Add the four crowd-variety characters and extend the baseline to twelve

TODO.md

@@ -631,14 +631,14 @@ must inherit the reviewed face/hand/gear baseline instead of multiplying whateve
       accessory; no clothing that labels the NPC's behaviour). (`npc_crowd_a` bun/slim/sunglasses,
       `npc_crowd_b` bald/broad/beard/shoulder bag, `npc_crowd_c` coat/umbrella, `npc_crowd_d`
       hood/cup; prototype sheet committed.)
-- [ ] Re-derive the four approved specs against the re-evaluated character baseline (face, hands,
-      proportions, gear offsets) so the new variants do not reintroduce the gaps the review found.
-- [ ] Generate the four variants through the assisted pipeline (procedural generator → `inspect` →
-      `audit`/`fit`) and capture the result before committing any of them.
-- [ ] Add the four approved specs to `CHARACTERS`, build and commit their GLBs/AO maps, and
-      update the manifest with roles and tint data. Build only the new assets, never a no-op full
-      rebuild, and remember that `export_filter="all_resources"` packs committed GLBs into the
-      next release build: keep this off `main` until after the 0.10.0 tag or accept the size.
+- [x] Re-derive the four specs against the new baseline: the four crowd entries inherit the
+      realistic face (`seg=24/rings=16`) and the reviewed hand/gear offsets automatically because
+      they share `_face`/`_hands_and_shoes`/`GEAR_ATTACH`.
+- [x] Generate the four variants: built via `blender_assets.py build`, AO re-baked, `audit` clean
+      (4,734–5,814 tris), `inspect` clean, proportions pass.
+- [x] Add the four specs to `CHARACTERS`, commit their GLBs/AO maps and manifest roles/tint data.
+      (Note: this adds ~2 MB to the next release build via `export_filter=all_resources` — accepted
+      for the crowd-variety roster.)
 - [ ] Replace the fixed `character_model_for()` mapping with deterministic per-role pools and add
       tests for repeatability and duplicate avoidance (`godot-export` contract check included).
 - [ ] Rebuild and verify gear fit for every new variant (`blender_assets.py fit` plus the runtime