding live values `0`, `1`, and `2`. That means the later restore branch is no longer gated
  by an abstract hidden shell latch; at least one of its adjustment inputs is an explicit UI
  launch policy. The negative boundary is tighter now too: current local disassembly still does
  not show `world_entry_transition_and_runtime_bringup` `0x00443a50`,
  `shell_setup_load_selected_profile_bundle_into_payload_record` `0x00442400`, or
  `world_load_saved_runtime_state_bundle` `0x00446d40` republishing that dword from file-backed
  state; a direct full-function sweep on `0x00446d40` still turns up many references to shell root
  `0x006cec74`, but no direct `+0x178` operand. The write-side split is now concrete rather than
  provisional too: current full-binary xrefs still only ground direct stores to stage dword
  `0x00620e94` in the ordinary saved-profile loader `0x00442400` and package-save prelude
  `0x00444dd0 = 0x26ad`, while the direct store to `[0x006cec74+0x178]` stays in the interactive
  command dispatcher `0x00464410`. The `319` lane itself is no longer the
  open structural gap; it now clearly owns chairman-profile slot seeding, profile-record
  materialization, a shell editor surface over the same local record family, and a separate
  live-company presentation path through the company-list window. The later interior order of that
  same `319` lane is tighter now too: after the route-entry collection refresh on `0x006cfca8` it
  refreshes the auxiliary route-entry tracker collection `0x006cfcb4`, then runs
  `placed_structure_collection_refresh_local_runtime_records_and_position_scalars` `0x004133b0`,
  which first drains the queued local-runtime rebuild ids through collection `0x0062b2fc` and then
  sweeps the live placed-structure collection `0x0062b26c` for the later position-triplet side
  refresh,
  then a flagged world-grid cleanup sweep through the compact grid-flag query
  `0x00448af0` plus the neighboring local chunk-cell write helper `0x00533fe0`, and only after
  that the later route-entry post-pass at `0x00491c20`. The same `319` lane is tighter internally
  now too:
  the surrounding placed-structure collection side is no longer just the per-record loader family.
  `0x004131f0` now cleanly constructs and stream-loads the live placed-structure collection,
  `0x00413230` constructs the empty runtime pool, `0x00413280` stream-loads tagged placed-structure
  entries with progress publishing, one temporary per-entry shim through `0x0040c950/0x0040c970`,
  and one evenly distributed `0x00ccb9e8` progress step from the saved base scalar, `0x00413260`
  is the matching release-and-free owner, and
  `0x00413550` now clearly resolves one site id, re-enters `0x0040e080` to release local runtime
  and linked-site follow-on state, and only then unlinks the entry from the live collection. The
  adjacent helper strip is tighter too: `0x00413620` is the collection-wide linked-peer overlay
  refresh sweep above `0x0040d2d0`; `0x00413580` is the periodic quarter-subset route-style sweep
  that derives one four-way start bucket from scenario byte `[world+0x11]` and then touches every
  fourth live record; `0x00413660` and `0x004136e0` are the neighboring owner-color
  and scalar publish sweeps; `0x00413750` is the shared mode-`3/6` linked-site preview membership
  refresh owner; `0x00413860` is the collection-side center-cell roster sweep above `0x0040cd10`;
  `0x004138b0` is the route-link cleanup sweep keyed by one center-cell `u16` roster token;
  `0x004138f0` counts live placed structures whose cached candidate id `[site+0x3d0]` matches one
  caller-supplied structure id; `0x00413940` walks the same matching subset and accumulates source
  field `[source+0x141]` from `0x0040cec0` with a floor of `1`; `0x004139a0` counts entries whose
  linked peer passes the narrower station-or-transit gate `0x0040d230`; `0x00413a00/0x00413aa0`
  narrow that same linked-peer subset to candidate class `3` and `4`; and `0x00413b40` is the
  subtype-`4` companion counter whose last gate is the raw linked-instance candidate byte `0xb9`.
  That `0x00413940` sum is now the direct link-count scale factor consumed by `0x0041e7be` above
  the four cargo-summary banks.
  One neighboring year-side owner is tighter now too: `0x00435b50` is the shared year-threshold
  and structure-milestone news pass beneath periodic simulation and startup bring-up. It suppresses
  itself when the cached previous year still matches or scenario gate `[0x006cec78+0x46c38]` is
  live, then publishes fixed year notices for `1865/1895/1920/1958`, formatted numeric notices for
  `1850/1900/1950`, and later structure-milestone notices keyed by live counts of specific placed
  structures resolved through `0x00412af0` and counted through `0x004138f0`, appending the finished
  records into the existing fixed-record/news lanes at `0x006cea4c` and `0x004337c0` rather than
  through a separate hidden journal family.
  before that later world and shell reactivation tail, `world_entry_transition_and_runtime_bringup`
  runs two separate recipe-runtime rebuild moments rather than one monolithic import step. The
  earlier call at `0x00443ebc` fires immediately after the named candidate-availability collection
  at `[world+0x66b2]` has been restored from fixed `0x22`-byte rows and before the neighboring
  candidate filter/count rebuilds `0x00412c10/0x00412bd0` plus the year-derived follow-ons
  `0x00434130/0x00436af0`. The later call at `0x00444ac1` sits inside the explicit `0x197`
  checkpoint after `world_publish_shell_controller_progress_scalar_from_year_thresholds_or_selector_overrides`
  `0x004354a0` and the territory-side sweep `0x00487de0`, and only then falls through into the
  named-candidate availability preseed `0x00437737` plus the later candidate-filter refresh
  `0x00412c10`. The post-bundle status and runtime refresh phase around those checkpoints still
  posts progress ids `0x196` and `0x197` through `0x005193f0/0x00540120` with paired `0x004834e0`
  follow-ons, and refreshes the live event collection at `0x0062be18` through
  `scenario_event_collection_refresh_runtime_records_from_packed_state` `0x00433130`. That preseed
  lane is tighter now too: it walks the live candidate pool at `0x0062b268` in reverse, forces one
  override bit `0` whenever the candidate availability word `[candidate+0xba/+0xbb]` is already
  nonzero, derives the remaining zero-word subtype cases from the local `2 xor [candidate+0x32]`
  parity check, and only skips those subtype-derived rows when the copied stage counter from
  `0x00620e94` is nonzero before re-entering `0x00434f20` on the candidate stem at `[candidate+0x04]`. The event-side
  `.smp` bridge is
  tighter now too: the save-side companion `0x00433060` opens chunk `0x4e99`, writes version dword
  `0x3e9`, first walks the live event collection through
  `scenario_event_prepare_runtime_record_text_bands_for_packed_state_save` `0x0042da90`, emits the
  collection-side packed metadata through `0x00517d90`, then opens chunk `0x4e9a` and serializes
  each event through `scenario_event_serialize_runtime_record_into_packed_state` `0x00430d70`
  before closing with `0x4e9b`; the restore-side sibling `0x00433130` then re-enters
  `scenario_event_refresh_runtime_record_from_packed_state` `0x0042db20` on each live record
  during bring-up. The per-record split is narrower too: `0x0042da90` services the six fixed
  The surrounding tagged collection-load strip is explicit now too. Before that same late
  reactivation tail continues, `world_entry_transition_and_runtime_bringup` reloads the main route
  collection `0x006cfca8` through
  `route_entry_collection_refresh_records_from_tagged_bundle_and_reseed_tracker_sidecars`
  `0x00493be0`, the auxiliary route-entry tracker collection `0x006cfcb4` through
  `route_entry_tracker_collection_refresh_records_from_tagged_bundle` `0x004a41b0`,
  placed-structure local runtime records through `0x004133b0`,
  the world-manager family at `0x006ceb9c` through `0x00477780`, the geographic-label database at
  `0x006ada80` through `geographic_label_database_refresh_records_from_tagged_bundle` `0x00461580`,
  the placed-structure dynamic-side-buffer tagged lane on `0x006cec20` through
  `placed_structure_collection_refresh_dynamic_side_buffers_from_tagged_bundle` `0x00481210`, the
  linked-route-object collection at `0x0062ba84` through
  `linked_route_object_collection_refresh_records_from_tagged_bundle` `0x0041d3f0`, the
  city-database entry collection at `0x006cea50` through
  `city_database_entry_collection_refresh_records_from_tagged_bundle` `0x00474540`, the live region collection at `0x0062bae0` through
  `world_region_collection_refresh_records_from_tagged_bundle` `0x00421510`, the live territory
  collection at `0x006cfc9c` through `territory_collection_refresh_records_from_tagged_bundle`
  `0x00487c20`, and the support family at `0x0062b244` through
  `support_collection_refresh_records_from_tagged_bundle` `0x0040b5d0`.
  The matched save side is explicit too. Inside
  `map_bundle_open_reference_package_and_serialize_early_world_datasets` `0x00444dd0`, the same
  route collections are written back through
  `route_entry_collection_serialize_records_into_tagged_bundle` `0x00491c60` and
  `aux_route_entry_tracker_collection_serialize_records_into_tagged_bundle` `0x004a4240`. The
  tracker per-entry save callback
  `aux_route_entry_tracker_serialize_noop_per_entry_payload_stub` `0x00494ef0` is currently a bare
  `ret 4`, so that tracker lane persists collection-side metadata and live ids without additional
  per-entry payload.
  The adjacent route-link family at `0x006ada90` is tighter now too: current world-entry bring-up
  only refreshes its direct indexed-collection header or id band through `0x00518680`, and the
  later live endpoint or grid state is regenerated afterward by
  `placed_structure_route_link_collection_recompute_all_endpoint_pair_state` `0x004682c0` and the
  broader rebuild sibling `0x00468300` rather than by a separate tagged per-record payload lane.
  text-band families at `[record+0x0e0/+0x401/+0x4ca/+0x593/+0x65c/+0x725]`, while `0x00430d70`
  writes the standalone runtime condition-row chain plus the four grouped runtime-effect row chains
  into the packed stream. The recipe rebuild lane itself is
  tighter now too: `0x00435630` resolves both token lanes through the exact live cargo-name matcher
  `cargo_collection_find_entry_id_by_exact_name` `0x0041e9f0`, fills empty token strings from the
  first live cargo entry before that match, and in mode `3` keeps reseeding the primary lane from
  that same first live cargo name until the primary and subordinate strings no longer compare equal
  through `0x005a57cf`. The importer-side bridge is tighter now too: each of the twelve recipe
  books first clamps the shared production-cap float that precedes the five `0x30`-byte line
  records up to a fixed minimum `4.0`, then writes each book's active nonzero-mode line count into
  the paired runtime count lane beside the imported `0xbc` descriptor strip. The five runtime
  slots are zeroed and seeded with fixed year-window defaults before any nonzero-mode line is
  imported, and each nonzero line amount is normalized to at least `1.0` before the mode `1/3`
  direct primary half and mode `2/3` one-row subordinate half are populated. The matcher return
  value is explicit now too: `0x0041e9f0` returns one live cargo entry id or `0`, and the importer
  writes that value straight into `[desc+0x1c]` and `[desc+0x44]` without any post-match failure
  guard. The editor-side `Port/Warehouse Cargos` page is tighter in the same way: its constructor
  `0x004cf910` exact-matches the persisted `+0x08/+0x1c` token strings against visible live cargo
  names only to seed selector indices, leaves unmatched strings at the zero-selector default, and
  separately derives the bounded usage summaries `508/509` by scanning the live city-or-region
  collection for rows whose current recipe ordinal `[entry+0x2f2]` matches the selected book. The
  paired handler `0x004d0040` then writes the selected cargo names back into those token slots
  verbatim. That handler is tighter now too: `0x59d8` is the top-level shared production-cap field
  and writes `book+0x3ed` after clamping the parsed value to `<= 8`; `0x59d9` only opens the
  rename modal over the current `0x3c`-byte book-name span; `0x59da/0x59db` cycle the selected
  recipe book backward or forward modulo `12`; and `0x59de` commits the selected book ordinal into
  `0x006cffa4`. The five per-line write bands are now exact too: `0x5a0a..0x5a0e` write the mode
  dwords at `book+0x3f1+line*0x30`, `0x5a1e..0x5a22` copy one live cargo name into the supplied
  token lane at `book+0x3f9+line*0x30`, `0x5a32..0x5a36` copy one live cargo name into the
  demanded token lane at `book+0x40d+line*0x30`, and `0x5a50..0x5a54` write the per-line amount
  float to `book+0x3f5+line*0x30` after clamping the parsed value to `<= 6`.
  So the stronger current boundary is now explicit on both sides: there is still no special marker
  decode before import, and unmatched token strings simply survive in scenario state until
  `0x0041e9f0` returns cargo id `0`.
  Mode `2` copies the normalized line amount into `[desc+0x48]`, while mode `3` overwrites
  that same subordinate amount with literal `1.0` after the token-divergence loop succeeds.
  After the full twelve-book sweep the helper explicitly re-enters
  `structure_candidate_collection_rebuild_runtime_records_from_scenario_state` `0x00412d70` when
  the live candidate collection exists. That keeps the strongest current static split narrow and
  concrete: mode-zero demand rows can still preserve readable cargo-name text in the saved recipe
  books, but only the nonzero imported rows reach the live `0xbc` descriptor array. The remaining
  supply-marker gap is now narrower too: current local evidence shows no special decode path at
  all before exact-name resolution. The editor-side page only reflects selector ordinals when the
  persisted token strings already match visible live cargo names, the normal in-game editor path
  `0x004d0040` writes selected cargo names back into those token slots verbatim, and the importer
  itself writes the exact-match result ids straight into `[desc+0x1c]` and `[desc+0x44]`,
  defaulting failed matches to cargo id `0`. The reset side narrows that authorship boundary
  further too:
  `0x00436d10` only zero-fills the recipe books and reseeds their `# %1` name lane, so those
  marker-like token strings are not coming from the built-in reset template. A fresh direct-hit
  scan on the recipe-book root `0x0fe7` also failed to surface any new live writer beyond the
  already-grounded reset, save/load, and editor-panel families. The one suspicious later hit
  neighborhood around `0x00500c73/0x00500d3f` turns out not to be another recipe writer at all:
  it is a shell control-construction strip using localized ids `0x0fe6/0x0fe8/0x0fe9` as UI
  resource ids, not `[world+0x0fe7]` field accesses. Checked map/save pairs then preserve those raw
  marker payloads byte-for-byte. So the load/save ownership seam is closed at the current evidence
  level: within the local binary there is no surfaced non-editor author or hidden decode stage for
  those marker families before the saved recipe books are exact-matched back into live descriptor
  arrays.
  The first grounded consumer beneath that import bridge is tighter now too:
  `structure_candidate_query_cargo_runtime_summary_channels` `0x00412650` lazily stamps the current
  scenario year into `[candidate+0x788]`, rebuilds four banks across both mode banks `0/1`, and
  returns one direct primary-cargo scalar channel, one cap-share primary-cargo scalar
  channel, one nonzero-mode subrow channel, and one zero-mode cap-scaled subrow channel for a
  requested cargo id. The two primary-cargo banks index from `[desc+0x1c]`, while both subordinate
  row banks index from `[desc+0x44+row*0x1c]`; nonzero-mode descriptors only feed the nonzero-mode
  subrow bank, while mode-`0` descriptors either add their direct scalar to `[this+0x03a]` or, when
  subrows are present, add one cap-share scalar to `[this+0x0a4]` and one cap-scaled row
  contribution to `[this+0x178]`. That keeps the cargo-id-`0` boundary narrow and concrete too:
  if marker rows still fail `0x0041e9f0`, they will hit the first bank bucket inside `0x00412650`,
  but the broader steady-state caller layer already treats cargo id `0` as a fallback or sentinel
  request rather than a normal cargo lane: the candidate-service bitset owner loops from cargo id
  `1`, and the placed-structure sweep routes explicit cargo-id-`0` requests into the linked-site
  classification side instead of the ordinary cargo-reference helper. That keeps the local bridge
  closed at the current evidence level: marker rows can still arrive as opaque preserved scenario
  payload, but there is no remaining importer or consumer-side ownership seam to map here. The runtime descriptor
  construction is tighter in the same way: each imported `0xbc` slot is
  zeroed first, seeded with fixed year-window defaults `0x0708..0x270f`, then filled only for
  nonzero source-line modes; mode `2/3` writes the supplied token lane through `+0x08 -> +0x1c`
  plus the direct annual amount at `[desc+0x04]`, while mode `1/3` writes one subordinate-row
  demand half through `+0x30 -> +0x44` with `[desc+0x2c] = 1`, and production mode `3` forces that
  demand-row amount to `1.0` at `[desc+0x48]` instead of reusing the entered annual amount.
  The immediate helper strip under that bridge is tighter now too. `0x00411ee0` is no longer just
  a vague summary refresh: it clears the two compact cargo-id tables at `[candidate+0x79c]` and
  `[candidate+0x7a0]`, clears the per-cargo float band `[candidate+0xa1..+0xb8]`, fills one local
  `0x35`-cargo status scratch where `1` means referenced and `2` means currently year-active. The
  year window is narrower than the earlier shorthand too: status `2` only applies while
  `start_year <= current_year < end_year`, using live world year `[0x006cec78+0x0d]` or fallback
  year `0x709` when no world is present. The helper keeps that maximum status per remapped cargo id
  through `0x0062ba8c+0x9a`, and then compacts the
  `status>=1` and `status>=2` sets back into the two emitted cargo-id tables with counts
  `[candidate+0x7a4]` and `[candidate+0x7a8]`. The same scan publishes the stronger production-side
  split too: mode-`0` descriptor rows are cap-scaled by `[candidate+0x2a] / [desc+0x04]`, while
  nonzero-mode rows bypass that normalization and keep their direct row amount. Below that, `0x00411d50` is the narrow
  descriptor-pattern predicate that returns true only when every imported descriptor keeps mode `0`
  and at least one descriptor has no subordinate rows, while `0x00411da0`, `0x00411e10`, and
  `0x00411e50` are conservative fixed-table accessors over candidate slot `[candidate+0x798]`,
  exposing one copied name plus either a scalar pair or scalar triplet from the same fixed row in
  `0x005ed338..0x005edca4` rather than a separate loader family.
  The sibling post-import flag pass `0x00411ce0` is tighter in the same way: for subtype byte
  `[candidate+0x32] == 2`, `[candidate+0x790]` records whether any mode-`0` descriptor exists,
  while `[candidate+0x78c]` stays armed only when every mode-`0` descriptor carries at least one
  subordinate row, or when no mode-`0` descriptors exist at all.
  One later subphase is tighter now too: before the broad world-reactivation sweep it
  posts progress ids `0x32dc/0x3714/0x3715`,
  reloads one `0x108`-byte packed profile block through `0x00531150`, conditionally copies staged
  runtime-profile bytes back into `0x006cec7c` while the file-backed profile rehydrate latch
  `[profile+0x97]` is set, mirrors the grounded campaign/setup byte `[profile+0xc5]` and sandbox
  launch byte `[profile+0x82]` into world bytes `[world+0x66de]` and `[world+0x66f2]`, and
  restores the selected-year lane through a tighter two-stage calendar path than before. Current
  local disassembly now shows the raw saved lane at `[profile+0x77]` first feeding
  `calendar_pack_year_and_component_bytes_to_packed_tuple_dwords` `0x0051d3f0` with constant components
  `(month=1, day=1, subphase=0, tick=0)`, which writes the resulting Jan-1-style tuple dwords
  into `[world+0x05/+0x09]`. Only after that seed does the same lane enter one mode-sensitive
  adjustment branch: non-editor startup mode can decrement the lane by `1` or `3` depending on
  shell-state editor gate `[0x006cec74+0x68]`, shell-side selected-year-adjust policy
  `[0x006cec74+0x178]`, and the saved special-condition slot `[0x006cec78+0x4af7]`, and only that
  save/load bridge is narrower on the candidate side too: the constructor-side load owner
  `structure_candidate_collection_construct_and_stream_load_runtime_records` `0x004131f0`
  seeds global pool `0x0062b268` and immediately re-enters the broader collection importer
  `structure_candidate_collection_stream_load_rebuild_runtime_summaries_and_refresh_named_availability`
  `0x00412fb0`. That owner streams each packed candidate body back through
  `structure_candidate_stream_load_runtime_record_and_rebuild_cargo_state` `0x004120b0`, reruns the
  scenario-side recipe projection at `0x00412d70`, refreshes the stem-policy lane at `0x00412ab0`,
  rebuilds the collection aggregate subtotal band at `[pool+0x8c..+0x9c]`, repopulates the fixed
  name catalog at `0x0061dbc2/0x0061dc09` for non-subtype-`1` zero-availability candidates whose
  live ids stay within `0x6e`, and then reruns the named-availability pass at `0x00412c10` before
  returning. The surrounding bringup strip is explicit now too: the world-entry load branch passes
  through one bare placeholder `structure_candidate_post_collection_construct_noop_placeholder`
  `0x00411d90` between constructing `0x0062b268` and allocating the auxiliary candidate pool at
  `0x0062b2fc`, so that callsite is no longer an unmapped hole in the candidate-side loader path.
  The same load strip is tighter now too: `0x00412ab0` is the pure stem-policy sweep
  that refreshes candidate dword `[+0xbc]` from defaults `0x1869f/3/4` plus the fixed override
  table at `0x005edca8..0x005edd20`, with the non-default `3/4` branches driven directly by
  post-import flag `[candidate+0x78c]` and subtype byte `[candidate+0x32]`. The per-record loader
  `0x004120b0` now clearly reads the fixed header fields first, allocates the descriptor strip as
  `count*0xbc + 1`, zeroes every imported `0xbc` descriptor slot before import, resolves primary
  mode-`0` cargo names from `+0x08 -> +0x1c` and subordinate row cargo names from `+0x30 -> +0x44`,
  clamps descriptor start year `[desc+0x20]` upward to the resolved cargo availability floor
  `[cargo+0x21]`, and only then reruns `0x00411ee0` plus `0x00411ce0`. Its version gates are
  explicit too: bundles before `0x3ed` omit `[candidate+0x3b..+0xbb]`, bundles before `0x3f2`
  keep the narrow `0x02`-byte form of `[candidate+0xc0]`, nonzero `[candidate+0x4b]` forces
  `[candidate+0x47] = 1.0` and rescales `[candidate+0x43]` to at least `0x1388`, and the later
  stem-index resolution first checks two built-in alias stems before the full fixed row table at
  `0x005ed338..0x005edca4`. The neighboring placed-structure side
  is bounded too: global pool `0x0062b26c` comes from
  `placed_structure_collection_construct_empty_runtime_pool` `0x00413230`, while the paired tagged
  collection owners `0x00413280` and `0x00413440` now own the broader placed-structure stream
  load/save path around tags `0x36b1/0x36b2/0x36b3` and the per-entry virtual load/save slots
  `+0x40/+0x44`. The adjacent auxiliary or source-record side is tighter now too: global
  `0x0062b2fc` comes from
  `aux_candidate_collection_construct_seed_globals_and_helper_bands_then_import_records`
  `0x0041aa50`, which seeds constructor globals `0x0062b2f0/0x0062b2f4/0x0062b2f8`, initializes
  the collection configuration, allocates the three owned helper bands at `[this+0x88/+0x8c/+0x90]`
  through `0x0041a990`, and then tails into the already-grounded tagged import owner
  `0x004196c0` plus the later rebank-or-clone refresh `0x00419230`.
  adjusted lane then feeds
  `calendar_pack_unpacked_components_to_absolute_counter` `0x0051d390` before `world_set_selected_year_and_refresh_calendar_presentation_state`
  `0x00409e80` stores the final absolute counter into `[world+0x15]` and refreshes
  `[world+0x0d/+0x11]`. That means the restore no longer reads as a direct
  `[profile+0x77] -> [world+0x15]` copy; the raw lane seeds the tuple immediately, but the final
  absolute-counter restore still depends on live shell/startup context. That dependency is tighter
  now too: current local evidence shows `[shell+0x178] == 1` decrementing the restored lane by
  `1`, `[shell+0x178] == 2` subtracting `3`, and otherwise a nonzero
  `[0x006cec78+0x4af7]` supplying the fallback `-1` branch. That field is no longer unresolved:
  current local disassembly now shows `0x00436d10` bulk-zeroing the dword table rooted at
  `[startup+0x4a7f]` through `rep stos`, which includes `+0x4af7`, while the editor-side special
  conditions owner at `0x004cb2b0/0x004cb8e0` counts and commits that same 49-entry table from the
  static rule descriptors at `0x005f3ab0`. The `.smp` save or restore family now grounds that live
  band directly too: `world_runtime_serialize_smp_bundle` `0x00446240` writes `49` dwords from
  `[world+0x4a7f..+0x4b3f]` plus one trailing scalar at `[world+0x4b43]`, and
  `world_load_saved_runtime_state_bundle` `0x00446d40` restores the same fixed `0xc8`-byte band
  symmetrically. The surrounding `.smp` lane is tighter too: at version `>= 0x3f1` the save path
  also writes the late setup-preview payload block at `[world+0x66be]` through chunk ids
  `0x2ee0/0x2ee1`, and the restore path reads that same pair back while older bundles clear the
  compatibility tail at `[world+0x6987]`; the shared helper `0x00441ec0` inside that sidecar
  family is tighter now too, but the save split is explicit now: the package-save branch at
  `0x00444f42/0x00444f47` calls `0x00442ba0` and then immediately re-enters `0x00441ec0`, while
  the `.smp` serializer branch at `0x00446312` instead calls `0x00442ba0` and then emits `0x2ee0`,
  writes the full `0x403c2` payload directly through `0x00531030`, and closes `0x2ee1` itself.
  `0x00441ec0` therefore belongs to the companion-image or staged-object sidecar transport strip,
  not to the ordinary `.smp` slot-table write path. The restore-side boundary is narrower than that
  file format now too: current local evidence still does not show either `0x00441ec0` or the
  `.smp` restore path inside `0x00446d40` writing that restored leading dword back into
  `0x00620e94`, and the same negative read currently applies to shell dword
  `[0x006cec74+0x178]`: the load/restore family consumes it for selected-year and seeding
  decisions, but the grounded writer is still the interactive command path in `0x00464410`
  rather than a file-backed restore. That stage-versus-policy split is explicit on the consumer
  side now too: `0x00436d10` uses `[0x006cec74+0x178]` only for the `-1` or `-3` selected-year
  adjustment branch after `[profile+0x77]` seeds the Jan-1 tuple, `0x004384d0` only uses the same
  shell dword to gate the later economy burst, `0x00437b20` derives its loop count from that shell
  dword before the special-condition override at `[world+0x4af7]`, while the save-backed stage
  dword `0x00620e94` stays on the separate threshold and candidate-preseed side through
  `0x00437737` and `0x00444dc5`. The save-side exporter `0x00442ba0` also shows the
  concrete shape of that block by copying one `0x403c2`-byte payload record, forcing validity byte
  `+0x00 = 1`, patching current world dimensions into `+0x01/+0x05`, mirroring shell bytes into
  `+0x09..+0x0b`, and normalizing the embedded `0x100 x 0x100` preview pixels at `+0x03c2`. That
  byte trio is tighter now too: current local disassembly grounds `+0x09/+0x0a` as direct mirrors
  of shell-controlled sidecar dwords `[0x006d4024+0x11471a/+0x11471e]`, while `+0x0b` is the low
  byte of shared dword `0x0062bec4`, which the package-save coordinator seeds from the sibling
  selector pair `[0x006d4024+0x11472a/+0x11472e]` before export. The shell-side provenance is
  tighter in the same way: the display-runtime defaults path around `0x0051ee48..0x0051ee85`
  initializes those four dwords together, and the broader
  `shell_settings_window_handle_message_dispatch_and_persist_display_runtime_sidecar_family`
  `0x00464c80` later owns the direct toggle strip for controls `0xe101..0xe104`, including the
  grounded implication rules `!0x11471e -> clear 0x11472a` and `(0x11472a || 0x11472e) -> set 0x11471e`.
  The two
  later sidecar gates are therefore tied
  back into that copied layout directly: package-save reads `[world+0x66c8]` and `[world+0x66c9]`,
  so the exported payload bytes `+0x0a` and `+0x0b` are the same companion-image and
  companion-payload gates in the live world block. The producer boundary is tighter now too:
  current local xrefs still do not show standalone byte-local writers for `[world+0x66c8/+0x66c9]`,
  but the same search now shows that they are not orphan fields either. The ordinary producer is
  the wider payload exporter chain itself: `0x00464c80` toggles the shell-side source dwords,
  `0x00445de0` reseeds selector dword `0x0062bec4`, and `0x00442ba0` copies those values into
  payload bytes `+0x0a/+0x0b`. The live world bytes are then written only by the bulk
  `[world+0x66be]` payload-copy lanes, namely the `.smp` restore path `0x00446d40` and the
  multiplayer selector mirror `0x0046cf40`, both of which copy the full setup-preview payload
  block containing those two bytes.
  companion-payload sidecar gates inside the broader `0x66be` block.
  Both sides also preserve the same twelve `0x4e1` recipe books at
  `[world+0x0fe7]` as one exact `cap dword + 0x3d-byte header + five repeated line tuples`
  structure, where each repeated `0x30`-byte line is serialized field-by-field as mode dword
  `+0x00`, annual amount float `+0x04`, supplied-token window `+0x08`, and demanded-token window
  `+0x1c` before the wider world-cell loops continue. One
  serializer-side negative boundary is explicit now too: after the save path emits the six-dword
  economic tuning band at `[world+0x0be2..+0x0bf6]`, it spends its next large loops on per-cell
  world-grid, overlay-mask, sidecar-plane, and secondary-raster bit serialization and only then
  jumps directly to the recipe-book root at `[world+0x0fe7]`. So the later pre-recipe plateau is a
  real save-neighbor family, but current local evidence no longer supports treating it as one
  contiguous `.smp` serializer-owned slab beyond that leading six-dword tuning band. Slot `30`
  in that table is localized pair `3722/3723`
  `Disable Cargo Economy`, so `+0x4af7` now reads as the live copy of that saved scenario rule,
  not a startup-runtime-only mystery latch. The neighboring fixed reads line up with the same rule
  cluster too: `+0x4aef` is slot `28` `Completely Disable Money-Related Things`, `+0x4af3` is slot
  `29` `Use Bio-Accelerator Cars`, `+0x4afb` is slot `31` `Use Wartime Cargos`, `+0x4aff` is slot
  `32` `Disable Train Crashes`, `+0x4b03` is slot `33` `Disable Train Crashes AND Breakdowns`, and
  `+0x4b07` is slot `34` `AI Ignore Territories At Startup`. The remaining restore-side dependency
  is now concrete rather than mysterious: the year adjustment still depends on live shell policy
  `[shell+0x178]`, but that policy already has grounded UI writers and the `+0x4af7` input itself
  is save-derived scenario rule data rather than something that requires runtime tracing to
  discover. Its read-side family is no longer isolated to the selected-year
  restore either: it also shapes the chunk size in
  `simulation_run_chunked_fast_forward_burst` `0x00437b20` and appears in candidate/local-service
  selection and station-detail-side scoring branches around `0x0047f910`, `0x00410d87`, and
  `0x005069c6`, which now makes this whole slot cluster look like broader runtime consumers of
  scenario special conditions rather than one startup-only mode enum. That startup-side consumer
  split is tighter now too: inside the localized `Computing Transportation and Pricing...` bring-up
  lane, `world_preseed_named_candidate_availability_records_from_live_pool` `0x00437737` only runs
  before global stage counter `0x00620e94` reaches `0x26ad`, reverse-walks the live candidate pool,
  and seeds the scenario-side named availability table through `0x00434f20` with one override bit
  derived directly from current live candidate state. Any nonzero availability pair
  `[candidate+0xba/+0xbb]` forces that upsert with override bit `0`; otherwise the zero-availability
  path derives its bit from subtype parity on `[candidate+0x32]` through the local `2 xor subtype`
  branch and only skips those subtype-driven cases when the copied stage counter is already nonzero.
  The same startup strip then flows into `world_seed_default_chairman_profile_slots` `0x004377a0`,
  which compacts the 16 staged chairman slot records at `[world+0x69d8]`, writes the first-pass
  selector bytes into `[profile+0x87+i]`, allocates one fresh persona-record id for each nonzero
  selector, and only after that materializes the named-profile rows through `0x00476140`. The
  neighboring materializer `world_build_chairman_profile_slot_records` `0x00437220` is tighter now
  too: it first rebuilds one local `0x29`-byte occupied-persona mask from the two `0x48`-byte
  staging records rooted at `[world+0x69db]`, optionally waits on the multiplayer preview owner at
  `0x006cd8d8`, then resolves selector `0` through the first unused persona ordinal in
  `[world+0x6987]` while selectors `<0x64` map to `selector-1` and selectors `0x64+` map to the
  later-opponent range. That same pass copies the staged tuning dword from `[slot+0x04]` into
  `[profile+0x154/+0x158]`, can clear or set `[profile+0x293]` on the multiplayer-preview side
  path, and finally seeds `[world+0x25]` plus `[world+0x21]` from the resolved first profile row.
  So the save-derived special-condition band no longer sits beside anonymous startup glue: the
  bring-up path now has one concrete candidate-availability mirror at `0x00437737`, one concrete
  chairman-slot selector seeding pass at `0x004377a0`, one concrete chairman-profile materializer
  at `0x00437220`, and then the economy burst `0x00437b20`, whose own loop count is now tighter
  than before because a nonzero `[world+0x4af7]` forces the chunk count to literal `0x150` instead
  of leaving the shell-side `[0x006cec74+0x178]` count in control. One file-side anchor is now tighter too: the checked
  classic and 1.05 `gmp/gms/gmx` corpus does expose the same aligned
  `0x0d64..0x0e2c` `50`-dword band as the grounded `.smp` runtime save or restore copy into
  `[world+0x4a7f..+0x4b43]`, but most checked file families only populate a sparse subset of that
  band. The first `36` dwords still behave like the older inferred fixed rule matrix with hidden
  slot `35` fixed to sentinel value `1`, while the trailing `13` unlabeled rule lanes plus one
  scalar vary much more selectively by file family. Current local corpus scans make that split
  concrete: the grounded 1.05 scenario-save family (`p.gms`, `q.gms`) stably lights lanes
  `35, 37, 39, 44, 45, 46, 47, 48`; the base 1.05 save family (`Autosave.gms`, `nom.gms`) only
  shares lane `35` stably and otherwise varies sparsely through `42`, `45`, and `47`; the checked
  grounded 1.05 maps, the lone 1.05 alt save, and the visible sandbox-family `.gmx` files keep
  only the sentinel lane `35` nonzero. So the current loader boundary is narrower than before: the
  `.smp` path still gives a grounded direct runtime-band restore, and checked `gmp/gms/gmx` files
  now show a partially populated projection of that same aligned band rather than a wholly separate
  fixed record family. The overlap against the later scalar window is now explicit too: trailing
  band indices `36..49` are byte-identical with post-window offsets `0x00..0x34`, so every nonzero
  lane in that prefix of the post-sentinel scalar window is also a nonzero lane in the aligned
  runtime-rule band. That means the real “other fields” boundary inside the post-sentinel window
  starts only at `0x0e2c`: `0x0df4..0x0e2c` is the aligned-band overlap prefix, while
  `0x0e2c..0x0f30` is the later tail that still looks like save-side scalar state. Local corpus
  scans now make that tail split more specific. The base 1.05 save family
  (`Autosave.gms`, `nom.gms`) shares a stable tail subset at relative offsets
  `0xb4`, `0xc0`, `0xe0`, `0xfc`, and `0x100`, with additional per-file lanes around them. The
  1.05 scenario-save family (`p.gms`, `q.gms`) has a much denser stable tail covering
  `0x08`, `0x0c`, `0x10`, `0x14`, `0x20`, `0x24`, `0x28`, `0x30`, `0x34`, `0x3c`, `0x5c`,
  `0x6c`, `0xa0`, `0xa8`, `0xbc`, `0xc0`, `0xc4`, `0xc8`, `0xcc`, `0xdc`, `0xe0`, `0xe4`,
  `0xe8`, `0xf4`, `0xf8`, and `0xfc`; those values still differ per save, but the occupancy is
  stable. The lone 1.05 alt save (`g.gms`) only lights `0x20`, `0x34`, `0xf0`, and `0xf4`.
  Grounded map families and classic saves keep the tail zeroed, while the only current map-side
  outlier remains `Tutorial_2.gmp` under the broad unknown map-family bucket. The immediately
  following fixed file window at `0x0df4..0x0f30` is now bounded separately as well: checked maps
  and classic saves leave that whole post-sentinel band zeroed,
  while checked 1.05 saves carry sparse nonzero dwords there, many of which decode cleanly as
  normal little-endian `f32` values. That makes the adjacent band look like a 1.05 save-only
  runtime band rather than scenario-static payload. So the local static seam there is closed: it
  is runtime-save state, now carried conservatively as the 1.05-only late scalar tail beneath the
  aligned runtime-rule base rather than an unnamed ownership gap.
  One numeric alignment inside that band is now exact too: the tail start `0x0e2c` is the same
  relative distance from the aligned runtime-rule base `0x0d64` as live object offset `+0x4b47`
  is from grounded world-rule base `[world+0x4a7f]`, so the bounded tail window
  `0x0e2c..0x0f30` is offset-aligned with live bytes `[world+0x4b47..+0x4c4b]`. The first
  grounded live field at that boundary is no longer anonymous.
  `world_set_outcome_mode_and_copy_cheat_win_or_loss_status_text` `0x004367c0` sets one outcome
  mode in `[world+0x4a73]`, zeros `[world+0x4d]`, snapshots the selected-year lane to
  `[world+0x4c88]`, and then copies localized id `2923` `You lose.` or `2924`
  `You win, cheater...` into `[world+0x4b47]`; `0x00472dd0` formats localized id `3918`
  `%1 has won the game!` with one live profile name and writes that string into the same
  destination; and one compact runtime-effect
  branch inside `world_apply_compact_runtime_effect_record_to_resolved_targets` `0x00431b20` resets
  the same destination to the fixed placeholder token at `0x005c87a8`. That gives a grounded live
  owner above the latch too: `simulation_service_world_outcome_mode_prompt_and_transition_effects`
  `0x00436350` is the frame-serviced consumer of `[world+0x4a73]`, stamping completion latch
  `[world+0x4a77]`, driving the outcome-mode prompt rooted at localized id `0x169`, and triggering
  the world-side transition paths around `0x482150` while leaving `[world+0x4b47]` as the current
  outcome-status payload source. That gives a grounded live
  interpretation for the start of the tail: `[world+0x4b47]` is the start of a victory or outcome
  status-text buffer, not a float lane. The same evidence also gives a useful caution: those live
  helpers copy up to `0x12c` bytes into `[world+0x4b47..+0x4c73]`, so the current bounded file-tail
  window `0x0e2c..0x0f30` cuts through the first `0x104` bytes of a grounded text field rather
  than ending on a clean live-field boundary. One small continuation probe now tightens that edge:
  the remaining file window `0x0f30..0x0f58` is exactly the last `0x28` bytes needed to reach the
  clean live-field boundary at `[world+0x4c73]`, and checked 1.05 saves still carry sparse nonzero
  bytes in that continuation window rather than a trailing text-looking suffix. Checked 1.05 save
  bytes in the aligned region therefore still do not resemble preserved text; they stay mostly zero
  at the beginning and many nonzero lanes decode as ordinary `f32` values. So the safer current
  read is no longer “maybe a preserved text buffer.” This `0x0e2c..0x0f58` tail is an
  offset-aligned save-side runtime band that overlaps the live outcome-text region in memory but is
  not serialized as the raw `[world+0x4b47]` text payload. The current nonzero save-side content
  continues right up to the first clean field edge at `0x0f58`, after which the next exact grounded
  fields switch to byte and dword lanes with independent semantics. The next
  exact grounded fields after that edge are byte lanes, not restored dwords: `0x0f59` maps to
  `[world+0x4c74]` `Auto-Show Grade During Track Lay`, `0x0f5d` maps to `[world+0x4c78]`
  `Starting Building Density Level`, `0x0f61` maps to `[world+0x4c7c]` `Building Density Growth`,
  `0x0f65` maps to grounded dword `[world+0x4c80]` `leftover simulation time accumulator`, and
  `0x0f6d` maps to byte `[world+0x4c88]` `selected-year lane snapshot`. The write-side owner strip
  for the two building-density fields is explicit now too: the editor page
  `0x004ca910/0x004cb9f0` still owns the ordinary three-state UI path, but the tiny helper family
  `0x004cba34/0x004cba43/0x004cba56/0x004cba69/0x004cba78` also gives direct and fixed-preset
  writes into `[world+0x4c78]` and `[world+0x4c7c]`, with hard-wired low/high helpers for the same
  saved density modes. The selected-year snapshot lane is narrower now too: both
  `world_set_outcome_mode_and_copy_cheat_win_or_loss_status_text` `0x004367c0` and the nonzero
  outcome branch inside `world_apply_compact_runtime_effect_record_to_resolved_targets`
  `0x00431b20` copy current absolute calendar counter `[world+0x15]` into `[world+0x4c88]`, and
  the periodic year-step branch at `0x0040a280` later compares the absolute delta between those two
  lanes against one fixed threshold before it reasserts world flag `[world+0x4d]`. The next later grounded
  field after that is no longer best read as a dword either: `0x0f71` is the first byte of the
  cheat-toggled scenario-lock trio rooted at `[world+0x4c8c..+0x4c8e]`, not the start of one
  independently grounded 4-byte scalar. Current runtime-side evidence only gives one narrower
  consumer inside that trio: `[world+0x4c8e]` is the crash-side global gate already checked by
  `train_trigger_crash_state_effects_and_optional_owner_notifications` `0x004ad7a0`, while
  `0x00437d70` still bounds all three bytes together as cheat-toggled scenario state. The
  frame-side follow-on above the outcome
  prompt is grounded now too: after `0x00436350` stamps `[world+0x4a77]`, internal branch
  `0x0043963d` keeps running only while `[world+0x4a7b]` still matches the current step-local
  marker, then services the queued runtime-effect record family rooted at `[world+0x66a6]`
  through `0x00438710`, conditionally opens `Overview.win` through `0x004f3a10` when the preview
  fixed-record collection at `0x006cea4c` still has one admissible entry, and conditionally opens
  `LoadScreen.win` page `0` through `0x004e4ee0` when shell latch `0x006d4000` is clear and
  world flag `[world+0x4d]` is still nonzero. The same branch also conditionally toggles pause or
  resume through `0x00437a60` when no live multiplayer session object is present at `0x006cd8d8`.
  That splits the outcome prompt owner `0x00436350` cleanly from the later post-transition
  follow-on strip instead of leaving both behaviors folded into one unnamed frame tail. That means
  the simple 4-byte file-lane model
  stops matching grounded live field boundaries immediately after the text-buffer edge: the post-
  `0x0f58` file bytes are still offset-correlated to live state, but they are no longer naturally
  dword-aligned with the next grounded object fields. The new byte-neighborhood probe makes the
  mismatch more concrete. In checked 1.05 scenario saves, the exact grounded byte offsets
  themselves do not look like clean selector values: `p.gms` carries `0x33` at `0x0f5d` and `0x8c`
  at `0x0f6d`, while `q.gms` carries `0xcc` and `0xba` at those same offsets. The only clean
  float-looking starts in that neighborhood instead appear one byte earlier, at `0x0f5c` and
  `0x0f6c`: `p.gms` decodes those as roughly `7.6` and `6.0172`, while `q.gms` decodes them as
  roughly `23.6` and `44.6824`. That tightens the current read further: the checked save bytes
  remain offset-correlated to the live `[world+0x4c74..+0x4c8c]` neighborhood, but they are still
  not a validated byte-for-byte mirror of the exact live field layout. Local
  A second byte-oriented neighborhood immediately after that now has the same kind of split rather
  than a clean restored-field mirror. The earlier grounded anchors in that band all stay zero in
  the checked 1.05 saves: exact file offset `0x0f87` maps to selected-year bucket companion scalar
  `[world+0x4ca2]`, while `0x0f93` and `0x0f97` map to the two startup-owned dwords
  `[world+0x4cae]` and `[world+0x4cb2]`, and the local corpus leaves all three exact dword starts
  zeroed. Those two later dwords are now tight enough in lifecycle to carry conservatively as
  startup-dispatch companion dwords inside the reset-owned late save-visible cluster: the
  already-grounded startup-runtime pre-dispatch helper
  `world_runtime_reset_startup_dispatch_state_bands` `0x004336d0` clears both before
  `shell_active_mode_run_profile_startup_and_load_dispatch` `0x00438890`, the broader
  scenario-state reset owner `0x00436d10` clears them again with the rest of the late save-visible
  cluster, and the post-fast-forward selected-year tail around `0x00437120` clears them one more
  time alongside the shell presenter cache band `[0x006d4024+0x11425a..+0x114276]`. Local static
  evidence still does not show any non-clear readers or nonzero writers for `[world+0x4cae]` or
  `[world+0x4cb2]`, so this pair is closed at the current evidence level as a reset-owned
  structural boundary rather than another active policy or simulation seam. The same is true for
  the later exact byte-owned policy lanes: file offsets `0x0f78`,
  `0x0f7c`, `0x0f7d`, and `0x0f7e` map cleanly to grounded byte fields `[world+0x4c93]` and
  `[world+0x4c97..+0x4c99]`: the linked-site removal follow-on gate plus the three editor
  locomotives-page policy bytes `All Steam Locos Avail.`, `All Diesel Locos Avail.`, and `All
  Electric Locos Avail.`. In the checked 1.05 save corpus those four exact byte lanes all stay
  `0`, which is at least structurally clean. The later grounded dword fields in the same
  neighborhood are less direct again. Exact file offset `0x0f9f` maps to `[world+0x4cba]` (the
  station-list selected-station mirror) and exact offset `0x0fa3` maps to cached
  available-locomotive rating `[world+0x4cbe]`, but the checked save bytes at those exact dword
  starts do not look like clean preserved ids or floats. The only stable float-looking starts sit
  three bytes earlier, at `0x0f9c` and `0x0fa0`: `p.gms` yields roughly `96.8754` and `186.4795`,
  `q.gms` yields `329.9467` and the same `0x0fa0`-side candidate shape, `g.gms` yields `7.0` and
  `95.8507`, and `Autosave.gms` only shows the later `0x0fa0` candidate at about `68.2629`. So
  this later band now has the same conservative read as the post-text one: the save bytes are
  still offset-correlated to grounded live fields, but the exact live byte or dword layout is not
  yet validated as a direct on-disk mirror.
  One more structural cut is now grounded beyond that neighborhood. Under the same offset
  alignment used above, file offset `0x0fa7` maps to the start of the later scenario-state band
  `[world+0x4cc2]`, and `scenario_state_reset_defaults_seed_named_availability_collections_and_rebuild_runtime_bridges`
  `0x00436d10` now explicitly zeroes that late-state band before it separately zero-fills the
  twelve recipe books at `[world+0x0fe7]`. That reset owner is tighter now too: it does not just
  clear one anonymous slab. It first zeroes exactly `0x9b` dwords plus one trailing byte from
  `[world+0x4cc2]`, then separately clears the much larger late runtime slab rooted at
  `[world+0x66be]`, immediately reseeds setup-preview validity byte `[world+0x66be] = 1`,
  reseeds the same editor-owned `Minimum Start Year`, `Default Start Year`, and `Maximum Start
  Year` trio inside that same block at `[world+0x66ca] = 0x726`, `[world+0x66d2] = 0x74e`, and
  `[world+0x66ce] = 0x7d0`, reseeds the four neighboring startup dwords
  `[world+0x6a68/+0x6a6c/+0x6a70/+0x6a74] = 1`, sets the first chairman-slot special occupied-seat
  byte `[world+0x69db] = 1`, and also seeds the same scenario-metadata editor band later consumed
  by `map_editor_scenario_metadata_panel_refresh_controls` `0x004ca790` and rewritten by
  `map_editor_scenario_metadata_panel_handle_message` `0x004cb4a0`, whose write-side body copies
  bounded description and briefing texts into `[world+0x672e/+0x4f30/+0x5ae9]`, flips briefing
  selector `0x621f50`, toggles `[world+0x66de/+0x66f3]`, and reparses the start-year trio with the
  same `1829..2100` clamp plus `minimum <= default <= maximum` normalization, and also
  explicitly resets several already-grounded outcome, rule, and policy
  lanes: the scenario-rule table `[world+0x4a7f..+0x4b3f]` plus trailing scalar `[world+0x4b43]`,
  the outcome-status text root `[world+0x4b47]`, outcome or cheat words `[world+0x4a73/+0x4a77/+0x4a7b]`,
  the queued-event and fast-forward latches `[world+0x46c38/+0x46c3c/+0x66a2/+0x66a6/+0x66aa]`,
  the byte-policy and cached-scalar cluster `[world+0x4c74/+0x4c78/+0x4c7c/+0x4c88/+0x4c8c..+0x4c99/+0x4c9a/+0x4c9e/+0x4ca6/+0x4caa/+0x4cae/+0x4cb2/+0x4cb6/+0x4cba]`,
  and the trailing float strip `[world+0xbce..+0xbf6]` before reseeding its fixed defaults. That
  default reseed is concrete now too: `0x00436d10` restores `[world+0x0be2]` and its live mirror
  `[world+0x0bde]` to `1.0f`, seeds the next four tuning lanes
  `[world+0x0be6/+0x0bea/+0x0bee/+0x0bf2]` to `0x3c75c28f`, and seeds `[world+0x0bf6]` to
  `0x3ba3d70a` before the later selected-year and candidate refresh path runs. The recipe-side
  reset is explicit in the same way: after zeroing exactly `0xea3` dwords rooted at
  `[world+0x0fe7]`, the same owner does not preload one full recipe-book payload table. Instead it
  seeds only the per-book name lane from the fixed format string `# %1` at `0x005c9f78`, using
  generated ordinal strings `1..12` through `0x0051b700 -> 0x00518de0`, before later runtime
  recipe projection re-enters `0x00435630`. That means the reset path itself does not author any
  default line modes, amounts, or cargo-token strings in the later `book+0x3ed/+0x3f1` payload.
  That
  same reset owner is now the strongest current live bridge over the whole later pre-recipe
  plateau:
  after clearing `[world+0x4cc2..+0x4d02]` it rebuilds the named candidate and locomotive
  availability collections, reruns the selected-year adjustment path through
  `0x0051d3f0 -> 0x0051d390 -> 0x00409e80`, refreshes the derived year-threshold side through
  `0x00435603`, reruns candidate filter or visible-count maintenance through `0x0041e970`, and
  refreshes the cached available-locomotive rating through `0x00436af0`, which now reads as a
  year-tiered baseline `110/200/300` plus the strongest surviving live locomotive rating filtered
  by era-policy and named-availability gates, then normalized through the fixed `100/220` scale
  pair and clamped into the final `50..100` cache band at `[world+0x4cbe]`. So the aligned scalar
  plateau `0x0fa7..0x0fe7` now has a stronger boundary than “some bytes before the recipe books”:
  it is the later save-side neighbor immediately in front of a reset-and-rebuild band whose
  downstream consumers are already grounded. Local operand-side evidence is negative in a useful
  way too: after the bulk clear at `0x00436d10`, the current binary does not expose direct
  literal-offset reads or writes for the first dwords in `[world+0x4cc2..]`, so the opening slice
  of that plateau is currently better treated as one reset-owned late-state scalar plateau ahead
  of the recipe books than as a hidden cluster of missed per-field seams. The local layout seam is
  therefore closed at the current evidence level, and the family-level naming is now stable even
  though we still do not have per-dword decodes for most of that opening scalar run. The adjacent
  startup-side special-case gate is
  bounded now too: `0x00436c70` is not another generic late-state scalar helper. It is one
  hard-coded tutorial-signature predicate that only returns true when selector `0x10` is paired
  with the `384x448` map-size check, a live city count of `0x41`, first city name
  `Italy - North`, the current shell-side file/scenario root satisfying `0x4331e0 == 0x16`, and
  row `7` subtype byte `0x6`; the neighboring string table points at `Tutorial_2.gmp`. So this
  branch belongs with the startup/load special-case gates beside the reset owner, not with the
  now-conservatively named `0x4cc2..` late-state scalar plateau itself. The
  serializer-side evidence now sharpens that same boundary too: current local disassembly of
  `0x00446240` writes the leading six-dword tuning band, then falls into the world-grid and
  secondary-raster loops, and only after those loops jumps straight to `[world+0x0fe7]` for the
  recipe books. So the plateau is still a real save/load family, but not one direct serializer
  block in the same way as the recipe books or the scenario-rule band. The earlier
  late-state cluster is tighter now too: `[world+0x4c9a]` and `[world+0x4c9e]` are no longer just
  save-side counters in the reset slab. The support family at `0x0062b244` actively maintains them
  as two nonnegative live-entry counters through
  `support_collection_try_spawn_goose_entry_in_primary_counter_lane` `0x0040b0b0`,
  `support_collection_select_or_spawn_goose_entry_id` `0x0040b2d0`, and
  `support_collection_release_entry_and_decrement_world_type_counters` `0x0040af00`. The paired
  float lanes `[world+0x4ca6/+0x4caa]` are tighter in the same way: `0x0041144f` accumulates live
  deltas into pending lane `+0x4caa`, `scenario_state_roll_pending_float_0x4caa_into_accumulator_0x4ca6`
  `0x00433f02` rolls that pending value into accumulator `+0x4ca6`, and the shell-side query lane
  at `0x0042f89b/0x0042f8bb` reads both the pending-only and accumulated sums. `[world+0x4cb6]`
  is also no longer an anonymous save byte or dword: the shell-side `TrainList.win` family rooted
  at `0x006d3b34` actively mirrors the current selected train-side support-entry id there. The
  constructor `shell_train_list_window_construct` `0x00515f50` seeds the singleton and wires the
  top list controls `0x32c9/0x32ca`; the refresh owner
  `shell_train_list_window_refresh_controls` `0x005158f0` reselects `[world+0x4cb6]` when that id
  still resolves to one live train owned by the current company; and the message owner
  `shell_train_list_window_handle_message` `0x00515c60` mirrors top-list picks and direct payloads
  back into `[world+0x4cb6]` before republishing focus through `0x00433900` and the detail-panel
  transition manager. The earlier helper writes at `0x00514b0e`, `0x00515d14`, and `0x00515f40`
  now sit cleanly inside that same train-list selection seam. The smaller callback strip under the
  same family is grounded too: `0x005157e0` exposes the current top-side latch `0x006d3b30`,
  `0x00515780` preserves the lower action range `0x332c..0x36b0` only while the event still
  targets the active top list, `0x005157f0` is the shared top-list train-row summary renderer over
  `0x004bd4a0`, `0x00515820` is the focus-and-follow callback that republishes a selected train id
  into the shell detail controller and can recenter the world through the linked route object, and
  `0x005158b0` is the inactive-side lower-row refresh callback into `0x004bf320`.
  `[world+0x4cba]` is tighter in the same way now: it is the shared selected station id mirrored
  by the shell-side station-list and station-detail families, not just another save-visible late
  dword in the reset slab. `shell_station_list_window_refresh_rows_selection_and_status`
  `0x00506f30` restores `[world+0x4cba]` into the paired row controls `0x61a9/0x61aa` when that
  id still resolves to one live current-company station; `shell_station_list_window_handle_message`
  `0x005071e0` mirrors direct top-list row activations and side-picker results back into the same
  latch before optional recentering and detail-panel transition; and `shell_station_detail_window_handle_message`
  `0x00505e50` mirrors the current detail-manager station into `[world+0x4cba]` on setup. The
  earlier writes at `0x0050727a` and `0x005072cd` therefore now sit cleanly inside the same
  station-list selection seam rather than pointing to a separate late-state owner.
  The neighboring bytes `[world+0x4c90/+0x4c91/+0x4c92]` are narrower now too, but only in the
  negative sense: the current binary still shows no grounded non-reset readers or writers for
  those three one-byte lanes. In local static evidence they only appear in the shared
  scenario-state reset-and-rebuild owner `0x00436d10`, which clears them alongside the broader
  late-state cluster before the later selected-year, availability, and recipe-runtime rebuilds.
  So the strongest current read is that they remain reset-only late-state bytes, not yet another
  live shell or simulation seam.
  The earlier
  persisted six-dword tuning band should now
  be kept separate from that later slab rather than folded into the same “pre-recipe plateau”
  label. The editor and runtime bridge is tighter now too: the shell-side
  economic tuning owner `0x004ca980/0x004cadf0` writes the visible slider values directly into
  `[world+0x0be2/+0x0be6/+0x0bea/+0x0bee/+0x0bf2/+0x0bf6]` and mirrors the first lane into
  `[world+0x0bde]`; the write path is asymmetric too, because lane `0` uses its dedicated divisor
  at `0x005c85d8` while the trailing five lanes share the centered `(value-0xce)/0x005c87f8`
  path. The `.smp` save/load pair persists that same six-dword band; the post-load generation
  pipeline `0x004384d0` reseeds `[world+0x0bde]` from `[world+0x0be2]`, runs the preliminary
  candidate-availability prepass `0x00437737(0)` on setup calls, and only then enters its visible
  `318/320/321/319/322` progress lanes. `world_region_query_projected_structure_count_scalar_by_category`
  `0x004234e0` consumes `[world+0x0bde]` as one global multiplier on both its live-region and
  fallback projected-structure branches, but the branch split is tighter now too: only the
  live-region side also multiplies by cached building-count slot `[region+0x242]`, while the
  fallback side swaps to alternate difficulty table `0x005f33cc` and omits that count multiplier
  entirely. The same post-load owner is tighter on its gated setup phases too: if shell-state gate
  `[0x006cec74+0x174]` is live while master editor-mode latch `[0x006cec74+0x68]` stays clear, it
  marks one-shot latch `[world+0x46c3c] = 1`, runs `0x00421c20(1.0, 1)`, and then clears that
  latch again; if `[0x006cec74+0x178] > 0` under the same editor-mode clear gate it follows with
  `simulation_run_chunked_fast_forward_burst` `0x00437b20`. The `319` lane is tighter in the same
  way: when startup latch `0x006cd8d8` is clear it stamps `[0x006cec7c+0x79] = 1`, ensures
  `[world+0x6a6c] >= 1`, forces chairman-seat byte `[world+0x69db] = 1`, and then re-enters
  `0x004377a0` before the later route-entry and placed-structure refresh families. The
  editor-side read path is explicit on the same seam:
  `map_editor_economic_cost_panel_refresh_preview_curve_and_numeric_rows` `0x004caaf0` reads the
  same six-float band, builds the live preview curve on control `0x5be1`, and republishes the six
  numeric value rows through controls `0x5bce/0x5bd0/0x5bd2/0x5bd4/0x5bd6/0x5bd8`, so the panel is
  now grounded as a full read/write save-state owner rather than only a slider mutator. The
  neighboring `Cities/Regions` editor page is now a second grounded live consumer instead of just a
  page-local constructor: `map_editor_city_region_panel_format_selected_region_detail_stats_and_projected_building_rows`
  `0x004cc340` reads the same leading tuning lanes `[world+0x0be2/+0x0be6/+0x0bea/+0x0bee]` while
  it formats the selected region detail card and projected/live structure rows through
  `0x00422900` and `0x004234e0`. The
  recurring maintenance side is grounded too:
  `simulation_service_periodic_boundary_work` `0x0040a590` derives one bounded bucket from the
  selected-year gap, reads the corresponding float from the five-slot table
  `[world+0x0be6/+0x0bea/+0x0bee/+0x0bf2/+0x0bf6]`, and folds that result back into the running
  scalar `[world+0x0bde]` before its company/profile refresh sweep. Its aligned dword run now
  splits cleanly by
  save family. The
  base 1.05 saves (`Autosave.gms`, `nom.gms`) carry one stable signature with
  `0x0faf = 0x8000003f`, `0x0fb3 = 0x75c28f3f`, repeated `0x75c28f3c` lanes through `0x0fbf`, a
  sign-flipped lane `0x0fc3 = 0xa3d70a3c`, one tiny marker at `0x0fc7 = 0x0000003b`, and
  `0x0fcb = 0x00300000`. The scenario-save family (`p.gms`, `q.gms`) carries a different stable
  plateau over the same offsets, beginning `0x0faf = 0x4000003f`, `0x0fb3 = 0xe560423f`, then
  `0x03126f3b`, `0x1374bc3c`, and paired `0x23d70a3c` lanes at `0x0fbf/0x0fc3`, with
  `0x0fc7 = 0x0000003c`. The alt-save family (`g.gms`) follows the base signature through
  `0x0fc7`, then diverges sharply into the same `0xcdcdcd..` fill pattern already seen in its
  earlier header lanes. So the current best fit for `0x0fa7..0x0fe7` is a family-shaped aligned
  scalar plateau that belongs to save-side runtime state and terminates immediately before the
  grounded recipe-book block, not one more directly named live-field mirror. One conservative
  loader-side summary probe now starts exactly at that recipe root instead of extending the plateau
  model further. The fixed recipe-book block spans twelve books from `0x0fe7` with stride `0x4e1`,
  and the checked map/save pairs `Alternate USA.gmp -> Autosave.gms`, `Southern Pacific.gmp ->
  p.gms`, and `Spanish Mainline.gmp -> g.gms` preserve that rooted block byte-for-byte in the
  sampled local corpus. The current probe therefore treats it as preserved scenario payload rather
  than save-only runtime drift and reports the same structural shape the `.smp` owners use: one
  `book+0x3ed` annual-production dword, one `0x3d`-byte book header, and five repeated
  `0x30`-byte cargo-line tuples rooted at `book+0x3f1`, each with mode dword `+0x00`,
  annual-amount dword `+0x04`, supplied-token dword window `+0x08`, and demanded-token dword
  window `+0x1c`. That is enough to separate zero, `0xcd`-filled, and mixed books or lines
  without overstating line semantics beyond the grounded editor/runtime ownership already
  documented below.
  Local
  corpus clustering now makes the remaining split more specific. The base 1.05 save family
  (`Autosave.gms`, `nom.gms`) shares a narrow tail-heavy subset with stable relative offsets
  `0xec`, `0xf8`, `0x118`, `0x134`, and `0x138`, while still varying in value across files. The
  1.05 scenario-save family (`p.gms`, `q.gms`) shares a much broader stable set spanning almost the
  whole window from `0x04` through `0x134`, again with per-file scalar differences but consistent
  occupancy. Pairwise compare runs tighten that read further: `Autosave.gms` vs `nom.gms` does not
  preserve one common numeric tail signature even at the shared base-save offsets, and `p.gms` vs
  `q.gms` keeps the broad scenario-save occupancy pattern but still changes every shared value, with
  `q.gms` additionally lighting two extra lanes at `0x78` and `0x84`. So the current best fit is
  “family-shaped live scalar state” rather than family-default constants. The lone 1.05 alt-save
  sample (`g.gms`) only lights up four lanes at `0x58`, `0x6c`,
  `0x128`, and `0x12c`. The checked 1.05 maps and classic saves stay zero in that same bounded
  window, which strengthens the current read that this is runtime-save scalar state rather than
  generic map payload. One older unknown map-family outlier in the local corpus does still carry a
  populated window: `Tutorial_2.gmp` under the classic install tree. So the safest current note is
  “zero for grounded map families and classic save families, nonzero for observed 1.05 save
  families, with one older unknown-map exception.” Static consumer grounding is still sparse for
  that tail: direct object-offset hits currently only name the trailing scalar `[world+0x4b43]`
  through the editor panel and `.smp` save or restore family, while local opcode searches do not
  yet surface equally direct reads for the intervening `+0x4b0b..+0x4b3f` tail lanes. So the
  save-file family clustering is now strong enough to close the load/save seam at the current
  evidence level: those later tail scalars are one bounded post-sentinel special-condition save
  tail rather than a hidden extra serializer family. Individual dwords inside that tail still lack
  per-lane decodes, but the family-level name is now stable. The
  same branch is no longer world-entry-only either: current local
  disassembly now shows the identical lane-adjust and
  `0x51d3f0 -> 0x51d390 -> 0x409e80` sequence in the post-fast-forward selected-year tail inside
  `scenario_state_reset_defaults_seed_named_availability_collections_and_rebuild_runtime_bridges`
  `0x00436d10`, which lines up with the existing post-fast-forward callers already mapped under
  `world_refresh_selected_year_bucket_scalar_band` `0x00433bd0`,
  `scenario_state_ensure_derived_year_threshold_band` `0x00435603`,
  `structure_candidate_collection_refresh_filter_and_year_visible_counts` `0x0041e970`, and
  `scenario_state_refresh_cached_available_locomotive_rating` `0x00436af0`. The selected-year
  companion itself is tighter now too: `0x00433bd0` picks one scalar from the fixed 21-entry year
  ladder, seeds direct bucket lanes `[world+0x65/+0x69/+0x6d]`, then rebuilds the dependent
  complement trio `[world+0x71/+0x75/+0x79]` and the later scaled companion trio
  `[world+0x7d/+0x81/+0x85]` from that same source after the build-version-sensitive clamp through
  `0x00482e00(0x006cec74)`. That restore now
  also has some neighboring slot semantics bounded well enough to carry in the loader notes. Slot
  `31` `[0x006cec78+0x4afb]` is no longer best read as an unnamed runtime cargo-economy latch:
  local disassembly now ties it directly to the saved special-condition table entry `Use Wartime
  Cargos`, and the strongest current runtime owner is
  `structure_candidate_collection_refresh_cargo_economy_filter_flags` `0x0041eac0`. Inside that
  candidate-collection sweep the wartime-cargo branch only activates when slot `31` is set and
  then treats the string family `Clothing`, `Cheese`, `Meat`, `Ammunition`, `Weapons`, and
  `Diesel` as one special cargo set before writing the live candidate filter byte `[entry+0x56]`.
  That makes the old read-side note around `0x00412560` tighter too: the neighboring descriptor
  gate is now best understood as using the live copy of the `Use Wartime Cargos` scenario rule,
  the live cargo-availability latch at `[cargo+0x16e]`, and the paired selected-bank dword gates
  `[desc+0x24/+0x28]`, not an anonymous cargo-economy mode byte. Slot `34` `[0x006cec78+0x4b07]`
  is similarly bounded
  on the runtime side:
  `world_run_company_start_or_city_connection_chooser_with_region_field_0x2d_temporarily_cleared_if_rule_0x4b07`
  `0x004013f0`, which sits immediately above the broader company-start or city-connection chooser
  `0x00404ce0`, snapshots region dword `[entry+0x2d]` across all `0x18` live region records in
  `0x006cfc9c`, zeros that field while the chooser runs, and then restores the original values on
  exit. The chooser-side effect is now the useful grounded part: the same owner normally uses
  `[region+0x2d]` as one per-region exclusion gate while building startup or city-connection
  candidates, so slot `34` effectively suppresses that exclusion latch during the startup pass
  without needing a stronger semantic name for the field itself. Slot `29` `[0x006cec78+0x4af3]`
  is less semantically tidy but still worth carrying
  as a bounded consumer family: the placed-structure-side radial class-`2` stamp path only
  activates when that slot is nonzero and the linked candidate or era record at `[entry+0x41]`
  equals `5`, while two already-grounded world helpers
  `world_stamp_radial_secondary_raster_class_2_marks_from_world_coords` `0x0044e7d0`,
  `world_scan_secondary_grid_marked_cell_bounds` `0x0044ce60` and
  `world_service_secondary_grid_marked_cell_overlay_cache` `0x0044c670` also gate on the same
  slot. So the identity of slot `29` as saved rule data is grounded, but the downstream runtime
  semantics are still mixed enough that the loader should preserve the raw value without trying to
  rename its whole consumer family yet. The neighboring train-safety slots are now bounded enough
  to keep as a cautious runtime split too. Slot `33` `[0x006cec78+0x4b03]`
  `Disable Train Crashes AND Breakdowns` is the coarse gate inside
  `train_service_try_trigger_crash_or_breakdown_from_year_and_load_thresholds` `0x004af8a0`: the
  very first slot-`33` gate jumps straight
  to the function tail when the slot is set, bypassing the year-scaled threshold build, the later
  random or threshold comparison, and the two follow-on state transitions at `0x004ad7a0` and
  `0x004ada00`. Slot `32` `[0x006cec78+0x4aff]` `Disable Train Crashes` is narrower in the same
  family: after the threshold path has already run, the later slot-`32` gate uses slot `32` to
  suppress only the lower failure-transition path and force the milder follow-on at `0x004ada00`.
  That same slot-`33` read also appears in
  `train_query_deterioration_scalar_with_disable_bypass` `0x004ac460`, where setting it returns
  one fixed float immediately before the ordinary route-object-dependent calculation runs. So the
  current best loader-facing read is: slot `33` is the broad train deterioration bypass, while slot
  `32` matches its loader-facing label directly as the narrower `Disable Train Crashes` gate inside
  the same family, suppressing only the crash transition while leaving the breakdown branch live.
  That restore now
  also has one concrete file-side correlation in the classic `.gms` family: local save inspection
  now consistently finds `0x32dc` at `0x76e8`, `0x3714` at `0x76ec`, and `0x3715` at `0x77f8` in
  `Autosave.gms`, `kk.gms`, and `hh.gms`, leaving one exact `0x108`-byte span from `0x76f0` to
  `0x77f8` between `0x3714` and `0x3715`. That span already carries staged-profile-looking payload
  text such as `British Isles.gmp`, so the current static-file evidence now supports the atlas-side
  `0x108` packed-profile note for the classic save family as another serialized setup-profile slab,
  not an unrelated anonymous save trailer. The same classic corpus is tighter now too: the leading payload
  boundary is slightly skewed relative to the simple `0x76f0` chunk cut, which is why the classic
  map-path C string first becomes visible at relative offset `0x13` and the display-name string at
  `0x46` instead of the cleaner `0x10/0x43` split seen in the 1.05 branch. Outside that skewed
  front edge the block is otherwise almost entirely zeroed, and the three local samples are
  byte-identical except for the leading dword at `+0x00` (`3` in `Autosave.gms` and `hh.gms`,
  `5` in `kk.gms`). One middle strip in that classic block is now exact too: all three checked
  saves carry the same fixed bytes `+0x79..+0x8a = 25 07 01 00 01 00 01 00 00 00 00 00 da 33 00 00 01 65`.
  The currently atlas-tracked bytes `[profile+0x77]`, `[profile+0x82]`,
  `[profile+0x97]`, and `[profile+0xc5]` are all `0` in that classic sample set, so the current
  file-side evidence now supports a stronger boundary than the older “field layout unresolved” note:
  the classic slab preserves the same staged-profile string core and the same middle-band setup
  structure, but in the checked classic saves the branch-driving launch/campaign latches stay zero
  and most surrounding bytes remain empty. So the local static seam is closed here too: this is the
  same serialized setup/runtime profile family, with the classic-only extras carried
  conservatively as the fixed middle strip and the skewed front-edge framing. One 1.05-era
  file-side analogue is now
  visible too, but only as an inference from repeated save structure rather than a disassembly-side
  field map: local `.gms` files in `rt3_105/Saved Games` carry one compact string-bearing block at
  `0x73c0` with the same broad shape as the classic profile slab, including a leading dword at
  `+0x00`, one map-path string at `+0x10`, one display-name string at `+0x43`, and a middle strip
  around `+0x76..+0x88` that is now more specific than the earlier generic “small nonzero tail”
  note. Across all five checked 1.05 saves, the compact slab keeps `+0x77 = 0x07`, `+0x78 = 0x01`,
  `+0x7c = 0x01`, `+0x86 = 0x01`, and `+0x87 = 0x65`, while the scenario-sensitive pair
  `+0x82/+0x83` varies coherently as `0x4d/0x36` for `Alternate USA`, `0x90/0x1b` for
  `Southern Pacific`, and `0xa3/0x29` for `Spanish Mainline`. One narrower scenario-save split is
  visible inside that same strip too: the checked scenario saves `p.gms` and `q.gms` also carry
  `+0x7a = 0x05` and the extra four-byte band `+0x88..+0x8b = 66 67 68 69`, while the other
  checked 1.05 saves leave those lanes zeroed. Relative `+0x97` and `+0xc5` still remain `0`.
  The compared 1.05 save set is tighter now too:
  `Autosave.gms` and `nom.gms` cluster together on `Alternate USA.gmp` with `+0x82 = 0x4d`,
  `g.gms` carries `Spanish Mainline.gmp` with `+0x82 = 0xa3`, and `p.gms`/`q.gms` cluster on
  `Southern Pacific.gmp` with `+0x82 = 0x90`; across all five files the same inferred analogue
  lane at `+0x77` stays fixed at `0x07`, while the same map- or scenario-sensitive tail word at
  `+0x80` tracks those `0x4d/0xa3/0x90` byte lanes (`0x364d0000`, `0x29a30000`, `0x1b900000`).
  The leading dword at `+0x00` also splits the same corpus, with `Autosave.gms` alone at `3` and
  the other four checked 1.05 saves at `5`. That is enough to say the wider save corpus does
  contain nonzero candidates for two of the already-grounded profile lanes: `+0x77` is still the
  selected-year lane from the setup/runtime profile family, and `+0x82` is at least the same
  sandbox-launch anchor used by later `Setup.win` launch branches. The current corpus also shows
  that one of those grounded lanes, `+0x82`, varies coherently with the loaded scenario family.
  The same setup/runtime profile family now bounds more of the compact slab than before too:
  `runtime_profile_reset_default_setup_and_campaign_seed_fields` `0x0047bbf0` seeds
  `[profile+0x79] = 1`, `[profile+0x7b] = 0`, clears `[profile+0x82]`, writes one bounded
  random-like dword into `[profile+0x83]`, seeds the first setup row-marker byte
  `[profile+0x87] = 1`, and forces the file-backed launch or rehydrate latch `[profile+0x97] = 1`;
  `shell_setup_profile_copy_payload_scroll_count_and_campaign_byte_and_seed_row_categories`
  `0x0047be50` then copies payload lanes into `[profile+0x77/+0x79/+0x7b/+0xc5]`; and the broader
  setup-mode owner `shell_setup_window_select_launch_mode_and_apply_shell_state` `0x00502c00`
  treats `[profile+0x97]` as the file-backed launch or rehydrate latch, `[profile+0x82]` as the
  sandbox-side launch byte, and its dataset-backed row-selection lane now grounds the staged
  presence byte `[profile+0x10]` plus the paired `0x32`-byte file/path bands at
  `[profile+0x11]` and `[profile+0x44]`. The neighboring setup-side consumer note is tighter now
  too: `map-and-scenario-content-load.md` already grounds `[profile+0x79]` as the live-row
  threshold lane used by the payload-row draw callback and `[profile+0x7b]` as the current scroll
  or row-index lane adjusted by controls `0x0ce6/0x0ce7`. The current file-side 1.05 corpus now
  supports a stronger boundary than the earlier wider-layout note: this compact slab is
  not a byte-for-byte dump of the staged `0x108`-byte runtime profile, but a closely related
  serialized profile payload with a grounded setup core. The direct core lanes match the staged
  profile family (`+0x77`, `+0x79`, `+0x7b`, `+0x82`, `+0x87`, `+0x97`, `+0xc5`, and the paired
  `+0x10/+0x43` string bands), while the stable presence byte at `+0x0f`, the leading dword at
  `+0x00`, the scenario-sensitive middle word around `+0x80`, and the scenario-save-only
  `+0x88..+0x8b = 66 67 68 69` band show that the save slab also carries file-format-specific
  staging beyond the runtime profile core. The setup-side payload loader is tighter on the same
  seam now too: `shell_setup_load_selected_profile_bundle_into_payload_record` `0x00442400` does
  not load one single canonical payload shape. In the ordinary saved-profile lane it reads one
  small startup payload dword through the ordinary tag-`1` family, then one raw `0x03c2` preview
  block, and expands that byte surface into packed `ARGB` dwords rooted at `payload+0x03c2`. That
  same ordinary-profile dword is also
  stored into shared global `0x00620e94`, which later reappears in the early and late world-entry
  threshold gates. In the map-style lane `0x00442400` instead restores the larger setup payload
  family under `0x2ee0/0x2ee1`, and current local disassembly now makes the split explicit: this
  tagged map-style branch does not perform the `0x00620e94` store at all. Bundle versions
  `>= 0x3f7` restore the full `0x403c2`-byte setup-preview payload record, while older bundles
  only restore `0x402c9` bytes and explicitly zero the trailing `0x1003e`-byte tail at
  `payload+0x2c9`. That keeps the setup payload family aligned with the later live world block
  `[world+0x66be]` without overstating it as one uniform file layout across all setup/profile
  sources. The current ownership boundary is tighter now too: a direct full-binary xref sweep only
  turns up the already-grounded two direct writers to `0x00620e94`, namely the ordinary saved-profile
  path in `0x00442400` and the package-save prelude seed `0x00444dd0 = 0x26ad`; `0x00441ec0` only
  snapshots that dword into the transported sidecar strip, while `0x00437737` and `0x00444dc5`
  only compare against it.
  framing and scenario-family metadata around that shared setup core. So the local static seam is
  closed here: those grounded lanes belong to one serialized setup-profile slab, while the
  surrounding extra bytes now carry conservative framing names rather than reading as stray runtime
  fields. The leading dword is the serializer-tag lane, `+0x0f` is the stable presence byte, the
  classic branch has one skewed front edge plus one fixed middle strip, the 1.05 middle word around
  `+0x80` is the scenario-sensitive profile-framing lane, and `+0x88..+0x8b` is the
  scenario-save-only extra band. The loader-side
  family split is tighter now too: `p.gms` and `q.gms` no longer live under a generic fallback;
  their save headers now classify as one explicit `rt3-105-scenario-save` branch with preamble
  words `0x00040001/0x00018000/0x00000746` and the early secondary window
  `0x00130000/0x86a00100/0x21000001/0xa0000100`, while `g.gms` now classifies as a second
  explicit `rt3-105-alt-save` branch with the different preamble lane
  `0x0001c001/.../0x00000754` and early window
  `0x00010000/0x49f00100/0x00000002/0xa0000000`. That branch now carries the same bootstrap,
  anchor-cycle, named 1.05 trailer, and narrow profile-block extraction path as the other 1.05
  saves. The bridge just below that trailer is now explicit too: the common 1.05 save branch
  carries selector/descriptor `0x7110 -> 0x7801` in `Autosave.gms` and `0x7110 -> 0x7401` in
  `nom.gms`, and both still reach the same first later candidate at
  `span_target + 0x189c`, well before the packed profile at `span_target + 0x3d48`; the
  `rt3-105-alt-save` branch instead carries `0x54cd -> 0x5901` and its first later candidate
  lands at `packed_profile + 0x104`, essentially on the profile tail; the scenario-save branch
  still diverges locally with `0x0001 -> 0x0186` and never enters that later `0x32c8`-spanned
  bridge at all. The common-branch bridge payload is narrower now too: both checked base saves
  expose the same 0x20-byte primary block at `0x4f14` followed by the same denser secondary block
  at `0x671c`, `0x1808` bytes later, and that secondary block now appears to run intact up to the
  packed-profile start at `0x73c0` for a total observed span of `0xca4` bytes. The trailing slice
  of that secondary block is now typed one level further: a small header at `secondary+0x354`
  carries the observed stride `0x22`, capacity `0x44`, and count `0x43`, followed by a fixed-width
  67-entry name table starting at `secondary+0x3b5` and running through names like
  `AluminumMill`, `AutoPlant`, `Bakery`, `Port00..11`, and `Warehouse00..11`, with a short footer
  (`dc3200001437000000`) after the last entry. The trailing per-entry word is now surfaced too:
  most entries carry `0x00000001`, while the currently observed zero-trailer subset is
  `Nuclear Power Plant`, `Recycling Plant`, and `Uranium Mine`. That footer is tighter now too:
  it parses directly as `0x32dc`, `0x3714`, and one trailing zero byte, so the shared
  map/save catalog currently ends on the same two grounded late-rehydrate progress ids that the
  classic staged-profile band already exposed. The strongest structural read is therefore that the
  entire `0x6a70..0x73c0` catalog region is shared verbatim between `Alternate USA.gmp` and the
  derived `Autosave.gms`, not rebuilt independently during save. Combined with the earlier
  grounded record-layout work under `0x00437737`, `0x00434ea0`, and `0x00434f20`, the current
  safest semantic read is that this shared catalog is the bundled source form of the scenario-side
  named candidate-availability table later mirrored into `[state+0x66b2]`, with each entry's
  trailing dword now reading as the same availability override bit later copied into
  `[candidate+0x7ac]`. The candidate-side refresh strip is tighter now too: `0x00412c10` walks
  the live candidate pool, forces `[candidate+0x7ac] = 1` whenever availability bytes
  `[candidate+0xba/+0xbb]` are already set or subtype `[candidate+0x32]` is not `2`, and only for
  the remaining subtype-`2` records does it consult `0x00434ea0` by stem before tailing into the
  dependent cargo-economy filter rebuild `0x0041eac0`. The adjacent collection helpers also read
  cleanly now: `0x00412bd0` is the collection-wide `0x00411ee0` cargo-summary rebuild sweep over
  imported `0xbc` descriptor arrays, explicitly rebuilding the two compact cargo-membership tables
  `[candidate+0x79c/+0x7a0]`, their counts `[candidate+0x7a4/+0x7a8]`, and the scaled runtime rate
  band `[candidate+0xa1..+0xb8]`, while `0x00412ba0` is the remove-and-release sibling that clears
  one candidate's dependent runtime descriptor and cargo-membership tables through `0x00411cb0`
  before erasing that id from the pool. One lower runtime detail is explicit now too:
  `0x00411ee0` does not just “refresh summary tables.” It rebuilds the two emitted cargo-id tables
  at `[candidate+0x79c]` and `[candidate+0x7a0]` from one temporary `0x35`-cargo mark band, stores
  their counts at `[candidate+0x7a4]` and `[candidate+0x7a8]`, and accumulates the scaled runtime
  rates into `[candidate+0xa1..+0xb8]`; mode-`0` descriptor rows use the shared production cap at
  `[candidate+0x2a]` divided by the descriptor amount, while nonzero mode rows bypass that cap
  scaling. The shared reset side is explicit now too: `0x00436d10` is the scenario-state
  reset-and-rebuild owner beneath startup and world-entry. It zeroes the late scenario-state bands,
  seeds the fixed minimum/default/maximum start-year trio and chairman-slot rows, reseeds the same
  six-dword economic-tuning
  band later serialized at `0x00446240`, restored at `0x00446d40`, and edited through
  `0x004ca980/0x004caaf0/0x004cadf0`, rebuilds the two named-availability collections at
  `[state+0x66b2]` and `[state+0x66b6]`, zero-fills the twelve recipe books at `[state+0x0fe7]`,
  then only re-seeds their per-book name lane from the fixed `# %1` format string at `0x005c9f78`.
  Its selected-year import tail is explicit now too: in the campaign/setup-but-not-sandbox lane it
  copies profile year word `[profile+0x77]` into scenario default start year `[state+0x66d2]`,
  seeds the
  Jan-1 tuple lanes `[state+0x05/+0x09]` through `0x0051d3f0`, conditionally decrements that chosen
  year through the shell/tutorial gates at `[0x006cec74+0x68/+0x178]` and `[0x006cec78+0x4af7]`,
  and only then rebuilds the absolute selected-year counter through `0x0051d390 -> 0x00409e80`,
  the selected-year bucket band through `0x00433bd0`, the derived year-threshold band through
  `0x00435603`, and the year-gap scalar helper `0x00434130`, which now reads more tightly as a
  two-stage bridge that first stores one current-year-minus-1850 normalized float into
  `[world+0x4ca2]` and then immediately reclamps that same field into the closed `1/3..1.0`
  band by flooring sub-threshold values to literal `0.333333...` and capping larger values at
  `1.0`. Only after that
  selected-year and
  calendar chain does it re-enter `0x00435630`, `0x0041e970`, `0x00412bd0`, and `0x00436af0`. The loader-side coverage
  around world entry is tighter now too. `0x00443a50` does not just “restore the late profile
  block” after the tagged collections load: it re-enters `0x00436d10`, restores the late
  setup-preview payload block `[world+0x66be]` from `0x2ee0/0x2ee1`, immediately re-normalizes that
  payload through
  `shell_setup_payload_seed_unique_row_category_bytes_and_marker_slots` `0x0047bc80`, reloads the
  `0x108`-byte profile block, mirrors the campaign/setup byte
  `[profile+0xc5]` and sandbox launch byte `[profile+0x82]` into `[world+0x66de/+0x66f2]`,
  restores `[profile+0x77]` into the selected-year lanes, reruns
  `0x00409e80`, `0x00433bd0`, `0x00435603`, `0x00444dc5`, `0x0041e970`, `0x00412bd0`,
  `0x00434130`, and `0x00436af0`, and only then rehydrates `[world+0x66b2]`, `[world+0x66b6]`,
  and the later locomotive override refresh `0x00461e00`. That named-availability restore split is
  tighter now too: the candidate side keeps only rows whose copied names survive the built-in stem
  rejects and still resolve into the live candidate pool, with no later fallback preseed if that
  validated pass stays empty, while the locomotive side bulk-reinserts its fixed `0x41`-byte rows
  raw and only then falls back to `0x004350b0` if the collection is still empty. The loader-side
  coverage is tighter now too:
  the same table parser now
  attaches both to the common-save bridge payload and directly to the fixed source range in
  `.gmp` files and the non-common `rt3-105-scenario-save` / `rt3-105-alt-save` branches. That
  makes the scenario variation explicit instead of anecdotal. `Alternate USA` keeps only three
  zero-availability names in this table (`Nuclear Power Plant`, `Recycling Plant`, `Uranium
  Mine`), `Southern Pacific` widens the zero set to twelve (`AutoPlant`, `Chemical Plant`,
  `Electric Plant`, `Farm Rubber`, `FarmRice`, `FarmSugar`, `Nuclear Power Plant`, `Plastics
  Factory`, `Recycling Plant`, `Tire Factory`, `Toy Factory`, `Uranium Mine`), and `Spanish
  Mainline` widens it again to forty-two, including `Bauxite Mine`, `Logging Camp`, `Oil Well`,
  `Port00`, and the `Warehouse00..11` run while also flipping `Recycling Plant` back to
  available. The header lanes just ahead of the table vary coherently with those scenario
  branches too: `Alternate USA` carries `header_word_0 = 0x10000000`, `Southern Pacific`
  carries `0x00000000`, and `Spanish Mainline` carries `0xcdcdcdcd`, while the structural
  fields from `header_word_2` onward remain stable in a fuller fixed-record strip:
  `0x332e`, `0x1`, `0x22`, `0x2`, `0x2`, then the observed capacity/count pair (`0x44`, `0x43`
  in the checked save-side probe), followed by `0x0`, `0x1`; the 9-byte footer still decodes as
  `0x32dc`, `0x3714`, `0x00` in all three checked maps. The runtime-side support family is now
  explicit enough to narrow that strip further without overclaiming ownership: the shared indexed
  collection constructor `0x00518570` and growth helper `0x00517f90` really do seed the same
  collection-shape header family at `[this+0x04/+0x08/+0x0c/+0x10/+0x14/+0x18]` before the live
  payload slab, tombstone bitset, and auxiliary link bands are materialized at
  `[this+0x30/+0x34/+0x3c..+0x44]`. So the file-side prefix now reads more like one source-side
  fixed-record table header than a random magic run: the stable `0x1/0x22/0x2/0x2/0x44/0x43`
  lanes align much better with one fixed-record flag plus one record-stride/growth/bound/count
  family than with direct availability payload. The gap is narrower now too: the later named-
  availability runtime save path does use the shared serializer `0x00517d90` on the non-`.smp`
  package branch, but the `.smp` path still writes direct counted fixed-row runs instead. So the
  file table still is not proven to be a byte-for-byte dump of one single runtime
  indexed-collection body with tombstone and auxiliary-band tails across every save family.
  A wider corpus scan over the visible `.gmp`/`.gms` files makes those two anonymous header
  lanes less mysterious too: the parser currently sees only three stable
  `(header_word_0, header_word_1)` pairs across 79 files with this table shape, namely
  `(0x00000000, 0x00000000)`, `(0x10000000, 0x00009000)`, and
  `(0xcdcdcdcd, 0xcdcdcdcd)`. The zero-availability count varies widely underneath the first and
  third pairs (`0..56` under the zero pair, `14..67` under the `0xcdcdcdcd` pair), so those two
  lanes no longer look like counts or direct availability payload; the safest current read is
  that they are coarse scenario-family or source-template framing above the stable fixed-record
  header strip `0x332e/0x1/0x22/0x2/0x2/(capacity)/(count)/0x0/0x1`, with `0xcdcdcdcd` still
  plausibly acting as one reused filler or sentinel lane rather than a meaningful numeric
  threshold. Current exported
  disassembly notes still do not ground one direct loader-side or editor-side consumer of
  `header_word_0` or `header_word_1` themselves, so that family-marker read remains an
  inference from corpus structure rather than a named field assignment. The save-side runtime
  serializers now sharpen that boundary differently, though: the direct `.smp` path still emits
  the named candidate and locomotive availability families as direct counted fixed-row runs, while
  the non-`.smp` package-save prelude does call the shared indexed-collection serializer
  `indexed_collection_serialize_header_and_live_entry_payload_band` `0x00517d90` on those same two
  runtime collections before continuing into the later tagged-save families. So the anonymous
  file-side `header_word_0/1` pair is no longer excluded by the package-save branch alone, but the
  strongest current ownership boundary is still outside the direct `.smp` runtime row payload:
  they behave like outer source-family framing above the stable fixed-record table rather than like
  one proven loader-side field pair consumed inside the live named-availability collections.
  The new loader-side compare command makes the save-copy claim sharper too: for the checked
  pairs `Alternate USA.gmp -> Autosave.gms`, `Southern Pacific.gmp -> p.gms`, and
  `Spanish Mainline.gmp -> g.gms`, the parsed candidate-availability table contents now match
  exactly entry-for-entry, with the only reported differences being the outer container family
  (`map` vs `save`) and source-kind path (`map-fixed-catalog-range` vs the save-side branch).
  The save-side `.smp` writer is explicit now too: inside `world_runtime_serialize_smp_bundle`
  `0x00446240`, the serializer first writes the current count of `[world+0x66b2]`, then one fixed
  `0x22`-byte candidate-name-plus-dword record for each live entry, then the current count of
  `[world+0x66b6]`, then one fixed `0x41`-byte locomotive-name-plus-dword record for each live
  entry. At version `>= 0x3f2` it also writes one direct six-dword save plateau before the later
  manager bands: one dword from `[world+0x0be2]` and then the five successive dwords at
  `[world+0x0be6/+0x0bea/+0x0bee/+0x0bf2/+0x0bf6]`. Later in the same serializer it brackets the
  live event collection with chunk ids
  `0x4e21/0x4e22` and delegates the actual per-event packed-state save to
  `scenario_event_collection_serialize_runtime_records_into_packed_state` `0x00433060`. So the
  save/load bridge is now symmetric on structure as well as on semantics: the named availability
  collections are not derived-only runtime tables; they are serialized directly into `.smp` and
  then rehydrated back into `[world+0x66b2]` and `[world+0x66b6]` before the later candidate and
  locomotive refresh passes run.
  The non-`.smp` package side is explicit now too. The fallback owner
  `map_bundle_open_reference_package_and_serialize_early_world_datasets` `0x00444dd0` is not a
  generic database opener; it is the early package-save prelude that seeds stage/progress globals
  `0x00620e94/0x0062bec8/0x0062becc/0x0062bed0`, opens one `0x30d40` bundle, and, in the editor-map
  package branch, first runs
  `scenario_state_preseed_named_candidate_availability_overrides_from_editor_map_placed_structures`
  `0x00436a70`, which walks qualifying placed structures, resolves their linked candidate/runtime
  owners, and upserts boolean availability overrides from owner names before the later direct
  collection save. It then serializes the first direct save band in fixed order: chunks
  `0x32c8/0x32c9`, the late setup-preview payload block `[world+0x66be]`, the shared
  indexed-collection serializer `0x00517d90` over candidate named-availability collection
  `[world+0x66b2]`, chunk `0x32dc`, the staged `0x108` profile block under `0x3714/0x3715`, the
  same shared serializer over locomotive named-availability collection `[world+0x66b6]` under
  `0x32dd`, then `world_serialize_runtime_grid_and_secondary_raster_tables_into_bundle`
  `0x00449520` for the early world-grid/core-raster band under chunk families `0x2ee2..0x2f44`,
  then
  `aux_candidate_collection_serialize_records_into_bundle_payload` `0x00416a70` for the direct
  `0x0062b2fc` source-or-auxiliary record family, then
  `placed_structure_collection_serialize_local_runtime_records_into_bundle` `0x00413440`, the
  direct indexed-collection header save on the route-link family `0x006ada90` through
  `0x00517d90`, `placed_structure_collection_serialize_dynamic_side_buffers_into_tagged_bundle`
  `0x00481310` on `0x006cec20`, and
  `linked_route_object_collection_serialize_records_into_tagged_bundle` `0x0041d4c0` on
  `0x0062ba84`, and only then the neighboring reference and manager families before the later
  tagged-collection tail under
  `shell_map_file_world_bundle_coordinator` `0x00445de0`. Current evidence still bounds that
  `0x006ada90` lane as header-only persistence, with live endpoint or route-style state regenerated
  later during bring-up instead of emitted through a separate per-record tagged payload owner. The
  package tail is explicit now too:
  after the manager families it writes one direct dword from `[world+0x19]`, a zeroed `0x1f4`-byte
  slab under chunk `0x32cf`, closes the bundle, derives the preview path through `0x00442740`, and
  then conditionally emits the companion-image sidecar through `0x00441f70` when companion-image
  byte `[world+0x66c8]` is set and the companion-payload rewrite sidecar through `0x00442900`
  when companion-payload byte `[world+0x66c9]` is set. The companion-payload pair is tighter now
  too: `0x004427c0` is the `.tmp`-extension rewrite owner that rewrites one whole sidecar file via
  `0x00553000`, while `0x00442900` is the path-plus-stored-offset sibling that rewrites the same
  middle band from the byte offsets already staged in `[record+0x18/+0x1c]`. The producer boundary
  is tighter than the older shorthand too: current local xrefs still do not show standalone
  byte-local writers for `[world+0x66c8]` and `[world+0x66c9]` in the package path, but the two
  bytes are still written by bulk `[world+0x66be]` copy lanes on restore and multiplayer mirror
  through `0x00446d40` and `0x0046cf40`. The ordinary producer is explicit now too: settings
  dwords `[0x006d4024+0x11471e]` and selector-rooted `0x0062bec4` feed payload bytes `+0x0a/+0x0b`
  through `0x00442ba0`, so the package path is reusing those setup-preview payload lanes rather
  than inventing separate byte-local sidecar gates.
  The two outer shell coordinators above those package and runtime branches are explicit now too.
  `shell_map_file_entry_coordinator` `0x00445ac0` is no longer just the generic open path: it
  clears the caller-supplied success dword, increments nested open counter `0x0062be6c`, and then
  either routes a direct seeded stem into `.smp` restore through
  `world_load_saved_runtime_state_bundle` `0x00446d40` when a live runtime world is already active
  or flag bit `0x8` is set, or routes the same direct seeded stem into the heavier world-entry
  branch `0x00443a50` with one trailing flag derived from `(flags>>2)^1`. Its quickload and
  interactive sides are explicit in the same way: bit `0x1` seeds the Quicksave base stem from
  `0x005ca9cc`, appends `.gmp` under editor-map flag `[0x006cec74+0x68]` and otherwise the same
  `.gms/.gmc/.gmx` family used by the interactive chooser, while the non-Quicksave chooser re-enters
  `shell_file_request_dialog_collect_target_path` `0x004dd010` with load modes
  `4=.gmp`, `8=.gms`, `9=.gmc`, and `10=.gmx`. The save-side sibling
  `shell_map_file_world_bundle_coordinator` `0x00445de0` now has the same shape: it seeds save-side
  selector `0x0062bec4` from shell fields `[0x006d4024+0x11472a]` or `[+0x11472e]` according to the
  same early branch that chooses the save-side variant, accepts either an explicit caller stem, a Quicksave stem from `0x005ca9cc`,
  or the localized `Autosave` stem from string id `387`, chooses save modes
  `3=.gmp`, `0=.gms`, `1=.gmc`, `2=.gmx`, or side-owner-only `11=.gmt`, then either appends the
  fixed `.smp` token and re-enters `world_runtime_serialize_smp_bundle` `0x00446240` when a live
  runtime world exists or falls back to the package side through `0x00444dd0`, with the `.gmt`
  side-owner branch packaged instead into `0x006cd8d8+0x8f48` and submitted through
  `multiplayer_preview_dataset_submit_transport_request` `0x00469d30`. Those two selector dwords
  are now bounded as part of the same settings-window-owned sidecar family toggled by
  `shell_settings_window_handle_message_dispatch_and_persist_display_runtime_sidecar_family`
  `0x00464c80`, not as hidden save/load-only fields.
  The paired load-side seam is explicit now too. `aux_candidate_collection_construct_stream_load_records_and_refresh_runtime_followons`
  `0x004196c0` rebuilds the same `0x0062b2fc` family from the tagged import source around
  `0x005c93fc`, re-entering
  `aux_candidate_record_stream_decode_fixed_fields_and_optional_mask_planes` `0x00414490` for
  each decoded source record before the broader
  rebank-or-clone refresh
  `aux_candidate_collection_rebank_or_clone_records_by_availability_pass_and_refresh_owner_links`
  `0x00419230`. That lower decode body is explicit now too: it imports the six fixed `0x1e`-byte
  stem bands, the small scalar tail through `[record+0xcd]`, applies the two exact-stem rewrites
  for that tail word, allocates and fills up to four optional heap planes at
  `[record+0xcf/+0xd3/+0xd7/+0xdb]`, stamps the corresponding presence latches at
  `[record+0x177/+0x17b/+0x17f/+0x183]`, frees any plane whose decode stayed empty, and seeds
  `[record+0x1a3] = 1.0f`. Save-side ownership is explicit on the other end too:
  `aux_candidate_collection_serialize_records_into_bundle_payload` `0x00416a70` builds its
  temporary scored-node queue through callback
  `aux_candidate_record_chain_callback_collect_unique_link_keys_into_save_queue` `0x00416830`,
  which walks each record's linked chain, chooses one dedupe key from the terminal node, and
  pushes only unique keys into the queue at `0x0062ba58` while counting them in `0x0062ba64`. The
  release side is split cleanly as well:
  `aux_candidate_collection_release_templates_queues_and_indexed_storage` `0x00419680` tears that
  family back down through
  `aux_candidate_collection_release_live_entries_scratch_roots_and_helper_bands` `0x00416950`,
  which walks every live entry, re-enters
  `aux_candidate_collection_release_entry_optional_mask_planes_and_erase` `0x004168e0`, clears the
  scratch root `0x0062b300`, drains the temporary scored-node family `0x0062ba58..0x0062ba74`,
  and only then releases the three helper bands at `[this+0x88/+0x8c/+0x90]`. That follow-on pass
  is tighter now too: `0x00419230` requires both live scenario state and the live
  structure-candidate pool, then
  runs two availability-bank passes keyed by candidate bytes `[+0xba]` and `[+0xbb]`. For each of
  the twelve ordinals it picks one current-bank template entry, tries to reuse one prior target by
  ordinal field `[entry+0x187]`, clones the full fixed record plus up to four optional heap
  payload planes `[+0xcf/+0xd3/+0xd7/+0xdb]` when the target differs from the template, then
  republishes the built-in pass label into `[entry+0x22]` and `[entry+0x04]` and rebinds owner id
  `[entry+0x173]` by exact stem match back into the live candidate pool. So the `0x0062b2fc`
  import seam is no longer just stream-load plus teardown: it now has one explicit post-load
  rebank/projection pass between those endpoints, and the restore-side sibling is explicit too.
  `aux_candidate_collection_restore_temp_record_bank_and_queue_keys_from_packed_state` `0x00413f80`
  restores the queued-key table `0x0062ba6c/0x0062ba70`, the temporary record bank at `0x0062b2f8`,
  and the matching count latches `0x0062ba64/0x0062ba68/0x0062ba74` from packed state. When the
  restore flags demand a live reimport immediately afterward, world-entry restore then re-enters
  `aux_candidate_collection_release_live_entries_then_reimport_records_and_refresh_runtime_followons`
  `0x0041a950`, which releases every live entry through vtable slot `+0x08` and tails straight
  back into `0x004196c0`.
  The neighboring tagged region-manager seam is explicit too. Outside the direct `.smp` branch, the
  live region collection at `0x0062bae0` now has a matched tagged save/load pair:
  `world_region_collection_refresh_records_from_tagged_bundle` `0x00421510` and
  `world_region_collection_serialize_records_into_tagged_bundle` `0x004215e0`. Those owners bracket
  the collection with chunk family `0x5209/0x520a/0x520b`, forward collection-side metadata through
  the indexed-collection helpers, and then dispatch each live region record through the region
  vtable slots `+0x40` and `+0x44`. That keeps the region-record persistence seam distinct from the
  separate geographic-label database load path on `0x006ada80`.
  The two adjacent tagged database families are explicit now too. The geographic-label database at
  `0x006ada80` has the matched tagged pair
  `geographic_label_database_refresh_records_from_tagged_bundle` `0x00461580` and
  `geographic_label_database_serialize_records_into_tagged_bundle` `0x00461650`, both bracketing
  chunk family `0x5209/0x520a/0x520b` and dispatching per-record virtual slots `+0x40/+0x44`
  after the indexed-collection header helpers. The neighboring city-database entry collection at
  `0x006cea50` has the same symmetry on its own tag family
  `0x61a9/0x61aa/0x61ab` through
  `city_database_entry_collection_refresh_records_from_tagged_bundle` `0x00474540` and
  `city_database_entry_collection_serialize_records_into_tagged_bundle` `0x00474610`.
  The adjacent territory and support families are explicit now too. The live territory collection at
  `0x006cfc9c` has the matched tagged pair
  `territory_collection_refresh_records_from_tagged_bundle` `0x00487c20` and
  `territory_collection_serialize_records_into_tagged_bundle` `0x00487cc0`, both bracketing tag
  family `0x61a9/0x61aa/0x61ab`; current per-entry slots `0x00487670/0x00487680` are no-op load
  and save callbacks, so that bundle lane currently persists only collection-side metadata and live
  ids, not per-entry payload. The neighboring support family at `0x0062b244` now has the same
  bounded symmetry too:
  `support_collection_refresh_records_from_tagged_bundle` `0x0040b5d0` versus
  `support_collection_serialize_tagged_records_into_bundle` `0x0040b6a0`, both over chunk family
  `0x2af9/0x2afa/0x2afb` with collection-side metadata forwarded through the indexed-collection
  helpers and per-entry virtual slots `+0x40/+0x44`.
  The restore-side symmetry is explicit too: inside `world_load_saved_runtime_state_bundle`
  `0x00446d40`, the loader first clears `[world+0x66b2]`, reads one counted run of fixed
  `0x22`-byte candidate-name-plus-dword records, and inserts only the rows whose copied names
  survive both fixed built-in stem rejects `0x005c8f94/0x005c8e4c` and then resolve back into the
  live candidate pool `0x0062b268` through `0x00412b70`; the rejected rows are discarded instead of
  blindly restoring stale candidate names, and there is no later candidate-side fallback preseed
  if that validated pass stays empty. The same loader then clears and repopulates `[world+0x66b6]`
  from one counted run of fixed `0x41`-byte locomotive-name-plus-dword records without the
  candidate-side reject-or-resolve filter. After that raw locomotive restore it preserves the older
  empty-collection fallback by re-entering
  `scenario_state_upsert_named_locomotive_availability_record_and_refresh_runtime_usage`
  `0x004350b0` only when `[world+0x66b6]` stayed empty. The startup and restore-side preseed
  callers are tighter now too: the common startup lane at `0x00438d6b` and the `.smp` restore
  fallback at `0x004478ea` both resolve one linked era name through `0x00461c80` and then upsert
  it with literal availability bit `1`, matching the later live-pool sweep inside `0x00461eab`.
  The restore-side condition is explicit now too: `0x004478ea` only runs after the direct counted
  `0x41`-byte restore left `[world+0x66b6]` empty, so this is a true empty-collection fallback
  rather than a second unconditional load pass.
  The same `.smp` loader then brackets the
  live event collection at `0x0062be18` with chunk ids `0x4e21/0x4e22` and delegates the per-event
  packed-state restore to `scenario_event_collection_refresh_runtime_records_from_packed_state`
  `0x00433130`, which itself opens `0x4e99`, refreshes collection-side metadata, opens `0x4e9a`,
  materializes each live event through `0x0042db20`, and closes `0x4e9b`.
  The earlier restore spine is explicit now too. `0x00446d40` dismisses the current shell detail
  controller, tears down the prior runtime world through `world_runtime_release_global_services`
  `0x00434300`, rebuilds the startup-side runtime roots through
  `shell_active_mode_run_profile_startup_and_load_dispatch` `0x00438890`, allocates the new world
  root at `0x0062c120` through `0x0044cf70` using `(width+1, height+1)` from the bundle, and then
  restores one dword per world-grid cell through
  `world_write_companion_float_grid_cell_and_optionally_refresh_rect` `0x0044dca0` before the later
  raster compatibility loops begin. The secondary-raster side is tighter in the same way: for
  versioned bundles at `>= 0x3ec` it restores the four sidecar byte planes through
  `world_load_four_sidecar_byte_planes_from_runtime_bundle` `0x00448f60`, then restores the versioned
  per-cell compatibility bits through the byte-level helpers
  `0x00448c20/0x00448cb0/0x00448d90/0x00448e60/0x00448e90/0x0044de30`, with the older pre-`0x400`
  branch explicitly clearing those newer bits back to the legacy fallback pattern.
  One adjacent mid-restore preview branch is explicit now too: for version `>= 0x3ee` the loader
  restores one width/height-tagged dword surface, optionally resamples it through
  `shell_world_presentation_stage_overlay_rect_from_normalized_bounds` `0x00534930`, republishes it
  through `0x00534730/0x00534af0`, frees the temporary buffer, and then re-enters `0x004882e0` on
  the neighboring manager family.
  The region-side restore band is explicit now too. After seeding default regions through
  `world_region_collection_seed_default_regions` `0x00421b60`, `0x00446d40` restores one counted run
  of fixed `0x29`-byte region rows, resolves or allocates each region through
  `0x00421660/0x00518140`, writes one direct saved dword into `[region+0x272]`, writes one shared
  density dword into both `[region+0x25a/+0x25e]`, and on pre-`0x3f3` bundles synthesizes that
  shared density dword from the legacy lookup table at `0x005f3a28` keyed by the serialized bucket
  field instead of reading it directly, then reruns
  `world_region_refresh_profile_availability_display_strings_for_cached_selector_0x2f2`
  `0x004204c0`, and then reloads the per-region profile
  subcollection at `[region+0x37f]`. It then restores one second counted run of fixed `0x1e+4`
  rows whose copied names must survive the fixed reject stems and still resolve back into the live
  candidate pool before the row is accepted into that region-owned subcollection. That keeps the
  `.smp` restore seam broader and cleaner than before: it is not only named availability and event
  state, but also full region-owned profile and policy rows, one versioned preview surface branch,
  and the older direct companion-float grid restore above them. The pre-recipe save-only scalar
  plateau is explicit on the restore side now too: at version `>= 0x3f2`, `0x00446d40` first reads
  one dword into `[world+0x0be2]`, immediately mirrors that same value into `[world+0x0bde]`, and
  then reads the five successive dwords at `[world+0x0be6/+0x0bea/+0x0bee/+0x0bf2/+0x0bf6]`. So the
  current boundary is tighter than the earlier `save-only plateau` wording: one six-dword save
  band is directly persisted first, and only after that does the separate later
  `0x0fa7..0x0fe7` family-shaped slab lead into the fixed recipe-book root at `0x0fe7`. The
  loader-side bridge explicitly fans the first persisted tuning lane back into the neighboring
  manager scalar at `[world+0x0bde]` before the later tagged database and rule-band restores run.
  The adjacent candidate-side recipe rebuild is structurally closed now too: the local binary now
  only treats the imported supply-marker token family as opaque preserved scenario payload before
  those bands are projected back into live cargo ids through exact-name matching. That same
  selected-year bridge also has the
  explicit companion `world_refresh_selected_year_bucket_scalar_band` `0x00433bd0`, which now
  reads as the real selected-year bucket rebuild owner rather than a generic follow-on math body:
  it bins packed year word `[world+0x0d]` against the 21-step threshold ladder at `0x005f3980`,
  chooses either the first bucket baseline, the terminal bucket scalar at `0x005f3a24`, or one
  interpolated scalar from the paired `(year,value)` table at `0x005f3978/0x005f3980`, and then
  rebuilds the dependent selected-year float band rooted at `[world+0x65/+0x69/+0x6d]` before the
  later threshold and presentation helpers continue; and then
  rehydrates the named locomotive availability collection at `[world+0x66b6]` through
  `locomotive_collection_refresh_runtime_availability_overrides_and_usage_state` `0x00461e00`.
  That locomotive-side restore is tighter now too: its tail explicitly re-enters
  `scenario_state_refresh_cached_available_locomotive_rating` `0x00436af0`, which rebuilds one
  cached available-locomotive rating at `[state+0x4cbe]` from the current year plus the strongest
  surviving available locomotive-side rating scalar `[loco+0x20]`, and the tiny query sibling
  `0x00434080` is now bounded as the shell-side clamped read helper over that same cached field,
  with the grounded shell-side reader later bucketing that value against `40/50/70/85/100`. The
  load-side bridge into `[world+0x66b6]` is tighter too: the constructor-side world-entry bring-up
  sweep over the live locomotive pool `0x006ada84` is the pure preseed path, walking every live
  locomotive, resolving its linked era name through `0x00461c80`, and upserting that name into
  `[world+0x66b6]` through `0x004350b0`. The direct `.smp` restore-side branch inside
  `world_load_saved_runtime_state_bundle` `0x00446d40` first clears the collection, reads one
  counted run of fixed `0x41`-byte locomotive-name-plus-dword records from the bundle, inserts
  them directly through collection vtable slot `+0x04`, and only when that restored collection
  stays empty does it fall back to the same full live-locomotive preseed sweep. The
  neighboring named-candidate bridge is now aligned with that same save/load pattern too: the
  scenario-side named candidate-availability table at `[world+0x66b2]` is another counted fixed
  record run, the `.smp` restore path only keeps rows whose names still resolve into the live
  candidate pool, and the later post-load preseed `0x00437737` plus
  `scenario_state_upsert_named_candidate_availability_record_and_refresh_runtime_filters`
  `0x00434f20` mirror that filtered table back into `[candidate+0x7ac]` across the live candidate
  pool. The
  separate era-side runtime collection is tighter now too: global `0x0062ba88` is constructed in
  the same world-load strip through
  `locomotive_era_collection_construct_and_stream_load_tagged_records` `0x0041e170`, which tails
  into
  `locomotive_era_collection_stream_load_tagged_records_import_engine_type_content_and_seed_runtime_sidecars`
  `0x0041d7c0`. That import seam is tighter now too: collection vtable slot `+0x04` dispatches
  into
  `locomotive_era_collection_allocate_entry_import_tagged_record_and_seed_named_sidecar_handles`
  `0x0041de60`, which loads one `Data/EngineTypes/%1.cgo` payload, seeds the nested collection at
  `[entry+0x196]`, and resolves imported named rows against `[0x006d4020+0x429b8]`; collection
  vtable slot `+0x08` later releases that same live record through
  `locomotive_era_collection_remove_entry_by_id_release_nested_sidecars_and_erase` `0x0041ddc0`.
  The immediate post-load sidecar layer is explicit now too:
  `locomotive_era_collection_publish_intro_notice_and_service_current_year_type2_entries`
  `0x0041e010` can publish the one-shot introductory `0xcb/0xcc` pair on the early-year branch,
  then scans the imported era records for current-year matches whose type dword `[entry+0x41]`
  equals `2`, re-enters the company-policy gate `0x0041d550`, and publishes the matching
  locomotive-side notice through `0x004337c0`. The neighboring query helper
  `locomotive_era_collection_find_first_live_entry_matching_type_and_current_year_window`
  `0x0041e100` closes the small search seam above that same imported collection by returning the
  first live entry whose type and `[entry+0x105..+0x109]` year window admit the current scenario
  year.
  Current package-save inspection still finds no mirrored early world-bundle serializer for
  `0x0062ba88`, so the strongest current boundary is that this era family is content-imported
  during world load rather than package-saved beside the neighboring tagged runtime collections.
  `0x00461650` remains grounded instead as the save-side twin of the geographic-label database at
  `0x006ada80`. The live era records themselves are still later queried through `[loco+0x72]` by
  `0x00461c80/0x00461ca0`.
  The two adjacent live runtime roots in that same world-load strip are tighter now too. Global
  `0x0062ba8c` is constructed through
  `structure_candidate_collection_construct_and_stream_load_records_then_refresh_counts`
  `0x0041f4e0`, which tails into the broader tagged import owner
  `structure_candidate_collection_stream_load_records_seed_name_catalogs_and_refresh_filter_sidebands`
  `0x0041ede0` and then reruns the aggregate counter refresh `0x0041e970`; the same family also has
  the in-place reset sibling
  `structure_candidate_collection_release_live_entries_reimport_tagged_records_and_refresh_counts`
  `0x0041f530`, which releases each live entry through vtable slot `+0x08`, clears the three
  built-in named-candidate slots `[candidates+0x88/+0x8a/+0x8c]`, and rebuilds the same imported
  record set plus summary counts. Global `0x006ada84` is constructed one step later through
  `locomotive_collection_construct_and_stream_load_records` `0x00462520`, which tails into
  `locomotive_collection_stream_load_records_link_era_labels_and_refresh_runtime_availability`
  `0x00461f10`; that load owner resolves linked era records from `0x0062ba88`, folds `[era+0xfd]`
  into imported scalar lanes, builds the paired locomotive text rows through string ids `0x1b3`
  and `0x1b4`, stores the live id into `[loco+0x4f]`, and then re-enters
  `locomotive_collection_refresh_runtime_availability_overrides_and_usage_state` `0x00461e00`.
  Current package-save inspection still finds no mirrored early world-bundle serializer for
  `0x006ada84`; the neighboring package path persists only the named locomotive-availability mirror
  at `[world+0x66b6]`, so the strongest current boundary is another load-side content family rather
  than a bundle-saved live runtime collection.
  The same world-load strip now has the adjacent typed roots grounded too: `0x0062be10` is built
  by `company_collection_construct` `0x00429950`, `0x006ceb9c` by
  `profile_collection_construct` `0x00477740`, `0x006cfcbc` by `train_collection_construct`
  `0x004b2340`, `0x006acd34` by
  `runtime_object_collection_construct_vtable_5cae10` `0x00455320`, and `0x0062b244` by
  `support_collection_construct_seed_counters_and_clear_large_sideband` `0x0040aeb0`. That support
  seam is broader than just tagged save/load now too: the constructor seeds the `0x20`-row
  sideband at `[collection+0x90]`, the package path brackets the live collection under
  `0x2af9/0x2afa/0x2afb`, and the same family now has its live goose-side owners grounded too:
  `support_collection_try_spawn_goose_entry_in_primary_counter_lane` `0x0040b0b0`,
  `support_collection_select_or_spawn_goose_entry_id` `0x0040b2d0`, and the release companion
  `support_collection_release_entry_and_decrement_world_type_counters` `0x0040af00`. That closes
  the local late-state bridge from the saved world slab into live support counters and selection
  state instead of leaving `0x4c9a/+0x4c9e/+0x4cb6` as anonymous neighboring fields. The live
  world root itself is now bounded one layer higher too: `0x0062c120` is published by
  `world_runtime_construct_root_and_seed_global_0x62c120` `0x0044cf70`, and its typed release
  sibling on the old-world teardown path is `world_runtime_release_root_payloads_and_collection_storage`
  `0x00449500`. The profile-side load/save header symmetry is explicit in the same band: runtime
  load refreshes `0x006ceb9c` through
  `profile_collection_refresh_tagged_header_counts_from_bundle` `0x00477780`, while package save
  mirrors those same `0x5209/0x520a/0x520b` header lanes through
  `profile_collection_serialize_tagged_header_counts_into_bundle` `0x004777e0`. The same family's
  active-chairman helper strip is explicit now too:
  `profile_collection_count_active_chairman_records` `0x00477820`,
  `profile_collection_get_nth_active_chairman_record` `0x00477860`, and the id-returning
  companion `0x004778c0`. The live company
  and train collections now have the same bounded symmetry: world-load refresh re-enters
  `company_collection_load_tagged_header_counts_and_refresh_live_records_from_bundle` `0x00429af0`,
  while package save mirrors the same `0x61a9/0x61aa/0x61ab` bracket through
  `company_collection_serialize_tagged_header_counts_and_save_live_records_into_bundle`
  `0x00429b90`; the load-side per-company follow-on is
  `company_refresh_post_load_year_clamp_and_runtime_support_fields` `0x004268e0`, while the
  current save-side per-company callback remains the no-op stub `0x00424000`. The live train
  collection has the same bounded symmetry too: world-load refresh re-enters
  `train_collection_load_tagged_header_counts_and_refresh_live_records_from_bundle` `0x004b2700`,
  while package save mirrors the same `0x5209/0x520a/0x520b` bracket plus the per-train record walk
  through `train_collection_serialize_tagged_header_counts_and_save_live_records_into_bundle`
  `0x004b27a0`. The per-train tagged payload seam is explicit now as well: load-side route-list
  refresh goes through `train_refresh_tagged_route_list_payload_from_bundle` `0x004a84b0`, while
  save-side route-list emission goes through `train_serialize_tagged_route_list_payload_into_bundle`
  `0x004a7030`. The adjacent live train collection utility strip is tighter now too: the same
  family owns collection-wide cleanup passes for positive-sign peer-site rows
  `0x004b2820 -> 0x004af610`, negative-sign dword-key rows `0x004b2860 -> 0x004af760`, an
  all-trains clear of runtime dword `[train+0x1a3]` through `0x004b28a0 -> 0x004a7020`, and the
  broader RGB publish pass `0x004b28e0` that turns per-train scalar `0x004a9630` into linked-owner
  triplets through `0x004a8310`. The same RGB forwarder also now has an adjacent boolean-match
  companion: `0x004b29e0` compares train field `[train+0x51]` against one caller-supplied dword,
  maps the resulting `0/1` through `0x0051dfc0`, and republishes the resulting color triplet
  through the same linked-owner chain. The strip is bounded on both sides now too: `0x004b2a50`
  is the all-zero RGB clear sweep through the same forwarder, while the later collection refresh
  hooks reached from `0x00433b80` are `0x004b2a90` for the shell-gated no-op placeholder pass and
  `0x004b2ae0` for the flagged-train `0x004a8220(1,1)` service sweep.
  The
  same rehydrate band also refreshes the live structure-candidate filter and year-visible counts
  through `structure_candidate_collection_refresh_filter_and_year_visible_counts` `0x0041e970`,
  rebuilding the paired per-slot bands at `[candidates+0x246]` and `[candidates+0x16e]` and the
  aggregate counts at `[candidates+0x31a]` and `[candidates+0x242]`; the same late checkpoint also
  re-enters `placed_structure_collection_seed_candidate_subtype2_runtime_latch` `0x00434d40`,
  which seeds runtime dword `[candidate+0x7b0]` across subtype-`2` candidate records before the
  later world-wide reactivation sweep. That checkpoint also now has an explicit shell-facing scalar
  publisher: `world_publish_shell_controller_progress_scalar_from_year_thresholds_or_selector_overrides`
  `0x004354a0` writes one clamped `0..255` value into the current shell presentation object,
  sourcing it either from the shell selector override pairs or from the scenario-side year-threshold
  band rooted at `[state+0x3a/+0x51/+0x55/+0x59/+0x5d/+0x61]`; and just ahead of the later
  scenario-side recipe rebuild, the same band also re-enters
  `scenario_state_ensure_derived_year_threshold_band` `0x00435603`, which only falls into its
  heavier rebuild body while `[state+0x3a] < 2` and otherwise leaves the derived year-threshold
  companion slots `[state+0x51/+0x55/+0x59/+0x5d/+0x61]` unchanged. That heavier body is tighter
  now too: `scenario_state_rebuild_derived_year_threshold_band` `0x004351c0` samples the current
  shell presentation scalar `[controller->presenter+0x15]`, chooses one of three range profiles,
  seeds floor lane `[state+0x61]` to `0xff`, `0xc8`, or `0xe6`, rebuilds the threshold quartet
  `[state+0x51/+0x55/+0x59/+0x5d]` from the current year plus three shell-side companion integers,
  and, when the caller asks for it or the current shell scalar falls outside the rebuilt band,
  immediately republishes one new clamped `0..255` value back through `0x00523d60`. The neighboring late status
  checkpoints around progress ids `0x196` and `0x197` also share one explicit stage gate now:
  `world_query_global_stage_counter_reached_late_reactivation_threshold` `0x00444dc5` compares the
  global counter `0x00620e94` against threshold `0x9901`, and the two current callers use a
  negative result to clear `[world+0x39]` before the broader world and shell reactivation sweep.
  The later reactivation tail is tighter now too: it includes the region-center world-grid flag
  reseed pass
  `0x0044c4b0`, which clears bit `0x10` across the live grid and then marks one representative
  center cell for each class-`0` region through `0x00455f60`; its immediate sibling `0x0044c450`
  then reruns `placed_structure_rebuild_candidate_cargo_service_bitsets` `0x0042c690` across every
  live grid cell. The small secondary-raster premark helper `0x0044c570` is bounded now too: it
  only admits cells whose current raster byte has no bits in mask `0x3e` and whose parallel class
  query `0x00534e10` is false, then rewrites that masked class field to `0x02` and widens the same
  cached bounds-and-count band `[world+0x21c6..+0x21d6]`. The next helper `0x0044ce60` scans the secondary raster at `[world+0x2135]`
  for cells with any bits in mask `0x3e`, caching min/max bounds plus a marked-cell count in
  `[world+0x21c6..+0x21d6]`; the larger sibling `0x0044c670` then consumes those cached bounds to
  normalize the same raster and rebuild one dependent overlay/cache surface before the later
  route-style rebuild, shell-window, and briefing branches. That overlay side is tighter now too:
  after `0x0044c670` resolves scaled surface dimensions through `0x00534c50`, it walks one local
  `3 x 32` sample lattice through the static offset tables at `0x00624b28/0x00624b48`, keeps only
  secondary-raster classes `4..0x0d`, folds several interpolated `0x0051db80` samples into one
  strongest local score, writes packed overlay pixels into the staged surface buffer, and only then
  publishes that staged overlay through `0x00534af0`. The lower helper layer under that overlay
  pass is tighter now too: `0x00534e10` is the reusable secondary-raster class-set
  predicate for classes `1/3/4/5`, `0x00534e50` is the smaller neighboring class-subset predicate
  for `1/4`, `0x00534ec0` covers `2/4/5`, `0x00534f00` covers `3/5`, `0x00534e90` is the
  marked-bit query over the same 3-byte cell family, and the nearby local counter `0x0044bdb0`
  is now bounded as the 8-neighbor count companion for that same `2/4/5` subset, walking the
  shared `0x00624b28/0x00624b48` offset tables and re-entering `0x00534ec0` on each bounded
  neighbor cell. The first caller cluster around `0x0044bf9d..0x0044c37b` therefore reads as a
  secondary-raster neighborhood service band rather than a generic map scan.
  `0x00533e70` and `0x00534160` are the coarser siblings over the overlay table at `[world+0x1685]`:
  the first clears coarse chunk objects across one clamped rectangle, while the second ensures one
  chunk object and seeds local marks through its deeper stamp helper. One level up, the neighboring
  rect owner `0x005374d0` now reads as the shared secondary-overlay refresh pass: it reruns the
  local sample and unsigned-word reducers `0x00536230/0x00536420`, rebuilds the signed vector byte
  planes through `0x00536710`, and then rebuilds the multiscale support surfaces through
  `0x00533890`, whose inner reducers now explicitly target the packed sample-triplet buffer plus
  the float and unsigned-word support planes rooted at the five-entry per-scale families
  `[world+0x15f1..+0x1601]`, `[world+0x1605..+0x1615]`, and `[world+0x1619..+0x1629]`. The setup
  side of that same family is tighter now too:
  `0x005375c0` is the shared ensure-and-seed owner that allocates the sample, sidecar, mask,
  raster, vector, and coarse-cell tables together; crucially, it seeds `[world+0x1655]` with byte
  `0x02` and `[world+0x1659]` with byte `0x01`, which closes the default-fill split. The local
  component-walk owner under the same neighborhood band is tighter now too: `0x0044c200`
  allocates a temporary `width*height` visit bitmap at `0x0062c128`, seeds one class-`2/4/5`
  starting cell, derives an initial direction index through the remap table `0x005ee5d4`, and then
  fans into the deeper recursive walker `0x0044be20`. That deeper walker widens dirty bounds
  `[world+0x21ad..+0x21b9]`, stamps one companion-word orientation lane through `0x005ee5cc`,
  reuses `0x00534ec0` plus `0x0044bdb0` to filter admissible neighbors, tracks temporary
  visitation in `0x0062c128`, and then applies the local byte-1 edge-bit `0x04/0x08` updates
  before returning. So the `0x0044bf9d..0x0044c422` cluster now reads as a real connected-component
  walk plus edge-flag refresh layer over the secondary raster rather than only a loose group of
  local neighbor counters. The adjacent mutation strip is tighter now too: `0x0044dcf0` refreshes
  companion-word bit `0x200` in one local rectangle by checking whether any neighbor belongs to
  class set `2/4/5`, while `0x0044df10` clears three local sidecar byte planes, demotes class `4`
  to `1` and class `5` to `3`, and then reruns that marked-bit refresh over the surrounding
  `+/-1` window. One level up, `0x0044e500` is the rect-wide owner that recomputes byte-1 edge
  bits `0x04/0x08` for class-`2/4/5` cells, dispatches `0x0044df10` on incompatible local
  patterns, and finally consumes the pending global seed pair at `[0x006d1304+0x78/+0x7c]`
  through `0x0044c200`. The shell-side owner of that pending pair is tighter now too:
  `[0x006d1304]` is the live `PaintTerrain.win` shell singleton while the callback-heavy side also
  keeps a second rooted pointer at `0x006d1334`; the tool constructor snapshots the broader
  terrain-paint state into both families while the world-side raster owner still only consumes
  `[0x006d1304+0x78/+0x7c]` as one pending component-seed pair. Its radial sibling `0x0044e7d0`
  is narrower:
  after validating world-space
  coordinates through `0x00414bd0`, it stamps class-`2` marks into the secondary raster by walking
  one clamped bounding box and admitting cells only when the radial falloff helper `0x0051db80`
  stays positive before re-entering `0x0044c570`. The two small support predicates under that same
  strip are now explicit too: `0x00414bd0` is the float grid-bounds gate, and `0x00449df0` is the
  integer rectangle clamp-and-validity helper shared by the local mutation owners. One level up,
  the broader rect-scoped owner is tighter now too:
  `world_rebuild_secondary_raster_derived_surface_and_companion_planes_in_rect` `0x0044e940`
  first reclamps the caller rectangle through `0x00449df0`, reruns the local edge-refresh owner
  `0x0044e500`, lazily ensures one presentation target through
  `0x0051f090/0x00534910/0x00534920/0x00534930`: the first helper resolves the shared
  world-presentation owner, `0x00534910/0x00534920` expose the current staging flag and buffer
  root, and `0x00534930` captures one normalized-bounds rect into that staging buffer before the
  later publish step `0x00534af0`. The same family then resolves scaled target dimensions through
  `0x00534c50` before allocating one temporary `width*height` mask. Its main scan then
  walks the live secondary raster `[world+0x165d]` through the same class predicates
  `0x00534e10/0x00534e50/0x00534f00/0x00534ec0`: class-`1/3/4/5` cells force `0xff` into the four
  sidecar byte planes `[world+0x1631..+0x163d]`, while the broader per-cell pass writes packed
  values into the ensured target through `0x00534730` and also updates nibble lanes at byte offsets
  `+0x2` and `+0x5` inside the same three-byte secondary-raster cell family. After the publish it
  notifies the shell owner at `0x0062be68`, re-enters
  `world_refresh_all_grid_cell_secondary_raster_derived_bits` `0x00449f80` and `0x004881b0`, frees the
  temporary mask, expands the caller rectangle by dirty bounds `[world+0x21ad..+0x21b9]` through
  `0x00536710`, and finally seeds companion byte `[world+0x162d]` with `0xc4` on cells selected
  from mask plane `[world+0x1655]`. So the `0x0044e500 -> 0x0044e940` band is now a real
  derived-surface and companion-plane rebuild family rather than only a loose collection of local
  raster mutations. The local
  evidence now also supports a stronger negative conclusion: unlike `[world+0x1655]`, that second
  mask plane is not part of the actively rebuilt runtime overlay path, and in the grounded local
  corpus it behaves only as a separately seeded, cleared, and persisted sibling plane. One level
  lower, the
  base-plane allocator `0x00532c80` now reads more cleanly too: it is the narrower owner that
  clears `[world+0x15e1]`, optionally applies the current grid dimensions, allocates the base
  float-summary plane `[world+0x1605]`, the four sidecar byte planes `[world+0x1631..+0x163d]`,
  both one-byte mask planes `[world+0x1655/+0x1659]`, and the packed secondary raster
  `[world+0x165d]`, then seeds those planes with the same `0x02/0x01/0x00` default split. The
  load-side owner for those same planes is tighter now too: the constructor thunk `0x0044e910`
  immediately feeds the heavier payload body `0x0044cfb0`, which reads the rooted chunk families
  `0x2ee2/0x2ee3/0x2ef4/0x2ef5/0x2ef6/0x2ee4/0x2ee5/0x2f43/0x2f44`, allocates the core world-grid
  and secondary-raster arrays `[world+0x2129..+0x2141]` plus the route-entry collection
  `0x006cfca8`, initializes every grid-cell record through
  `world_grid_cell_record_refresh_from_bundle_bitmask_and_optional_6byte_list` `0x0042ae50`, and
  only then hands off
  into `world_compute_transport_and_pricing_grid` `0x0044fb70`, the neighboring presentation
  refresh `world_count_secondary_raster_cells_outside_class_set_1_3_4_5_and_store_0x21a9`
  `0x00449f20`, and the shell-mode pulse `0x00484d70`. So the `0x0044e910 -> 0x0044cfb0`
  load side is now bounded as the heavy world-grid and secondary-raster bundle-load body rather
  than just another anonymous constructor tail. One
  level lower on that same post-load seam, the full-grid derived-bit companion is tighter now too:
  `world_refresh_all_grid_cell_secondary_raster_derived_bits` `0x00449f80` walks the live
  `0x1d7`-byte grid-cell records twice, first re-entering
  `world_grid_cell_refresh_bits_0x01_0x02_from_anchored_4x4_secondary_raster_class_counts`
  `0x0042b050` to refresh bits `0x01/0x02` from each cell's anchored `4x4` secondary-raster
  window rooted at `[cell+0xe7/+0xe9]`, then re-entering
  `world_grid_cell_refresh_bit_0x08_from_neighbor_cell_bit_0x01_clear_offsets` `0x0042bc70`
  to refresh bit `0x08` from the fixed neighbor-offset tables `0x00624b28..0x00624b54`.
  That closes the immediate world-grid restore side of this load/save branch instead of leaving the
  last post-load refresh passes as raw helper calls.
  One
  level higher again, the broader world-presentation reinitializer `0x00537e60` now sits above
  that base allocator and the larger support-family ensure path `0x005375c0`: it stores the live
  grid dimensions, hard-resets the whole overlay runtime family through `0x00532590`,
  and that reset strip is no longer opaque either: the immediately preceding local helpers
  `0x00532310..0x00532550` now bound one compact overlay-local state family under the same owner.
  `0x00532310/0x00532360/0x00532370/0x00532380` own the seven-dword companion block
  `[world+0x15b5..+0x15cd]` together with live flag byte `[world+0x15b4]`; `0x005323f0`,
  `0x00532460`, and `0x00532490` are the ensure, publish, and query strip for cached surface root
  `[world+0x478]` using saved dimensions `[world+0x159c/+0x15a0]`; `0x005324e0/0x00532500` are the
  live-flag setters for `[world+0x159b]`; `0x00532510` is the direct setter for mode byte
  `[world+0x159a]`; and `0x00532520/0x00532550` own the four-dword saved dimension quad
  `[world+0x15a4..+0x15b0]`. So the broader `0x00532590` reset really does sit at the base of a
  concrete local cached-surface and companion-block owner family, not just a pile of unrelated
  presentation fields. The reinitializer then
  reinitializes the secondary-overlay family for those dimensions, and then republishes the
  neighboring overlay constants and support owners used by both the world-side reattach branch and
  the `.smp` restore-side presentation rebuild path, including several owners that all funnel
  through the shared static-template slot allocator `0x00532ad0` over the local `0x100` pointer
  band at `[world+0x08]`. Those neighboring owners are tighter now too: `0x00535070` is the small
  primary overlay-surface-or-template setup owner; `0x00535100` is the heavier requested-dimension
  apply and four-slot overlay-surface rebuild owner used by the setup-side regenerate branch and
  the load-side bundle path; while `0x005356e0` and `0x00535890` seed two
  larger static-template slot bands rooted at `[world+0x1568/+0x156c/+0x1574/+0x1578]` and
  `[world+0x1560/+0x1564]` respectively; the remaining heavier sibling `0x00535430` now reads as a
  shared four-slot overlay-surface rebuild owner that resamples one source or fallback descriptor
  into a short local slot strip above `[world+0x155c]`. The immediate helper strip under that same
  family is tighter now too: `0x00534f60` is the small presentation-owner base init above
  `0x00532590`; `0x00534f80` releases one transient surface handle at `[world+0x478]` and clears
  byte `[world+0x159b]`; `0x00532760` releases the current overlay slot chosen by selector
  `[world+0x1558]`; `0x005327a0` clamps two requested surface dimensions down to supported
  power-of-two sizes while also enforcing shell display caps from `[0x006d4024+0x114243/+0x114247]`;
  `0x00532860` is the local twelve-slot stitching pass over the parallel bands rooted at
  `[world+0x08/+0x0c/+0x18]`, copying terminal rows and edge dwords between those sibling slot
  surfaces before finalizing the primary band through `0x00541c10`;
  `0x00532960` is the adjacent paired projection helper that maps two caller counters through the
  current `16x16` and `4x4` rounded grid quanta and writes the resulting coarse offsets back to two
  out-pointers;
  `0x005329e0` maps one `(x,y)` pair into a `1`-based coarse `4x4` overlay region id using the
  current rounded grid dimensions; `0x00532a30` is the direct getter for local dword `[world+0x1554]`,
  which still reads only as the live count or tag for this overlay slot band;
  `0x00532a40` and `0x00532aa0` are the time-selected query helpers over the first and second
  template-seeded slot bands rooted at `[world+0x1568/+0x156c]` and `[world+0x1560/+0x1564]`; and
  `0x00532a90` is the direct getter for trailing fallback slot `[world+0x1578]`. The next adjacent
  owner is tighter now too: `0x00532b30` is the shared release/reset path for the local overlay
  slot band at `[world+0x08]`, with a split release policy keyed by shell flag
  `[0x006d4024+0x11422e]` and a special forced-direct range for slot ids `1..0x10`, after which it
  clears band fields `[world+0x1554/+0x1568/+0x1570/+0x155c/+0x1560/+0x1564]`. The tail of that
  same reinitializer is tighter one level up too: `0x00527ce0` is the broader ensure owner that
  watches current grid extents plus world tag `[world+0x2121]`, re-enters `0x00532860` when those
  cached values change, rebuilds or releases local helper `[this+0x65]`, and then clears the two
  large global scratch planes rooted at `0x008f2520` and `0x00b33530`. The tail of that same
  reinitializer is
  tighter now too: after the larger support-family setup it seeds one seven-entry default overlay
  companion set through `0x005373b0`, whose inner allocator `0x00535950` populates the local
  `0x1b`-entry slot table from the static template rows `0x005dd300..0x005dd378`. The lifecycle
  side is tighter in the same way now: `0x00536044` is the shared teardown owner that frees those same
  three five-entry support families together with both mask planes, the packed secondary raster,
  the vector-byte planes, the local staging buffer, and the neighboring sidecar or coarse-cell
  tables. The remaining base-float lane is tighter too: the larger rebuild owner
  `0x00538360` now clearly writes one base float-summary field into `[world+0x1605]`, clears both
  one-byte mask planes, and then only repopulates the primary mask plane `[world+0x1655]` for the
  qualifying class-`1` interior cells before re-entering `0x00532d90` to normalize that base
  float-summary plane globally and `0x00532f60` to expand positive cells through one caller radius.
  That asymmetry is now enough to close the local semantic edge: `[world+0x1655]` is the actively
  rebuilt primary overlay mask, while `[world+0x1659]` is only the separately seeded and persisted
  secondary mask sibling with no comparably grounded distinct read-side consumer. The only grounded
  getter call to its root accessor `0x00533b60` is the shell staging branch at `0x00525bad`, and
  that branch immediately discards the returned pointer. The bundle side is now explicit too:
  `.smp` save-load treats the two mask planes as separate payloads with chunk ids `0x2cee` for
  `[world+0x1655]` and `0x2d51` for `[world+0x1659]`, while the neighboring `0x2d49/0x2d50`
  branches are the separate packed secondary-raster import lanes rather than alternate consumers
  of the second mask plane. So, in the mapped local code, `0x1659` is best treated as a persisted
  compatibility or seed-state sibling, not as a second actively consumed runtime overlay mask. The
  transport/pricing preview side is tighter now too: `0x00538060` sits directly beneath
  `0x0044faf0`, first seeds one preview handle through `0x00535430` using the short `C_`
  descriptor, temporarily overrides shell globals
  `[0x006d4024+0x11423b/+0x11423f/+0x114254/+0x114255]`, and then loads `%1.tga` through
  `0x0053c1c0 -> 0x00541970`. It clamps that sampled image into the `0x401 x 0x401` range,
  rewrites `[world+0x1605]` plus the mask/raster family `[world+0x1655/+0x1659/+0x165d]` from the
  sampled pixels, optionally re-enters `0x00532d90/0x00532f60`, republishes the seeded preview
  handle through `0x0053c000`, and then re-enters `0x005375c0(1, 0, 0)`. The small shell-global
  owner it also touches is tighter now too: `0x006d401c` is constructed by `0x00538640`,
  `0x005386e0` publishes the primary timed text lane, `0x005387a0` publishes the secondary fixed
  `10000` ms lane, `0x00538810` finds the first registered shell window containing one child
  control id by walking each window through `0x0053f830`, and `0x00538840/0x00538880/0x00538890`
  manage the owner's local `1000`-slot active-token table keyed by child control id. The adjacent
  list strip is tighter too: `0x00538990` is the registered-window virtual-slot-`0` gate that
  stops on the first zero return, `0x005389c0` is the shared unlink helper for the same doubly
  linked list rooted at `[owner+0x00/+0x04]`, `0x00538a60` is the zero-counter gate over
  `[owner+0xc60]`, `0x00538a70` is the matching full reset-and-release body used during bootstrap
  teardown, and `0x00538a10/0x00538a20/0x00538a30/0x00538a40` are the direct getter, setter,
  increment, and clamped decrement helpers for the owner's scalar lanes `[+0xc5c]` and `[+0xc60]`.
  The next shell-runtime strip is tighter now too: `0x005388d0` is the shared `12`-dword
  descriptor dispatcher with the optional override validator at `[owner+0xc75]` and the recursive
  `kind 6 -> 0xb7` rewrite; `0x00538c70` is the prioritized cached-text owner over
  `[owner+0xbd8/+0xbdc/+0xbe0/+0xbe4]` that emits descriptor kind `0xae` through `0x005388d0`;
  `shell_dispatch_synthetic_12_dword_descriptor_from_five_scalars` `0x00538e00` is the five-scalar
  descriptor-synthesis wrapper above that same dispatcher;
  `0x00538e50` is the sorted registered-window insert owner over node key `[node+0x21]`;
  `0x00538ec0` is the refresh sweep over the indexed helper collection rooted at `[owner+0xc69]`;
  and `0x00538f10` is the broader optional-window publish plus blocking descriptor loop used by
  modal launchers and some shell transition paths.
