rrt/docs/rehost-queue.md

# Rehost Queue

Working rule:

- Do not stop after commits.
- After each commit, check this queue and continue.
- Only stop if the queue is empty, the remaining work cannot be advanced by any further non-hook
  work without guessing, or you need approval.
- Before any final response, state which stop condition is true. If none is true, continue.

## Next

- Use the higher-layer probes as the standard entry point for the current blocked frontier instead
  of generic save scans:
  `runtime inspect-periodic-company-service-trace <save.gms>`,
  `runtime inspect-region-service-trace <save.gms>`, and
  `runtime inspect-infrastructure-asset-trace <save.gms>`.
- Follow the new higher-layer probe outputs instead of another blind save scan:
  `runtime inspect-infrastructure-asset-trace <save.gms>` now shows that the `0x38a5`
  infrastructure-asset seam is grounded and the old alias hypothesis is disproved on `q.gms`, so
  the next placed-structure slice should target the consumer mapping above that seam rather than
  more collection discovery; the same trace now also carries atlas-backed candidate consumers
  (`0x0048a1e0`, `0x0048dd50`, `0x00490a3c`, `0x004559d0`, `0x00455870`, `0x00455930`,
  `0x00448a70/0x00493660/0x0048b660`, `0x004133b0`) plus bridge/tunnel/track-cap name-family
  counts, so the next pass can start at those concrete owners instead of the whole
  placed-structure family.
- Rehost or bound the next concrete `Infrastructure` consumer above `0x38a5` instead of treating
  “consumer mapping missing” as a stop: start with the checked-in candidate strip
  `0x0048a1e0`, `0x0048dd50`, `0x00490a3c`, `0x004559d0`, `0x00455870`, `0x00455930`,
  `0x00448a70/0x00493660/0x0048b660`, `0x004133b0`, and narrow that list to the first true
  shellless owner that consumes the side-buffer seam. The infrastructure trace now ranks the
  current best hypothesis as the child attach/rebuild strip
  (`0x0048a1e0`, `0x0048dd50`, `0x00490a3c`), with the serializer/load companions next and the
  route/local-runtime follow-on family explicitly secondary.
- For that top-ranked infrastructure strip, treat the next pass as three exact owner questions
  rather than a general “map the consumer” task: whether the `0x38a5` compact-prefix/name-pair
  groups feed the first-child triplet clone lane, the caller-supplied payload-stem lane, or only a
  later route/local-runtime refresh lane; whether cached primary-child slot `[this+0x248]` is the
  first owner-visible bridge from the side-buffer seam into route-entry rebuild; and which child
  fields or grouped rows absorb the side-buffer payload before `0x00448a70/0x00493660/0x0048b660`
  become relevant.
- Targeted disassembly now tightens that strip further: `0x0048a1e0` clones the first child through
  `0x0052e880/0x0052e720`, destroys the prior child, seeds a literal `Infrastructure` child
  through `0x00455b70` with payload seed `0x005c87a8`, and republishes the two sampled bands
  through `0x0052e8b0/0x00530720` after attaching through `0x005395d0`; the non-clone branch
  attaches through `0x0053a5d0`. So the next unknown is no longer whether this strip owns the
  child/rebuild seam, but which `0x38a5` compact-prefix groups drive the clone-vs-payload choice.
- The outer rebuild owner is tighter now too: `0x0048dcf0` reads a child count plus optional
  primary-child ordinal from the tagged stream through `0x00531150`, zeroes `[this+0x08]`,
  dispatches each fresh child through `0x00455a50 -> vtable slot +0x40`, culls ordinals above `5`,
  and restores cached primary-child slot `[this+0x248]` from the saved ordinal. That means the
  child/rebuild loop is consuming an already-materialized child stream rather than parsing the
  `0x38a5` compact-prefix seam directly.
- The upstream handoff is grounded now too: `0x00493be0` is the tagged collection load owner over
  `0x38a5/0x38a6/0x38a7`, and it feeds each live infrastructure record straight into
  `0x0048dcf0` after restoring one shared owner-local dword into the `0x90/0x94` lane. So the
  remaining infrastructure question is no longer whether `0x38a5` reaches the child-stream restore
  path at all. Direct disassembly now also shows `0x00518140` resolving a non-direct live entry by
  tombstone bitset and then returning the first dword of a `12`-byte row from `[collection+0x3c]`,
  while `0x00518680` loads that non-direct table family before `0x00493be0` starts iterating, and
  `0x00493be0` itself now reads as an ordinal-to-live-id-to-payload-pointer walk through
  `0x00518380(ordinal, 0)` then `0x00518140(live_id)`. So the next infrastructure question is no
  longer “which row owns the payload pointer?”. Direct disassembly of `0x005181f0/0x00518260` now
  also treats those `12`-byte rows as a live-entry directory with
  `(payload pointer, previous live id, next live id)`, so the next infrastructure question is only
  how those payload streams align with the embedded `0x55f1` name-pair groups and compact-prefix
  regimes, and which tagged values inside each payload stream become the child count, optional
  primary-child ordinal, and per-child callback sequence that `0x0048dcf0` consumes. Direct
  disassembly now also shows the shared child payload callback `0x00455fc0` opening
  `0x55f1 -> 0x55f2 -> 0x55f3`, parsing three `0x55f1` strings through `0x00531380`, seeding the
  child through `0x00455b70`, and then dispatching slot `+0x48`; the widened save-side probe
  currently sees `0` third `0x55f1` strings on grounded `q.gms`. That now looks less like a probe
  failure and more like an ordinary fallback path, because direct disassembly of `0x00455b70`
  stores the three payload strings into `[this+0x206/+0x20a/+0x20e]`, defaulting the second lane
  through a fixed literal when absent and defaulting the third lane back to the first string when
  absent. So the next pass should stay focused on payload-stream grouping and tagged value roles,
  not on rediscovering a missing third-string encoding.
- The child loader identity is tighter now too: local `.rdata` at `0x005cfd00` proves the
  `Infrastructure` child vtable uses the shared tagged callback strip directly, with
  `+0x40 = 0x00455fc0`, `+0x44 = 0x004559d0`, `+0x48 = 0x00455870`, and `+0x4c = 0x00455930`.
  Direct disassembly of `0x004559d0` then shows the concrete write-side chain for the child
  payload: write `0x55f1`, serialize string lanes `[this+0x206/+0x20a/+0x20e]`, write `0x55f2`,
  dispatch slot `+0x4c`, run `0x0052ec50`, and close `0x55f3`. So the remaining infrastructure
  frontier is no longer “which slot does `0x00455a40` jump to?”; it is which chooser/seed values
  reach those string lanes and the trailing footer path.
- That source side is narrower now too: direct disassembly shows the paired chooser siblings
  calling `0x00490960` directly beside `0x0048a340/0x0048f4c0/0x00490200`, and `0x00490960`
  copies selector fields into the child object (`[this+0x219]`, `[this+0x251]`, bit `0x20` in
  `[this+0x24c]`, and `[this+0x226]`), allocates a fresh `0x23a` `Infrastructure` child, seeds it
  through `0x00455b70` with caller-supplied stem input plus fixed literal `Infrastructure` at
  `0x005cfd74`, attaches it through `0x005395d0`, seeds position lanes through
  `0x00539530/0x0053a5b0`, and can cache it as primary child in `[this+0x248]`. The remaining
  problem is no longer “where do the child payload lanes come from?” but “which chooser branches
  feed `0x00490960` which caller stem and selector tuple for each grounded save-side class?”.
- The sibling `0x00490200` is tighter now too: it reads the seeded lanes
  `[this+0x206/+0x20a/+0x20e]` back through the live route collection at `0x006cfca8`, compares
  them against the current owner using `[this+0x216/+0x218/+0x201/+0x202]`, and behaves like a
  route/link comparator layered above the same child payload lanes that `0x004559d0` later
  serializes. So the next infrastructure pass should treat `0x00490960` as the source owner and
  `0x00490200` as a consumer of the same seeded lanes, not as separate unexplained seams.
- The smaller helper `0x00490a3c` is narrower now too: it allocates one literal `Infrastructure`
  child, seeds it through `0x00455b70` with caller-provided stem input, attaches it through
  `0x005395d0`, seeds position lanes through `0x00539530/0x0053a5b0`, and optionally caches it as
  the primary child. So the next concrete infrastructure question is which upstream owner
  maps the direct `0x38a5` rows into the child count, primary-child ordinal, and per-child payload
  callbacks consumed by `0x0048dcf0`, and which restored child fields still retain those embedded
  name-pair semantics before route/local-runtime follow-ons take over.
- The save-side `0x38a5` probe is now tighter at the payload-envelope level too: grounded
  `q.gms` shows all `138` embedded `0x55f1` rows already live inside complete
  `0x55f1 -> 0x55f2 -> 0x55f3` envelopes before the next name row, every embedded `0x55f2` chunk
  is the fixed `0x1a` bytes that `0x00455fc0` expects, and the dominant embedded `0x55f3`
  payload-to-next-name span is the short `0x06`-byte form across `72` rows. So the next
  infrastructure pass should stop asking whether the shared tagged callback sequence is present at
  all and instead decode the short `0x55f3` payload role and its relation to the compact-prefix
  regimes and primary-child restore path.
- That short trailing lane is tighter now too: direct disassembly of `0x0052ebd0/0x0052ec50`
  shows the post-`+0x48` helper pair loading and serializing two single-byte lanes that fold into
  bits `0x20` and `0x40` of `[this+0x20]`, and the save-side probe now shows the dominant
  `0x06`-byte rows all carrying the same grounded flag pair `0x00/0x00` on `q.gms`. So the next
  concrete infrastructure question is no longer “is there a short trailing flag lane?”; it is how
  the compact-prefix regimes and those flag-byte pairs feed the child-count / primary-child restore
  state above `0x0048dcf0`.
- The fixed `0x55f2` lane is tighter now too: direct disassembly of `0x00455870/0x00455930` shows
  the `+0x48/+0x4c` strip loading and serializing six `u32` lanes from the fixed `0x1a` chunk,
  forwarding them through `0x00530720` and `0x0052e8b0`. Grounded `q.gms` probes now show every
  embedded `0x55f2` row using the same trailing word `0x0101` while those six dword lanes vary by
  asset row. So the next infrastructure question is no longer whether `0x55f2` is a fixed-format
  child lane; it is which of those two dword triplets correspond to child-count / primary-child
  restore state and which only seed published anchor or position bands.
- That split is tighter now too: direct disassembly of `0x00530720/0x0052e8b0` shows the first
  fixed `0x55f2` triplet landing in `[this+0x1e2/+0x1e6/+0x1ea]` and the second in
  `[this+0x4b/+0x4f/+0x53]`, with the companion setter also forcing bit `0x02`. So the next
  infrastructure question is no longer whether the fixed `0x55f2` row hides the child count or
  primary-child ordinal at all; those outer-header values now have to live outside the fixed row,
  most likely in the surrounding payload-stream header or compact-prefix regime above
  `0x0048dcf0`.
- The outer prelude itself is tighter now too: direct disassembly of `0x0048dcf0` shows it reading
  one `u16` child count through `0x00531150`, zeroing `[this+0x08]`, and conditionally reading one
  saved primary-child byte before the per-child callback loop runs. Grounded `q.gms` bytes now also
  show the first `0x38a6` record starting immediately after the shared owner-local dword with
  `child_count = 1`, `saved_primary_child_byte = 0xff`, and the first child `0x55f1` opening at
  offset `+0x3`. So the next infrastructure question is no longer “what kind of values are we
  looking for above the fixed rows?”; it is the narrower partitioning problem of how the observed
  `0x55f3`-to-next-`0x55f1` gaps divide between the two `0x52ebd0` flag bytes and the next
  record’s `u16 + byte` prelude.
- The widened prelude correlation closes part of that partitioning too: grounded `q.gms` rows with
  a `0x03` post-profile gap now collapse cleanly to the next-record prelude pattern
  `0x0001 / 0xff` across `17/17` rows, while the zero-length class is a separate grounded outlier
  with dominant pattern `0x0055 / 0x00` across `18/18` rows and the `0x06` class remains the only
  large mixed frontier. So the next infrastructure slice should focus on classifying the mixed
  `0x06` rows, not on rediscovering the already-grounded pure-prelude `0x03` rows.
- That `0x06` class is now narrower too: grounded `q.gms` shows the dominant short-span class as
  `BridgeSTWood_Section.3dp / Infrastructure` with compact prefix `0xff000000 / 0x0001 / 0xff`
  across `62/72` rows and dominant prelude candidate `0x0001 / 0xff` across `63/72` rows. So the
  next infrastructure slice should stop treating the `0x06` class as uniformly ambiguous and focus
  on the smaller outlier families inside that class, especially the zero-like `BallastCap`-style
  rows and any remaining non-`0x0001 / 0xff` prelude candidates.
- Those outliers are explicit now too: the remaining `10` short-span rows on grounded `q.gms`
  break into `9` `BallastCapST_Cap.3dp / Infrastructure` rows with compact prefix
  `0xf3010100 / 0x0055 / 0x00` and candidate pattern `0x0055 / 0x00`, plus `1`
  `TrackCapST_Cap.3dp / Infrastructure` row with compact prefix `0xff0000ff / 0x0001 / 0xff`.
  So the next infrastructure slice should target the `BallastCap` outlier family first, not the
  already-dominant bridge-section class.
- The candidate-pattern classes are now explicit across the whole stream too: `0x0055 / 0x00`
  is a pure `BallastCapST_Cap.3dp / Infrastructure` class across `18` rows, always preceded by a
  zero-length prior profile span, while `0x0002 / 0xff` is a pure
  `BridgeSTWood_Section.3dp / Infrastructure` class across `18` rows with dominant prior profile
  span `0x06` (`10` rows). So the next infrastructure pass should split its owner questions:
  treat `0x0055 / 0x00` as a `BallastCap`-specific boundary artifact class, and treat
  `0x0002 / 0xff` as the grounded save-side bridge-specific two-child candidate class above
  `0x0048a1e0/0x0048dcf0`, with the remaining unknown narrowed to the upstream chooser that emits
  that class before the attach/rebuild path runs.
- That upstream chooser is grounded now too as paired siblings: direct disassembly shows
  `0x004a2c80` routing the `DT` family and `0x004a34e0` routing the `ST` family, with both
  repeatedly calling `0x0048a1e0`, branching on `[this+0x226]`, selector bytes
  `[this+0x219]/[this+0x251]`, bit `0x20` in `[this+0x24c]`, and lookup tables `0x621a44..0x621a9c`,
  then routing follow-on through `0x0048a340/0x0048f4c0/0x00490200/0x00490960`. So the remaining
  infrastructure question is no longer “is there an upstream chooser?” but “how do the save-side
  classes select the `DT` versus `ST` chooser sibling, and then which lookup-table families inside
  that sibling map to the grounded `0x0002 / 0xff` bridge class and the `0x0055 / 0x00`
  BallastCap class?”.
- Those lookup tables are decoded now too: `0x621a44/0x621a54` feed `BridgeST` caps/sections,
  `0x621a64` feeds `TunnelST` cap/section variants, `0x621a74/0x621a84` feed `BridgeDT`
  caps/sections, and `0x621a94` feeds `TunnelDT` variants, while fixed literals
  `0x5cb138/0x5cb150` are `BallastCapDT/ST` and `0x5cb168/0x5cb180` are `OverpassDT/ST`. So the
  remaining infrastructure question is no longer table discovery; it is the selector-byte mapping
  from `[this+0x219]/[this+0x251]/[this+0x252]` onto those decoded families and then onto the
  grounded `0x38a5` prefix classes.
- The top-level chooser meaning is grounded now too: within those paired DT/ST siblings,
  `[this+0x226]==1` routes the bridge families, `[this+0x226]==2` routes the tunnel families, and
  `[this+0x226]==3` routes the overpass/ballast family, while bit `0x20` in `[this+0x24c]`
  selects the cap-oriented side over the section-oriented side. So the remaining infrastructure
  selector problem is below that top-level split: the exact `[this+0x219]/[this+0x251]` values
  that choose the decoded family entries and how those values surface in the save-side `0x38a5`
  classes.
- Those material selectors are grounded now too: within the bridge branch, `[this+0x219]`
  selects `steel`, `stone`, `suspension`, or `wood`, with value `2` taking the special
  suspension-cap path through `[this+0x252]`; within the tunnel branch, `[this+0x251]` selects
  `brick` versus `concrete`, while bit `0x20` chooses cap versus section by switching between the
  base and `+0x8` table entry families. So the remaining infrastructure selector problem is no
  longer “what do these bytes mean?” but “how do those already-grounded selector values surface in
  the save-side `0x38a5` classes, especially the `0x0002 / 0xff` bridge class and the
  `0x0055 / 0x00` BallastCap class?”.
- The exact setter seam is grounded now too: direct disassembly of `0x0048a340` shows its dword
  argument writing `[this+0x226]`, its next two byte arguments writing `[this+0x219]` and
  `[this+0x251]`, and its final byte argument toggling bit `0x20` in `[this+0x24c]`. So the
  remaining infrastructure selector problem is no longer about hidden intermediate state; it is
  specifically how those already-grounded setter values are serialized or rebuilt into the
  save-side `0x38a5` prefix classes.
- One selector byte is partly grounded now too: when `[this+0x219]==2`, the chooser jump tables
  stop using the general bridge families and instead route `[this+0x252]` through fixed
  `BridgeDT/BridgeST` suspension-cap literals for `R10`, `L10`, `12`, `14`, `16`, and `18`.
  So the remaining infrastructure selector problem is mostly `[this+0x219]/[this+0x251]` family
  choice plus the exact save-side class mapping for the BallastCap branch.
- The current real-save corpus also narrows the active side further: grounded `q.gms`, `p.gms`,
  `g.gms`, and `nom.gms` only expose `ST`-family side-buffer names, while classic `rt3/` saves in
  this workspace currently expose no `0x38a5` side-buffer seam at all. So the save-driven part of
  the next infrastructure slice should assume it is exercising the `ST` chooser sibling directly,
  with `DT` still grounded statically but not yet exercised by the current save corpus.
- Reconstruct the save-side region record body on top of the newly corrected non-direct tagged
  region seam (`0x5209/0x520a/0x520b`, stride hint `0x06`, `Marker09` record stems) now that the
  `0x55f3` payload is known to be fully consumed by the embedded profile collection on grounded
  real saves: the remaining blocker is no longer a hidden trailing payload tail, but finding the
  separate save-owner seam for the pending bonus lane `[region+0x276]`, completion latch
  `[region+0x302]`, one-shot notice latch `[region+0x316]`, severity/source lane `[region+0x25e]`,
  and any stable region-id or class discriminator that can drive shellless city-connection
  service. The newly grounded queue-node probe for the atlas-backed kind-`7` notice records is a
  negative result on `q.gms`, `p.gms`, and `Autosave.gms`, so the next region pass should not
  assume that the transient `[world+0x66a6]` queue family is persisted in ordinary saves; the
  region trace now also carries the concrete queued/service owners (`0x00422100`, `0x004337c0`,
  `0x00437c00`, `0x004c7520`, `0x004358d0`, `0x00438710`, `0x00420030/0x00420280`,
  `0x0047efe0`) so the next pass can focus on the missing saved latches and stable region id/class
  rather than on rediscovering the outer service family.
- Rehost or bound the next concrete region owner above the missing latches instead of treating the
  absent persisted queue as a stop: start with the checked-in owner strip `0x00422100`,
  `0x004337c0`, `0x00437c00`, `0x004c7520`, `0x004358d0`, `0x00438710`,
  `0x00420030/0x00420280`, `0x0047efe0`, and reduce it to the first true save-owned or rebuild
  owner that can explain `[region+0x25e/+0x276/+0x302/+0x316]` plus a stable region id/class. The
  region trace now ranks the current best hypothesis as the pending bonus service owner
  (`0x004358d0`) plus the peer/linkage strip (`0x00420030/0x00420280`, `0x0047efe0`), with the
  transient producer/queue family explicitly secondary and the queued kind-`7` modal dispatch kept
  as shell-adjacent reference only.
- For that top-ranked region strip, treat the next pass as three exact owner questions too: which
  persisted owner seam restores or rebuilds `[region+0x25e/+0x276/+0x302/+0x316]`, which stable
  region id or class discriminator survives save/load strongly enough to drive `0x004358d0`, and
  how far the grounded city-connection peer/linkage helpers
  (`0x00420030/0x00420280`, `0x0047efe0`) can be reused directly before the transient queued-notice
  family matters again.
- Targeted disassembly now tightens that strip too: `0x004358d0` calls `0x00420030` twice plus
  `0x00420280`, then resolves the linked company through `0x0047efe0`, posts company stat slot `4`
  on success, and stamps `[region+0x302]` or `[region+0x316]` while clearing `[region+0x276]`.
  `0x00420030` itself now reads as the real peer gate over collection `0x006cec20`, combining
  `0x0042b2d0`, the optional company filter through `0x0047efe0`, the station-or-transit gate
  `0x0047fd50`, and the status branch `0x0047de00 -> 0x0040c990`; `0x00420280` is the same scan
  returning the first matching site id. So the remaining unknown is the persisted latch/id seam,
  not the live peer/service logic.
- The checked-in constructor owner `0x00421200`
  `world_region_construct_entry_with_id_class_and_default_marker09_profile_seed` now also grounds
  the initialization side of this family: it clears `[region+0x276]`, `[region+0x302]`,
  `[region+0x316]`, and neighboring cached bands at construction time while seeding
  `[region+0x25a/+0x25e] = 100.0f` and `[region+0x31b] = 1.0f`. That means the remaining queue item
  is specifically post-construction restore or rebuild of the same latches, not their basic field
  identity.
- The next restore-side target is explicit now too: the checked-in function map already grounds
  `0x00421510` as the tagged region-collection load owner that dispatches each live region through
  vtable slot `+0x40`, and `0x0041f5c0` as the per-record load slot that reloads the tagged payload
  through `0x00455fc0` before rebuilding profile collection `[region+0x37f]`. So the next region
  pass should ask whether `[region+0x276/+0x302/+0x316]` are restored directly inside that payload
  load or rebuilt immediately after it, rather than treating “restore seam” as a generic unknown.
- Direct disassembly now closes that callback identity too: `0x0041f590/0x0041f5b0` prove the
  world-region vtable root is `0x005c9a28`, so the `0x00455fc0` dispatch at slot `+0x48` lands on
  `0x00455870` and the serializer sibling at `+0x4c` lands on `0x00455930`. Those two callbacks
  only restore and serialize two triplet-like three-lane scalar bands through
  `0x00531150/0x00531030` plus `0x00530720/0x0052e8b0`; they still do not touch
  `[region+0x276/+0x302/+0x316]`. That means the remaining region restore target is now the later
  owner that rebuilds those latches or the separate tagged body seam that persists them.
- The widened real-save region trace rules out one more false lead too: on grounded saves the
  `0x55f2` fixed-policy chunk keeps all three reserved dwords at `0x00000000` and the trailing word
  at invariant `0x0001`, so that fixed chunk is not currently carrying the missing latch or stable
  region id/class discriminator either.
- Reconstruct the save-side placed-structure collection body on top of the newly grounded
  `0x36b1/0x36b2/0x36b3` header seam so the blocked city-connection / linked-transit branch can
  stop depending on atlas-only placed-structure and local-runtime refresh notes, especially the
  semantics of the now-grounded compact `0x55f3` footer dword/status lane and the newly exposed
  separate tagged side-buffer seam candidates, especially the exact `0x38a5/0x38a6/0x38a7`
  family whose compact `6`-byte header pattern and embedded placed-structure-style `0x55f1`
  name rows now make it the grounded placed-structure dynamic side-buffer owner; the remaining
  blocker is semantic closure of the compact prefix regimes now summarized in real saves as seven
  stable patterns on `q.gms` and their relation to the embedded `0x55f1/0x55f2/0x55f3` row
  subset, especially now that the side-buffer name-pair corpus is proven disjoint from the
  grounded `0x36b1` triplet name-pair corpus on `q.gms`; the next pass should treat `0x38a5` as
  a separate infrastructure-asset owner seam, not a compact alias over the triplet records.
- Extend shellless clock advancement so more periodic-company service branches consume owned
  runtime time state directly instead of only the explicit periodic service command.
- Keep widening selected-year world-owner state only when a full owning reader/rebuild family is
  grounded strongly enough to avoid one-off leaf guesses.

## In Progress

- Widen shellless simulation from explicit service commands toward “advance the runtime clock and
  the simulation-owned services advance with it.”

## Queued

- Rehost additional periodic finance/service branches that still depend on frozen world restore
  fields instead of advanced runtime-owned time state.
- Reduce remaining company/chairman save-native gaps that still block standalone simulation
  quality, especially controller-kind closure and any deeper finance/state fields that still rely
  on conservative defaults.
- Rehost bounded live economy owner state beyond selector/catalog/override surfaces when a
  concrete non-shell-owned seam is grounded.
- Keep tightening shell-owned parity families only when that directly supports later rehosting.

## Blocked

- Full shell/dialog ownership remains intentionally out of scope.
- Any candidate slice that requires guessing rather than rehosting owning state or real
  reader/setter families stays blocked until a better owner seam is grounded.
- Missing owner seams or dispatch mappings are not by themselves a stop condition when a targeted
  static-mapping pass or a higher-layer rehosted trace/evaluator surface can still narrow them
  further without guessing.
- The city-connection announcement / linked-transit roster-maintenance branch is still blocked at
  the record-body level, not the collection-identity level: the runtime now has a corrected
  non-direct tagged region seam, a tagged train header-plus-directory seam, and a tagged
  placed-structure header seam, but it does not yet reconstruct the live region or
  placed-structure record bodies those service owners need.

## Recently Done

- `rrt-runtime` now exposes three higher-layer probe surfaces and matching CLI inspectors:
  `runtime inspect-periodic-company-service-trace <save.gms>`,
  `runtime inspect-region-service-trace <save.gms>`, and
  `runtime inspect-infrastructure-asset-trace <save.gms>`. These reports separate grounded outer
  owner inputs, runnable shellless branches, and explicit missing owner seams instead of leaving
  the current city-connection / linked-transit frontier as an opaque blocker.
- Those same probes now also sharpen the next queue choice on grounded real saves: the periodic
  company outer owner shows annual finance and route-preference override as grounded shellless
  branches while city-connection and linked-transit stay blocked on region/infrastructure owner
  seams; the region trace keeps the queued kind-`7` notice family on the transient side; and the
  infrastructure trace now makes the `0x38a5` consumer-mapping blocker first-class after
  disproving any alias to the `0x36b1` placed-structure triplet corpus.
- The infrastructure trace now also carries one small atlas-backed static-analysis layer above that
  seam: bridge/tunnel/track-cap name-family counts from the real side-buffer corpus plus concrete
  consumer candidates rooted at the `Infrastructure` child attach/rebuild/serializer helpers and
  the later route/local-runtime follow-on owners. That means the next `0x38a5` pass can be
  targeted static mapping instead of another generic scan.
- The same `0x38a5` probe now also exports payload-envelope summaries directly instead of only flat
  name rows: policy/profile tag presence, dominant embedded `0x55f2` and `0x55f3` span lengths,
  and sampled row boundaries. That means the next pass can decode the short embedded `0x55f3`
  payload lane on top of already grounded row boundaries instead of rediscovering the same
  envelopes again.
- That same probe now also exports the grounded short trailing flag-byte pair summary for the
  dominant `0x06`-byte rows, while the infrastructure trace carries the matching
  `0x0052ebd0/0x0052ec50` helper seam. That means the next pass can aim directly at how those
  flags combine with compact-prefix regimes and primary-child restore state instead of treating the
  short lane as anonymous payload.
- That same probe now also exports the fixed `0x55f2` six-dword policy samples and the grounded
  shared trailing word `0x0101` for all embedded rows, while the infrastructure trace carries the
  matching `0x00455870/0x00455930` helper seam. That means the next pass can focus on which of the
  two restored dword triplets actually bridge into child-count / primary-child state instead of
  rediscovering the fixed `0x55f2` row shape.
- The infrastructure trace now also carries the deeper `0x00530720/0x0052e8b0` bridge, so the next
  pass can focus on the outer payload-stream header and compact-prefix regimes instead of revisiting
  the fixed `0x55f2` six-dword row.
- That same trace now also ranks those consumers into explicit hypotheses, so the next
  infrastructure pass should start with the attach/rebuild strip instead of treating all
  candidate owners as equally likely.
- The region trace now also carries the corresponding atlas-backed candidate owner strip above the
  unresolved save latches, so the region frontier is now explicitly “missing persisted owner seam
  for `[region+0x25e/+0x276/+0x302/+0x316]` and stable region id/class,” not “unknown service
  family.”
- That same trace now also ranks those owners into explicit hypotheses, so the next region pass
  should start with the pending bonus service owner and peer/linkage strip rather than the queued
  modal family.
- Save inspection now splits the shared `0x5209/0x520a/0x520b` family correctly: the smaller
  direct `0x1d5` collection is the live train family and now exposes a live-entry directory rooted
  at metadata dword `16`, while the actual region family is the larger non-direct `Marker09`
  collection with live_id/count `0x96/0x91`; the tagged placed-structure header
  (`0x36b1/0x36b2/0x36b3`) remains grounded alongside them.
- That same corrected region seam now also exposes repeated `0x55f1/0x55f2/0x55f3` serialized
  record triplets with len-prefixed names plus fixed policy/profile chunk lengths, so the next
  city-connection pass can target the real record envelope instead of another blind scan.
- The fixed `0x55f2` row inside each region triplet is now decoded structurally as three leading
  `f32` lanes, three reserved `u32` lanes, and a trailing `u16` word, so the next save-region
  slice can focus on the larger `0x55f3` payload where the pending/completion/one-shot latches are
  most likely to live.
- The larger `0x55f3` payload now also exposes an embedded direct profile collection with grounded
  live-id/count headers, fixed `0x22`-byte rows, profile names, and trailing weight scalars, so
  the remaining region work is on the unresolved payload fields above that collection rather than
  on the profile subcollection itself.
- Grounded real saves now also show that the region-side `0x55f3` payload has zero trailing
  padding beyond that embedded profile collection, so the remaining region blocker has shifted
  from “find the hidden tail inside this payload” to “find the separate owner seam that backs the
  runtime latches the city-connection branch still reads.”
- Save inspection now also exports a generic low-tag unclassified collection scan over plausible
  indexed-collection headers, now through a lightweight CLI path that does not require full bundle
  inspection and now filters out candidates nested inside already-grounded company/chairman/train/
  region/placed-structure spans.
- That lightweight scan now also narrows the real save frontier to a much smaller stable candidate
  set across `p.gms`, `q.gms`, and `Autosave.gms`, with the exact `0x38a5/0x38a6/0x38a7` family
  standing out as the strongest current placed-structure dynamic side-buffer candidate.
- The `0x38a5/0x38a6/0x38a7` family now also has a first dedicated parser scaffold in
  `rrt-runtime`: its synthetic regression is grounded, its header shape is checked in, and the
  parser now expects a compact 6-byte prefix plus separator byte before an embedded
  placed-structure-style dual-name row rather than treating the family as anonymous residue.
- That exact `0x38a5/0x38a6/0x38a7` parser is now also wired through a lightweight CLI inspector
  and the normal save company/chairman analysis output, and grounded real saves now prove the
  same seam directly:
  `q.gms` exposes `live_record_count=3865`, prefix `0x0005d368/0x0001/0xff`, and first embedded
  names `TrackCapST_Cap.3dp` / `Infrastructure`; `p.gms` exposes the same structure with
  `live_record_count=2467`.
- That same direct `0x38a5` probe now also samples multiple embedded name rows with their
  preceding compact prefixes, showing that the seam is not a one-off wrapper: grounded `q.gms`
  samples include repeated `TunnelSTBrick_*` names under `Infrastructure` with compact leading
  dwords like `0x000055f3` and `0xff0000ff`, so the next pass can target the semantics of those
  compact prefix patterns instead of hunting the owner seam itself.
- The `0x38a5` probe now also summarizes all embedded compact prefix regimes instead of just the
  first few samples: grounded `q.gms` currently exposes seven stable pattern groups across 138
  embedded rows, with the dominant `0xff000000/0x0001/0xff` group carrying 62 bridge-section
  rows, the `0xff0000ff/0x0001/0xff` and `0xf3010100/0x0055/0x00` groups concentrating cap-like
  rows, and a smaller `0x000055f3/0x0001/0xff` group carrying 17 tunnel-section / cap rows whose
  leading dword matches the embedded placed-structure profile tag directly.
- The save-company/chairman analysis path now also compares that grounded `0x38a5` side-buffer
  name-pair corpus against the grounded `0x36b1` triplet name-pair corpus directly; on `q.gms`
  the overlap is currently zero (`0/138` decoded side-buffer rows and `0/5` unique side-buffer
  name pairs match the 56-triplet corpus), which shifts the remaining placed-structure work away
  from “prove these are aliases” toward “find how the separate infrastructure-asset owner seam is
  consumed by city-connection / linked-transit service.”
- Save inspection now also has a dedicated probe for the atlas-backed region queued-notice node
  shape (`payload seed 0x005c87a8`, kind `7`, zero promotion latch, region id, amount, `-1/-1`
  tails), plus a matching lightweight CLI inspector. Grounded `q.gms`, `p.gms`, and `Autosave.gms`
  all currently return `null`, which is useful negative evidence: the transient region notice
  queue is not obviously persisted in these ordinary saves.
- The placed-structure tagged save stream now also exposes repeated `0x55f1/0x55f2/0x55f3`
  triplets with dual name stems, a fixed five-`f32` policy row, and a compact `0x5dc1...0x5dc2`
  footer carrying one raw `u32` payload lane plus one live `i32` status lane, so the remaining
  placed-structure work is semantic closure of those owned fields rather than envelope discovery.
- That compact placed-structure `i32` footer status lane is now partially grounded as owned
  semantics too: observed non-farm families stay at `-1`, while farm families use nonnegative
  `0..11` buckets that are now exported as farm growth-stage indices instead of opaque raw status
  residue.
- Stepped calendar progression now also refreshes save-world owner time fields, including packed
  year, packed tuple words, absolute counter, and the derived selected-year gap scalar.
- Automatic year-rollover calendar stepping now invokes periodic-boundary service.
- Save-native world locomotive policy owner state now flows through runtime restore state,
  summaries, and keyed world-flag execution for the grounded `All Steam/Diesel/Electric Locos
  Avail.` descriptor strip plus the cached available-locomotive rating.
- The selected-year bucket ladder rooted in `0x00433bd0` is now checked in as a static artifact,
  and runtime restore state now derives both the selected-year bucket scalar and the
  `[world+0x0bde]` economic-tuning mirror from owner-family inputs instead of preserving stale
  load-time residue.
- That same selected-year owner family now also rebuilds the direct bucket trio
  `[world+0x65/+0x69/+0x6d]`, the complement trio `[world+0x71/+0x75/+0x79]`, and the scaled
  companion trio `[world+0x7d/+0x81/+0x85]` from the checked-in `0x00433bd0` artifact instead of
  preserving stale save-time residue.
- The save-native company direct-record seam now also carries the full outer periodic-company
  side-latch trio rooted at `0x0d17/0x0d18/0x0d56`, including the preferred-locomotive
  engine-type chooser byte beside the city-connection and linked-transit finance gates.
- That same side-latch trio now also has a runtime-owned service-state map and summary surface,
  so later periodic company-service work can stop reading those lanes directly from imported
  market/cache residue.
- The periodic-boundary owner now also clears the transient preferred-locomotive side latch every
  cycle and reseeds the finance latches from market state where present, while preserving
  side-latch-only company context when no market projection exists.
- The outer periodic-company seam now also has a first-class runtime reader:
  selected-company summaries and finance readers can resolve the base `[world+0x4c74]`
  route-preference byte, the effective electric-only override fed by `0x0d17`, and the matching
  `1.4x` versus `1.8x` route-quality multiplier through owned periodic-service state instead of
  leaving that bridge in atlas notes.
- That same periodic-company seam now also owns a first-class route-preference apply/restore
  mutation lane: runtime service state tracks the active and last electric override, beginning the
  override rewrites `[world+0x4c74]` to the effective route preference for the selected company
  service pass, and ending the override restores the base world byte instead of leaving the seam as
  a pure reader bridge.
- The same route-preference mutation seam now also carries explicit apply/restore service counters
  through runtime service state and summaries, so later periodic-company branches can assert that
  override activity happened even before the missing city-connection / linked-transit service
  owners are fully rehosted.
- Company cash, confiscation, and major governance effects now write through owner state instead of
  drifting from market/cache readers.
- Company credit rating, prime rate, book value per share, investor confidence, and management
  attitude now refresh from grounded owner-state readers.
- Annual finance service persists structured news events and grounded debt/share flow totals.