Author the missing scenario content from the PLAN lists

Joke Shop
- Reservation list without ID (guest list valid, ID missing) — denied.
- Borrowed/mismatched ID (ID valid but mismatched) — denied.
- Guest who refuses the wand screen: new `refuses_screening` event flag, copied
  onto NPCController, handled in _toggle_wand_screening (logs wand.refused, records
  a wand_refused event, small prop hit, panel stays closed).
- Late arrival during the performance (ID + ticket, "arrive" intent).

Studio
- Filming-boundary event and a later repeat, both using the new `film_boundary`
  intent which maps to `steps_end` so the influencer stands past the posted line.
- Celebrity arrival now pulls in a small crowd via a new `extra_spawns` event field
  (two tourists + an influencer), spawned through the normal path.

Building
- Filming-boundary event whose hint points at the body camera and request-reason
  verbs, plus an unclear-intent event that hints at asking for a reason.

Engine support
- Events may carry `hint` (string key logged on spawn), `extra_spawns`, and
  `refuses_screening`; 9 new localized hint strings.

Tests/docs
- Headless suite 139 -> 149 (test_scenario_content.gd) and a new
  smoke_scenario_content.gd that spawns the refusal and celebrity events through the
  real signal path.
- README, TODO section moved to DONE, MEMORY. Version 0.2.13.

MEMORY.md

@@ -21,8 +21,8 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
   Windowed control smoke: `godot --path . --script res://src/test/smoke_focus_radial.gd` → exit 0.
 - `main` is in sync with origin. **v0.2.2** tags the session-shell + world-follow-up commit;
   CI builds the portable binaries, NSIS installer, and AppImage on the tag push.
-- Next work: `TODO.md` scenario content gaps (Joke Shop / Studio / Building events), then the
-  remaining polish and tooling items.
+- Next work: the remaining TODO sections — distribution host setting (`REQUIRE_SIGNIN_VIEW`),
+  open polish (`Strings.fmt` placeholders), the vision-model screenshot judge, and editor tooling.
 - Do not re-open `override_access`. Do not bind wand to `W`. Do not remove the radio easter egg.
 
 ## Current State
@@ -95,6 +95,12 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
   `_begin_incident()` now starts one per focused NPC (`has_open_incident()` guard), verbs call
   `_ensure_incident()`, and `ShiftCoordinator._finish_shift()` closes leftovers as `unresolved`
   before building the review.
+- **Authored scenario content (2026-10-31):** events can now carry `hint` (a string key logged
+  when the avatar spawns), `extra_spawns` (celebrity arrivals pull in tourists/influencers via
+  `_spawn_npc` with `kind: routine`), and `refuses_screening` (copied to
+  `NPCController.refuses_screening`; `_toggle_wand_screening` logs `wand.refused`, records a
+  `wand_refused` event, applies a small prop hit, and does not open the panel). `film_boundary`
+  is a new intent that maps to `steps_end` so the influencer stands past the posted line.
 - **Accessibility (2026-10-31):** escalation text is `"<name>  [###--] L3/5"` via
   `Hud.escalation_meter(level)` (pure, tested) so the cue survives grayscale. HUD font scale uses
   `add_theme_font_size_override` on the core labels (`set_font_scale`), **not** `Control.scale`,