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)

DONE.md

@@ -156,6 +156,23 @@ Completed task sections moved from `TODO.md`. Sections are moved only when every
 - [x] Add a `V` control that cycles Hollywood Blvd → The Joke Shop → TV Studio and restarts the
   shift (`GameManager._cycle_venue`), with a `hud.venue_switched` string entry.
 
+## 🎨 Visual polish pass (v0.2.0, pre-release graphics)
+
+- [x] Phase-based lighting: per-phase sun direction/energy/color, sky gradient
+      (ProceduralSkyMaterial), and ambient in `GameManager.PHASE_LIGHTING`;
+      applied on phase change and shift start.
+- [x] Street lamps: poles with emissive bulbs + OmniLights on the sidewalk;
+      `WorldBuilder.set_night_mode` switches bulbs/lights on at night.
+- [x] Marquee signage: emissive “STEP LINE” strips + Label3D above the entrance.
+- [x] Street dressing: crosswalk stripes, planters, and low-poly trees.
+- [x] NPC visual variety: per-seed height/brightness variation (deterministic LCG).
+- [x] Denser routine traffic (tourists/performers/influencers/trespassers).
+- [x] `capture_screenshots.gd` now fast-forwards to the LATE phase and captures a
+      night set (lamps + marquee + flashlight cone); README gallery is now 2×3
+      (day + night); six shots regenerated in `docs/screenshots/`.
+- [x] `config/version` → `0.2.0`; `build/` artifacts rebuilt and Linux binary smoke-tested.
+- [x] New world/lighting headless tests (56 total).
+
 ## CI — cache timeout mitigation
 
 - [x] Remove `actions/cache@v4` from the checks job (runner cannot reach GitHub's cache