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)

MEMORY.md

@@ -42,6 +42,11 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
   A repo secret `GITEA_TOKEN` is required for tag releases. The old `.github/workflows/ci.yml` was
   removed so hosts scanning both paths do not double-run.
 - Venue cycling: `V` switches Hollywood Blvd → The Joke Shop → TV Studio and restarts the shift.
+- Venue door-staff dialogue: `VenueScenario.door_staff_line(context, rng)` and GameManager logging
+  (id/ticket/wand-check, refusal, prohibited-item) — Joke Shop flavor.
+- CI cache: `.gitea/workflows/build.yml` no longer uses `actions/cache` (the runner can't reach
+  the GitHub cache service; import is fast). `GODOT_SILENCE_ROOT_WARNING=1` set on jobs.
+  Logs live in `.gitea/logs/` after each run.
 
 ## Known Issues / Notes