Adopt the realism pass and refresh screenshots/docs

- add the v2 runtime picks: per-phase skyline panoramas, brick, sidewalk
  pavers, dry/wet asphalt, awning canvas, and their normal maps
- add the realism tooling and evidence: tools/scene_concepts.py, capture_realism.gd,
  concept frames, reports/sheets, and tests
- retune phase lighting/fog/exposure, add sun yaw, brighten the night glow,
  add the flashlight beam mesh, and rebuild the planter/tree assets
- regenerate all eleven staged screenshots from the current build; compare is
  11 good / 0 bad
- finish the visual-alignment closeout in DONE/TODO, update architecture,
  blender-assets, PLAN, and ignore rules (editable Blender sources untracked)
- keep the judge retry and document the verified default judge model

Verification: headless 227/227; Python tooling 86/86; check_screenshots 11/11.

docs/architecture.md

@@ -81,7 +81,7 @@ The player interacts with NPCs, venue entrances, access artifacts, equipment, st
 - `tools/model_pipeline.py` builds and audits the street-prop `.glb` models and packs their colour atlases.
 - `tools/npc_pipeline.py` builds and audits the skinned NPC base model (`assets/models/generated/npc_base.glb`) and its per-slot material maps, with an optional AI fabric override (ADR-0013).
 - `tools/blender_assets.py` builds, renders and audits the Blender asset library (`assets/models/blender/{npc,npc_gear,props}/` + `manifest.json`): NPC character variants that are drop-in for `npc_base`, attach-point gear, and street/venue props. `NpcAvatar` selects variants/gear by role/seed and `WorldBuilder` loads the prop replacements and new street dressing, with procedural fallbacks (see `docs/blender-assets.md`).
-- `tools/scene_concepts.py` generates realism-pass references (`docs/screens/concepts/`), skyline backdrops and surface tiles (raw `assets/textures/ai/v2/raw/` → candidates `assets/textures/ai/game_ready/v2/`) without ever overwriting an image, and scores `src/test/capture_realism.gd` A/B captures against the concepts (`docs/screens/realism/<run>/`).
+- `tools/scene_concepts.py` generates realism-pass references (`docs/screens/concepts/`), skyline backdrops and surface tiles (raw `assets/textures/ai/v2/raw/` → candidates `assets/textures/ai/game_ready/v2/`), promotes the validated ones to the tracked `v2/picks/` that `SurfaceMaterials`/`WorldBuilder` preload, audits them, and scores `src/test/capture_realism.gd` A/B captures (five stages, runtime texture swaps) against the concepts (`docs/screens/realism/<run>/`).
 - `tools/asset_pipeline.py` generates and audits role-aware textures; `tools/screen_designs.py` generates screen references and judges captures.
 
 Confirmed game assets live in `assets/textures/ai/game_ready/` (audited surface, UI, and card textures), `assets/models/generated/` (prop and NPC `.glb` models plus their texture atlases), and `assets/textures/npc/` (NPC material maps and `palette.json`). Development-only outputs — AI concept sheets, Blender sources, raw AI fabrics — are gitignored and regenerated by the tools.