Standardize button labels and document UI states

Finish the button-label audit with a surface-by-surface table, clarify Quit
game vs Quit to menu, rename Apply to Apply settings, and use string-table
keys for the new labels. Extend the smoke checklist with UI copy/button checks.
Headless 250/250, docs check OK.

docs/ui-copy.md

@@ -31,12 +31,45 @@ Status: audit in progress for the 0.9.2 UI polish patch.
 - **Return to menu** — leave the review to the venue menu (it does not start a new shift by itself).
 - **Send request** — non-emergency assistance; **Send emergency** — emergency call.
 
+## Button labels and states
+
+| Surface | Label | Behavior | State audit |
+| --- | --- | --- | --- |
+| Start menu | Continue shift — <venue> | Resume/advance campaign | Hidden when complete; venue-specific |
+| Start menu | Venue rows | Start free-play/campaign venue | Hover/focus/pressed styled |
+| Start menu | Help | Open Help overlay | Standard button |
+| Start menu | Settings | Open Settings | Standard button |
+| Start menu | Quit game | Exit application | Destructive; label clarifies scope |
+| Tutorial | F1 skip tutorial | Skip lesson | Keyboard only, non-blocking |
+| Action wheel | Stop/Look/Point/No/Ask/Inspect/Wand/Warn/Block/Reason/Recognize/Radio | Choose verb | Hover/selection highlight |
+| Inspection | A = admit · D = refuse entry | Access decision | Keyboard hints, policy text |
+| Wand | A = admit · D = refuse entry | Screening decision | Keyboard hints, item/alert text |
+| Radio | Send request | Submit assistance | Normal click |
+| Radio | Send emergency | Submit emergency | Hold-to-confirm; Cancel aborts |
+| Radio | Cancel | Close form | Standard button |
+| Pause | Resume | Resume shift | Default focus |
+| Pause | Restart shift | Restart current shift | Standard button |
+| Pause | Settings | Open Settings | Standard button |
+| Pause | Quit to menu | Return to venue menu | Standard button |
+| Settings | Apply settings | Persist settings | Standard button |
+| Settings | Cancel | Discard edits | Standard button |
+| Settings | Replay tutorial | Clear tutorial flags and restart Hollywood | Standard button |
+| Settings | Reset campaign | Confirmed campaign reset | Confirmation dialog |
+| Help | Close | Close overlay | Standard button |
+| Review | Continue campaign | Start next venue | Hidden when campaign complete |
+| Review | Body camera timeline | Open event timeline | Standard button |
+| Review | Return to menu | Return to venue menu | Standard button |
+| Review | Quit game | Exit application | Standard button |
+| Timeline | Previous / Next / Close | Step/close evidence | Standard buttons |
+
 ## Button/label issues found
 
 - HUD inspection and wand used “allow/deny” versus “admit/refuse”; both now use **A = admit · D = refuse entry**.
 - Shift review’s old “Run another shift” actually returned to the menu; renamed **Return to menu**.
 - Radio emergency action used all-caps while assistance used sentence case; both are now sentence case, with the warning in the panel title/hold hint.
 - Normal radio send was previously wired only to the emergency hold handlers; fixed in 0.8.1 and covered by `test_radio_panel.gd`.
+- “Quit” was ambiguous between menu and application exit; both application-exit buttons now read **Quit game**.
+- Settings “Apply” was made verb+object as **Apply settings**.
 
 ## Remaining audit work