CLAUDE.md: document 5813aeb6 through 0344418a work (2026-07-23)

- hsh/ BMP canonical renames (MFD + Mechs, commit 5813aeb6)
- RookieMission configurable defaults via options.ini (MW4Shell.cpp + ConLobbyMission.script, 5813aeb6)
- Mechlab turn rate label correction (StringResource.rc, 5813aeb6)
- BTFrstrm design docs: MechDependencyTree.docx + Special_Zones.docx (840bc96c)
- mech_loadouts.md: MechEditor data sources, field conversions, hsh naming reference (0344418a)

CLAUDE.md

@@ -864,6 +864,49 @@ Changes from Buddy 'Highlight' Taylor (MCHL), merged manually:
 `ConLobby.script`: launch guard `nTempPlayerCount > 16` raised to `> 17` so the cameraship
 connection doesn't trigger "Too many player/bots".
 
+### hsh/ BMP canonical renames (5813aeb6, 2026-07-23)
+All `hsh/MFD/*.bmp` and `hsh/Mechs/*.bmp` filenames reconciled against the canonical stems
+expected by game code. The engine loads MFD images via `huddamage.cpp` `texturename[]` array
+(lowercase, no spaces) and Mechs portraits via `GetLocString` DNL strings (mixed-case with
+spaces). Any mismatch = silently missing image at runtime.
+Key renames:
+- `hsh/MFD/assassinii.bmp` → `assassin2.bmp` (matches `texturename[]` canonical)
+- `hsh/Mechs/battlemasteriic.bmp` → `battlemaster iic.bmp`
+- `hsh/Mechs/mad cat mk.ii.bmp` → `mad cat mkii.bmp`
+- `hsh/Mechs/behemoth ii.bmp` added (was absent)
+Most other files in both directories are LFS pointer updates only (content unchanged).
+
+### RookieMission configurable defaults via options.ini (5813aeb6, 2026-07-23)
+CTCL (console) arcade mode has a "Rookie Mission" quick-launch that previously hardcoded all
+game params. Now all 13 params are overridable from an `[RookieMission]` section in
+`options.ini` (read by `CTCL_SetCDSP` at startup):
+- `MW4Shell.cpp`: added 14 `g_` globals (`g_szRookieMission`, `g_nRookieGameType`, and 12
+  numeric params); registered as `gosScript_RegisterVariable` in `StartUp`/`ShutDown`;
+  `CTCL_SetCDSP` reads the `[RookieMission]` page via `NotationFile` and populates them.
+  Defaults: `"ScarabStronghold - Attrition"`, GameType=2 (Attrition), UnlimitedAmmo=1, all
+  others zero. `g_nRookieTimeLimit=-1` means "use the server's current time setting".
+- `ConLobbyMission.script`: all hardcoded values in `MAIL_SET_ROOKIE_MISSION` handler replaced
+  with `$$g_szRookieMission$$` / `$$g_nRookieXxx$$` references.
+- Requires rebuild: `MW4.exe` (Release + Profile).
+
+### Mechlab turn rate label (5813aeb6, 2026-07-23)
+`StringResource.rc` `IDS_ML_CH_TURNRATE`: "Turn Rate (Degrees/Sec.):" →
+"Turn Rate (Top Speed Rad/Sec):" to match the actual `.data` field semantics
+(`TopSpeedTurnRate` is in rad/s at top speed, not deg/s).
+Requires rebuild: `ScriptStrings.dll`.
+
+### BTFrstrm design documentation (840bc96c, 2026-07-23)
+Two Word documents added to `BTFrstrm/`:
+- `MechDependencyTree.docx` — dependency relationships between mech chassis/variants.
+- `Special_Zones.docx` — documentation of special zone types used in maps/missions.
+
+### mech_loadouts.md: MechEditor data model (0344418a, 2026-07-23)
+`BTFrstrm/mech_loadouts.md` extended with a full reference section documenting the
+MechEditor web app (`/home/rich/Repositories/MechEditor/mech_editor.py`, localhost:8765):
+every `.data`/`.instance`/`.subsystems` field parsed, conversions performed (m/s ↔ kph,
+rad/s ↔ deg/s), and `hsh/` naming rules for MFD/Mechs/HUD/Radar images. Canonical
+reference for future mech data work.
+
 ## Next steps (proposed)
 - [x] ~~Windowed 3D viewport on Win11~~ — DONE via DDrawCompat (see STEP 8 viewport section).
 - [ ] (Optional) Curate remaining WIP content as features are exercised (editor loads dev `Content\`).