Tighten atlas seam annotations for transport and load/save

docs/control-loop-atlas/runtime-roots-camera-and-support-families.md

@@ -26,7 +26,7 @@
   helper inside the larger post-load generation pipeline `world_run_post_load_generation_pipeline`
   at `0x004384d0` under the `Seeding Economy...` phase rather than under the ordinary player-facing
   speed buttons. That setup pipeline is now clearer at the progress-banner level too: on the fuller
-  setup path it first runs one preliminary named-candidate availability prepass through `0x00437743`
+  setup path it first runs one preliminary named-candidate availability prepass through `0x00437737`
   before any visible progress banner is posted. One startup-side selector edge is tighter now too:
   `shell_active_mode_run_profile_startup_and_load_dispatch` `0x00438890` reaches an early
   selector-`2` branch at `0x00438a66..0x00438c00` that refreshes one support-family type-`7`
@@ -40,9 +40,10 @@
   `structure_candidate_collection_run_post_load_local_service_setup_phase` `0x0041ea50`, and the conditional region pair
   `world_region_collection_seed_default_regions` `0x00421b60` plus
   `world_region_collection_refresh_neighbor_and_profile_bands` `0x00420f30`. One save-load-side
-  status-stack strip is now tighter too: `0x004422d0/0x00442330` push and pop the same four shell
-  dwords `[0x006cec74+0x140/+0x13c/+0x138/+0x144]` plus startup byte `[0x006cec78+0x4c74]`
-  through the local stack `0x0062be90` with depth `0x0062bedc`, and the paired wrappers
+  status-stack strip is now tighter too: `0x004422d0/0x00442330` push and pop the low bytes of the
+  same four shell lanes `[0x006cec74+0x140/+0x13c/+0x138/+0x144]` plus startup byte
+  `[0x006cec78+0x4c74]` through the local stack `0x0062be90` with depth `0x0062bedc`, and the
+  paired wrappers
   `0x004423a0/0x004423d0` bracket that same band while also servicing the live TrackLay.win and
   StationPlace.win tool objects through `0x0050e070`, `0x00507a50`, `0x0050a530`, and
   `0x0050e1e0`. The live `.smp` serializer uses the higher pair, while `world_entry_transition_and_runtime_bringup`
@@ -1186,13 +1187,13 @@
   it then posts id `321` `Seeding Economy...` for `simulation_run_chunked_fast_forward_burst`
   `0x00437b20`; only after those setup-side gates does the code post id `319`
   `Setting up Players and Companies...`. That `319` lane is no longer just a shell-state placeholder: its
-  earlier hidden prepass is tighter now too: `0x00437743` is the scenario-side named
+  earlier hidden prepass is tighter now too: `0x00437737` is the scenario-side named
   candidate-availability seeding pass over the live candidate pool `0x0062b268`, feeding the
   override collection at `[state+0x66b2]` through `0x00434f20` before any visible banner is posted.
   That grounded write path is narrower than the static file evidence, though: the startup reset
   helper `world_runtime_reset_startup_dispatch_state_bands` `0x004336d0` explicitly clears
   `[state+0x66b2]` before the dispatch path begins, and the current exported write-side callers
-  we can name after that reset are still just the live-pool preseed `0x00437743`, the sibling
+  we can name after that reset are still just the live-pool preseed `0x00437737`, the sibling
   startup lane `0x00436ad7`, and the editor-side `Industry (Overall)` toggle handler
   `0x004cf430` through `0x00434f20`. So while the fixed `0x6a70..0x73c0` candidate-availability
   block is now well grounded as bundled map/save source data, a direct bulk-import path from that
@@ -1479,8 +1480,10 @@
   The editor-side help text cluster around ids `2433..2437` is no longer floating either: current
   grounded map-editor code now has a live economic tuning family beside the chairman-slot panel.
   `map_editor_economic_cost_slider_panel_construct` `0x004cadf0` binds six slider controls through
-  `map_editor_economic_cost_slider_dispatch` `0x004ca980` into the scenario-state float block
-  `[0x006cec78+0x0be2..0x0bf6]`, while the surrounding descriptor table at `0x00611c70..0x00612220`
+  `map_editor_economic_cost_slider_dispatch` `0x004ca980`, which now grounds as the real writer for
+  the scenario-state float block `[0x006cec78+0x0be2..0x0bf6]`: lane `0` uses one dedicated scale
+  divisor, the trailing five lanes share the centered `(value-0xce)` path, and the helper mirrors
+  lane `0` into `[state+0x0bde]`. The surrounding descriptor table at `0x00611c70..0x00612220`
   pairs that wider editor lane with localized fields `Prime Rate`, `Merger Premium`, and `Build
   Stations Cost` through `Steam Engine Cost` plus the comparison or help texts `2433..2437`. The
   broader shell-state master flag at `[0x006cec74+0x68]` still sits above the remaining post-load
@@ -2007,9 +2010,10 @@ Current evidence grounds the shell-controller-backed input and frame path as the
   `.smp` serializer `world_runtime_serialize_smp_bundle` `0x00446240` does the same thing through
   `0x446271` and `0x446d09` around its bundle-write and fixed status-publish span. The exact
   save/load-side status stack under those spans is tighter now too: `0x004422d0/0x00442330` push
-  and pop shell dwords `[0x006cec74+0x140/+0x13c/+0x138/+0x144]` plus startup byte
-  `[0x006cec78+0x4c74]` through `0x0062be90`, while `0x004423a0/0x004423d0` layer the same band
-  under active TrackLay.win and StationPlace.win service. The per-frame tail is
+  and pop the low bytes of shell lanes `[0x006cec74+0x140/+0x13c/+0x138/+0x144]` plus startup byte
+  `[0x006cec78+0x4c74]` through `0x0062be90`, with the restore side sign-extending the first three
+  shell bytes and zero-extending the fourth before rewriting the wider dwords; `0x004423a0/0x004423d0`
+  layer the same band under active TrackLay.win and StationPlace.win service. The per-frame tail is
   tighter now too: `0x0054f5b0` queues one 12-dword shell-input event record into the rotating
   ring at `[input+0x128]`; `0x0054f6a0` and `0x0054f6b0` are the two neighboring fixed-value
   seeders for shared phase scalar `0x00d93850` used by shell-side branches `0x00538b72`,