Remove the obsolete graphics plan

Delete docs/plan-graphics-v0.6.md and update README, architecture, asset
tooling, Blender docs and MEMORY references. Completed work stays summarized
in ADR-0013, the asset-pipeline architecture and the changelog; the v1.0.0
roadmap owns future graphics work.

MEMORY.md

@@ -23,13 +23,11 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
   head width uses skin vertices weighted to Head in y 1.55–1.81; clothing radius is the cloth
   skirt in y 0.30–0.52 with a pants hip fallback. The command reports per-character gear boxes,
   head-band status and x/radial skirt clearance; `test_blender_assets` covers its shape.
-- Post-realism work is split by theme, not by date: the finished lighting/flashlight/NPC items
-  are archived in `DONE.md`, and `TODO.md` carries three planned workstreams (NPC gear fit,
-  venue geometry + committed gallery, Forward+ desktop preset). New visual work should be added
-  as concrete steps under one of those headings instead of a new "realism" bucket.
+- Post-realism work is split by theme, not by date: finished items are archived in `DONE.md`, and
+  `TODO.md` carries the v1.0.0 gap register and milestone roadmap. New work belongs there, not in
+  a revived historical plan document.
 
-- Graphics v0.6.0 plan (2026-11-01): NPCs move to Blender-authored skinned meshes
-  (`docs/plan-graphics-v0.6.md`, ADR-0013). `tools/npc_pipeline.py` builds
+- Graphics v0.6.0 plan (completed 2026-11-01; ADR-0013): NPCs move to Blender-authored skinned meshes. `tools/npc_pipeline.py` builds
   `assets/models/generated/npc_base.glb`; `NpcAvatar` keeps the procedural `_build_body()`
   fallback. Preserve `Rig/Head`, the limb node names, and the seed-deterministic
   `outfit_for`/`layer_for`/`hand_item_for` helpers. Blender = flatpak 5.2.0 LTS, sandbox cwd
@@ -44,7 +42,7 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
 - Shift length is the scenario's `shift_duration_s` (900 s in all three venues). Tests and the screenshot tool override elapsed time; they do not change the default.
 - RNG: NPC reactions and event scheduling are seedable for deterministic tests.
 
-- **Documentation ownership (2026-11-01):** `docs/architecture.md` §12 now defines the source-of-truth map and consolidation rules. `docs/plan-graphics-v0.6.md` is historical; current work belongs in `TODO.md`. README/development-status/Blender AO/Forward+ stale claims were corrected. The v1.0.0 gap register and 0.8/0.9/0.9.5/1.0 roadmap live in `TODO.md`.
+- **Documentation ownership (2026-11-01):** `docs/architecture.md` §12 defines the source-of-truth map and consolidation rules. Obsolete/historical plan documents are removed rather than kept; current work belongs in `TODO.md`. README/development-status/Blender AO/Forward+ stale claims were corrected. The v1.0.0 gap register and 0.8/0.9/0.9.5/1.0 roadmap live in `TODO.md`.
 - **Vision judge (v0.7.2):** `tools/openrouter_judge.py` reads `/api/v1/models`, filters image-input models with `response_format`, and ranks by advertised prompt/image/completion prices. `--model auto` (default) uses the cheapest (`z-ai/glm-5.3-flash` on 2026-11-01) with fallbacks; explicit `--model`/`GIG_LINE_JUDGE_MODEL` wins. Auth errors abort, provider/model errors fall through. Full screen judge 13/13 match, 0 diff; A/B judge ~$0.006.
 - **Desktop HQ preset (v0.7.1):** `packaging/desktop_hq/override.cfg` switches a
   copied executable to Forward+; `Materials.forward_plus_active()` gates