Close the 0.9.3 UI polish milestone

Add deterministic captures 14-21 for the remaining screen-design states, fix the panel/button layout issues they exposed, and record 21/21 compare and judge results. Bump the source to 0.9.3 and move the completed milestone to DONE.md.

docs/asset-tooling.md

@@ -261,6 +261,9 @@ python3 tools/screen_designs.py generate --draft --only wand --force
 # (requires OPENROUTER_API_KEY)
 python3 tools/screen_designs.py generate
 
+# UI-state gallery (menu, pause, settings, review, radio, wheel, crowd, responder)
+godot --path . --script res://src/test/capture_ui_states.gd -- --out=res://docs/screenshots
+
 # Prop gallery (studio line-up) for close-range prop checks
 godot --path . --script res://src/test/capture_prop_gallery.gd
 
@@ -276,12 +279,11 @@ python3 tools/screen_designs.py judge --only 03-   # one capture
 python3 tools/screen_designs.py judge --dry-run    # build requests, no network
 ```
 
-The catalogue covers 21 screens: the eleven README captures plus the start menu,
-pause overlay, settings, shift review, radial menu, emergency radio, wand
-screening, Joke Shop queue, TV Studio arrival, crowd panic, responder arrival,
-body-camera timeline, and the escalation HUD. All 21 have an AI reference in
-`assets/images/ui/` (snapshot in `docs/screens/designs/`); the eleven screens with
-staged captures are also compared or judged against the running game.
+The catalogue covers 21 screens: the thirteen scene captures plus the start menu,
+pause overlay, settings, shift review, radial menu, emergency radio, crowd panic,
+and responder arrival. All 21 have an AI reference in `assets/images/ui/`
+(snapshot in `docs/screens/designs/`) and a committed capture, so every entry is
+compared or judged against the running game.
 
 `compare` flags gross drift: wrong aspect ratio, undersized frame, near-blank
 frame, and large layout/palette/detail distance. It is a regression gate, not a
@@ -295,8 +297,8 @@ Verdicts are classed as `match`, `review` (a mismatch below `--fail-confidence`,
 default 0.6 — expected when a concept mockup is more stylised than the game), or
 `diff` (a confident mismatch, which exits non-zero). Regenerate the designs after changing screen layout, then re-run
 `compare` after regenerating the game screenshots with
-`src/test/capture_screenshots.gd`.
+`src/test/capture_screenshots.gd` and `src/test/capture_ui_states.gd`.
 
 For a one-command drift check, run `tools/check_screenshots.sh`. It renders the
-staged captures and prop gallery into `docs/screenshots/` (using `xvfb-run` when
-no display is available) and then runs `screen_designs.py compare`.
+scene captures, UI-state captures and prop gallery into `docs/screenshots/` (using
+`xvfb-run` when no display is available) and then runs `screen_designs.py compare`.