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).

CHANGELOG.md

@@ -0,0 +1,87 @@
+# Changelog
+
+All notable user-facing changes to Gig Line. The format follows
+[Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and versions use
+Semantic Versioning.
+
+## [Unreleased] — planned 0.6.1
+
+### Added
+
+- Gear-fit checks: `tools/blender_assets.py fit` reports head/skirt clearance,
+  and the headless suite verifies that head and back gear clears the body
+  silhouette.
+- A refreshed Influencer portrait and gallery captures with a before/after
+  report in `docs/screens/realism/2026-11-01-gear/`.
+- An explicit `--portrait-type` override for capturing hooded roles when a
+  scenario spawns one.
+
+### Changed
+
+- Narrowed the sunglasses so they sit inside the face silhouette.
+- Moved the shoulder bag outboard so it clears both the coat and dress skirts.
+- Raised the firefighter helmet so the brim no longer sits on the brow.
+- Portrait captures now turn the subject toward the camera and hide the blue
+  focus overlay, so close-ups show the character rather than the UI.
+- The README now links to focused docs pages for gameplay, architecture, setup,
+  asset tooling, development status and the manual smoke checklist.
+
+### Fixed
+
+- The shoulder bag no longer clips through the coat's skirt.
+- The firefighter helmet no longer cuts into the brow ridge.
+- The portrait subject no longer faces away from the camera.
+- `--portrait-type` is now parsed and applied instead of being ignored.
+
+## [0.6.0] — 2026-11-01
+
+### Added
+
+- Blender-authored character, gear and prop library with baked ambient occlusion.
+- Higher-resolution environment textures with tangent normal maps.
+- Phase-driven emissive details on library props, characters and street dressing.
+- Dedicated README docs for gameplay, architecture, setup, asset tooling,
+  development status and manual smoke testing.
+
+### Changed
+
+- Environment lighting, fog, sun angle and night glow were retuned for the new
+  skyline and surface assets.
+- The flashlight beam is visible at night and the NPC detail pass adds faces,
+  hands and cuffs.
+
+### Fixed
+
+- The body-camera overlay no longer covers the shift status.
+- Selecting a venue releases the menu input lock and recaptures the mouse.
+
+## [0.5.0] — 2026-11-01
+
+### Added
+
+- Articulated NPC characters with layered outfits, hand items, face/hair variety,
+  idle behaviour, reaction symbols, queue offsets and three LOD tiers.
+- Player acceleration/braking, step-up assist, head bob, landing dip,
+  precision-walk feedback and surface-aware footsteps.
+- Remappable keyboard and gamepad controls.
+
+### Changed
+
+- Crowd roles now select deterministic character variants and props.
+
+## [0.4.0] — 2026-11-01
+
+### Added
+
+- Collision and navigation footprints for every street prop.
+- Zoned prop placements with deterministic variants and small clutter.
+
+## [0.3.0] — 2026-10-31
+
+### Added
+
+- Surface-material profiles, ACES tonemapping, glow, aerial fog and phase-based
+  colour grading.
+- Framed facade windows, door trim, curb and lane markings.
+- Generated street-furniture models and the Web export.
+- Aim-free targeting, a focus cone and precision walk.