Detailed graphics pass: authored textures, humanoid NPCs, HUD feedback, asset pipeline

- tools/generate_textures.py (deterministic PIL) produces all authored PNGs:
  brick facade, concrete, asphalt, awning, skyline, vignette, HUD icons,
  access-card art (all <=1024px, power-of-two)
- WorldBuilder: textured facade/glass door/sidewalk/asphalt, striped awning
  with 'STEP LINE', generated skyline backdrop planes
- GameManager: soft sun shadows (4-split parallel); guard in 'guard' group
- NPC avatars: humanoid rig (torso/head/limbs) with archetype props (camera,
  delivery box, performer hat, protest sign, tourist backpack), procedural
  walk bob, head-turns-toward-guard attention cue
- HUD: inspection artifact cards, mode icons (flashlight/door/wand),
  per-escalation vignette, body-camera overlay (corner brackets + REC + clock)
- assets/ import convention documented; test_asset_textures_present_and_pow2
  guards the pipeline (57 tests pass)
- README tech stack updated for Gitea Actions + asset pipeline; screenshot
  gallery regenerated (day + night)

MEMORY.md

@@ -51,6 +51,12 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
   street lamps + night mode in WorldBuilder.set_night_mode, marquee Label3D, crosswalk/planters/
   trees, NPC per-seed variation. capture_screenshots.gd shoots day + fast-forwarded LATE night
   (6 shots in docs/screenshots/). Version bumped to 0.2.0; binaries rebuilt.
+- Assets pipeline: `python3 tools/generate_textures.py` produces all authored PNGs under
+  `assets/textures/` (≤1024px, pow2); regenerate after changing the script, then run
+  `godot --headless --import` before tests. 57 headless tests guard the pipeline.
+- Detailed graphics: textured facade/awning/skyline, humanoid NPC rigs + props + walk bob +
+  attention head-turn, inspection artifact cards, mode icons, escalation vignette, body-cam
+  overlay (REC + shift clock). Screenshot set regenerated (`docs/screenshots/`, day + night).
 - NOTE: collaborators occasionally add uncommitted work to this shared tree (e.g. the radio
   easter egg); check `git status` before committing and leave foreign changes untouched unless asked.
 
@@ -72,3 +78,5 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
 ## Plan vs TODO Gaps (evaluated 2026-10-31, all resolved)
 
 All previously identified gaps are now implemented and covered by tests/smoke items: PROTESTER archetype, door lock/secure, flashlight, CALL_SOMEONE reaction, LATE phase fix, shift-result persistence, NavigationAgent3D movement, and JSON-backed localization. Remaining backlog lives in `TODO.md`.
+
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