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.

.gitignore

@@ -66,3 +66,10 @@ assets/models/blender/**/*.png
 assets/models/blender_src/*.blend1
 # Editable Blender sources are developer-only; keep the .gdignore marker tracked.
 assets/models/blender_src/*.blend
+# Realism pass (tools/scene_concepts.py): the candidate pool and per-run captures
+# stay local; the validated picks are tracked under game_ready/v2/picks/ (ADR-0014),
+# and each run commits its report.{json,md} + sheet.jpg. Concept references are
+# committed in docs/screens/concepts/.
+assets/textures/ai/game_ready/v2/*
+!assets/textures/ai/game_ready/v2/picks/
+docs/screens/realism/**/*.png