Document the gear-fit pass and add the changelog

Create CHANGELOG.md with the post-0.6.0 gear-fit entries and backfill the
recent release history. Update the implemented-features list, asset-tooling
notes, README links and verification counts (headless 229, Python 87).

README.md

@@ -36,8 +36,9 @@ The central design goal is simple:
 > `REQUIRE_SIGNIN_VIEW` was disabled on 2026-10-31.
 >
 > **Latest: v0.6.0** — Blender-authored character/gear/prop library with baked AO, higher-resolution environment textures, and phase-driven library props.
-> `main` also contains the post-v0.6.0 realism and visual-alignment pass (v2 skylines/textures,
-> UI mockup art, flashlight beam, HUD fixes); the next release will package it.
+> `main` also contains the post-v0.6.0 realism, visual-alignment and gear-fit passes
+> (v2 skylines/textures, UI mockup art, flashlight beam, fitted NPC gear, HUD fixes);
+> the next release will package them.
 > Releases are built automatically when a `vX.Y.Z` tag is pushed
 > (see [`docs/RELEASING.md`](docs/RELEASING.md)); manual builds use
 > `./tools/build_releases.sh`. Installer/AppImage packaging runs in the same pipeline
@@ -103,6 +104,7 @@ Full setup, every run/test/smoke command, and the controls table are in
 - [`TODO.md`](TODO.md) — Active checkbox task list.
 - [`DONE.md`](DONE.md) — Completed task sections.
 - [`MEMORY.md`](MEMORY.md) — Persistent session notes.
+- [`CHANGELOG.md`](CHANGELOG.md) — User-facing changes by version.
 - [`docs/architecture.md`](docs/architecture.md) — arc42-style architecture documentation.
 - [`docs/gameplay.md`](docs/gameplay.md) — Gameplay systems, venues, and the escalation model.
 - [`docs/asset-tooling.md`](docs/asset-tooling.md) — Asset pipelines, model tools, and screenshot gates.
@@ -116,8 +118,8 @@ Full setup, every run/test/smoke command, and the controls table are in
 ## Development Status
 
 v0.6.0 shipped (Blender character/gear/prop library, baked AO, environment
-lift); the realism and visual-alignment pass is adopted on `main` and packages
-in the next release. See
+lift); the realism, visual-alignment and gear-fit passes are adopted on `main`
+and package in the next release. See
 [`docs/development-status.md`](docs/development-status.md) for the full
 implemented list and [`TODO.md`](TODO.md) for what's next. Manual verification
 uses the [`docs/smoke-checklist.md`](docs/smoke-checklist.md).