Mitigate CI cache timeouts and wire venue door-staff dialogue

- Drop actions/cache@v4 from the checks job: the Gitea runner cannot reach
  GitHub's cache service (/twirp/...CacheService timeouts, ~2min retries);
  Godot import is fast enough without it. Add GODOT_SILENCE_ROOT_WARNING=1.
- Document the cache situation and re-enable path in docs/RELEASING.md
- VenueScenario.door_staff_line(context, rng): seeded-random venue lines
- GameManager logs id/ticket/wand-check, refusal, and prohibited-item lines
  from the venue scenario (Joke Shop flavor) during inspection/screening
- Test coverage: all Joke Shop contexts, unknown contexts, empty venues,
  deterministic seeded picks (54 tests pass)

DONE.md

@@ -156,6 +156,16 @@ Completed task sections moved from `TODO.md`. Sections are moved only when every
 - [x] Add a `V` control that cycles Hollywood Blvd → The Joke Shop → TV Studio and restarts the
   shift (`GameManager._cycle_venue`), with a `hud.venue_switched` string entry.
 
+## Gameplay — Venue door-staff dialogue
+
+- [x] Add `VenueScenario.door_staff_line(context, rng)` picking a seeded-random line from
+  `door_staff_lines` (empty for unknown contexts/venues).
+- [x] Wire `GameManager` to log venue lines: id/ticket check line when inspection opens,
+  wand-check line when screening starts, prohibited-item line on correct wand refusal,
+  and refusal line on denied entry (The Joke Shop flavor only).
+- [x] Add a headless test covering all Joke Shop contexts, unknown contexts, empty venues,
+  and deterministic seeded picks.
+
 ## Core Simulation — NPC Perception
 
 - [x] Implement a perception pass so NPCs react to the guard's gestures and proximity.