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/smoke-checklist.md

@@ -47,3 +47,4 @@
 45. Esc and right-click close only the top panel (Help, Settings, Pause, Review, Radio, timeline, inspection/wand, action wheel); Settings opened from the venue menu returns to the menu, Help no longer opens Pause behind it, and closing a modal recaptures the mouse without leaving the guard frozen.
 46. At 0.75× and 1.75× HUD font scale, long target names stay inside the target chip, the chip grows/caps correctly, and long button labels ellipsize instead of pushing panels off-screen.
 47. Reset campaign and Replay tutorial both ask for confirmation; a second click reuses the open dialog, Cancel does nothing, and OK fires once. Emergency send requires the full hold, sends exactly once, and does not send again on release.
+48. UI copy/button sweep: every panel uses the canonical admit/refuse, warning/blocking, assistance/emergency and body-camera terms; the start menu, pause, settings, Help, inspection, wand, radio, wheel, timeline and shift review all show readable hover/focus/pressed/disabled states; Tab/arrow focus wraps without landing on hidden or disabled actions; Esc/right-click closes only the top panel; and destructive reset/replay plus emergency send still require their confirmation or hold.