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/ui-copy.md

@@ -196,9 +196,34 @@ strings and the maximum supported HUD scale.
 `smoke_timeline.gd` covers review → timeline → review. These are end-to-end
 scene smokes, not just panel-unit tests.
 
+## Visual coverage
+
+`src/test/capture_ui_states.gd` completes the screen-design catalogue by staging
+the states that the scene captures did not cover. The gallery now has one
+deterministic current-build frame for every reference:
+
+| State | Capture | Design reference |
+| --- | --- | --- |
+| Start / venue menu | `14-start-menu.png` | `start_menu.png` |
+| Pause | `15-pause-overlay.png` | `pause_overlay.png` |
+| Settings | `16-settings-panel.png` | `settings_panel.png` |
+| Shift review | `17-shift-review.png` | `shift_review.png` |
+| Emergency radio | `18-emergency-radio.png` | `emergency_radio.png` |
+| Action wheel | `19-radial-menu.png` | `radial_menu.png` |
+| Crowd panic | `20-crowd-panic.png` | `crowd_panic.png` |
+| Responder arrival | `21-responder-arrival.png` | `responder_arrival.png` |
+
+The crowd-panic frame is taken 70 frames after the panic event so the staged
+group is visibly displaced from the steps toward the street; the responder is
+parked on the approach with the door locked so the arrival/secure state is
+readable. Both are presentation staging, not gameplay changes. `compare`
+reports **21 good / 0 bad** and the automatic judge **21/21 match, 0 diff**.
+The gallery is regenerated by `tools/check_screenshots.sh`.
+
 ## Remaining audit work
 
 - Player-facing labels are now routed through `content/strings.en.json`; numeric
   values, empty-state clears and debug-only text remain in code by design.
 - Focus/hover/pressed/disabled states and keyboard/gamepad rings are recorded above.
-- Capture every dialog/button state and run `screen_designs.py compare` plus the pinned judge.
+- Pseudo-locale layout and a translator workflow remain scheduled for the
+  localization milestone, not this UI pass.