Visual polish pass (v0.2.0): phase lighting, street lamps, marquee, dressing, night screenshots

- Phase-based lighting: sun direction/energy/color, ProceduralSkyMaterial
  gradient, and ambient per shift phase (GameManager.PHASE_LIGHTING),
  applied on phase transitions and shift start
- WorldBuilder: street lamp poles with emissive bulbs + OmniLights,
  set_night_mode(), glowing STEP LINE marquee (Label3D + emissive bars),
  crosswalk stripes, planters, low-poly street trees
- NPC avatars: per-seed height/brightness variation (deterministic LCG)
- Denser routine traffic probabilities
- capture_screenshots.gd: fast-forward to LATE phase and capture night set;
  README gallery is now 2x3 day+night; docs/screenshots regenerated
- Version bumped to 0.2.0; build/ artifacts rebuilt; Linux binary smoke-tested
- New headless tests for phased lighting config and street dressing (56 total)

MEMORY.md

@@ -47,6 +47,12 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
 - CI cache: `.gitea/workflows/build.yml` no longer uses `actions/cache` (the runner can't reach
   the GitHub cache service; import is fast). `GODOT_SILENCE_ROOT_WARNING=1` set on jobs.
   Logs live in `.gitea/logs/` after each run.
+- Visual polish (v0.2.0): phase lighting (GameManager.PHASE_LIGHTING + ProceduralSkyMaterial),
+  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.
+- 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.
 
 ## Known Issues / Notes