Add PLAN verbs and fix dead incident recording

Verbs (PLAN levels 1-3)
- Eye contact: own Level 1 radial slice, logged as "eye contact".
- Recognition is a player decision: "Recognize" sets NPCController.player_recognized,
  writes access evidence, and GameManager only then appends a RECOGNITION artifact.
  It is no longer implied by NPC type.
- Body camera: real flag (off by default) driving the REC overlay; B toggles it and
  a formal warning arms it automatically, writing a body_camera incident event.
- Blocking stations the guard 0.9 m from the person toward the entrance and turns
  to face them, instead of only emitting the escalation level.
- Request reason: Level 3 ask answered from the NPC's seeded dialogue_lines.
- Radial grows to 12 slices (174 px outer radius, centered labels).

Incident recording fix
- IncidentRecorder.start_incident() was never called, so add_event /
  add_access_evidence / add_escalation silently no-opped and the shift review
  always reported zero incidents. Incidents now open on focus (guarded by
  has_open_incident), verbs call _ensure_incident, and ShiftCoordinator closes
  leftovers as "unresolved" before building the review.

Copy and docs
- 9 new string keys (eye contact, body camera, recognition, reason, station).
- README controls, 26-step smoke checklist, test count, status lists.
- TODO section moved to DONE; MEMORY records the verb design and the recorder bug.

Verification: headless 98/98, smoke_plan_verbs.gd + smoke_session_shell.gd +
windowed smoke_focus_radial.gd all pass. Version bumped to 0.2.3.

src/core/npc_controller.gd

@@ -34,6 +34,11 @@ var guard_noticed := false
 
 ## Whether this NPC has passed the handheld wand screening (The Joke Shop).
 var screened := false
+## Whether the guard has declared they recognize this person (a player decision
+## recorded as evidence, PLAN.md: Authorized Access).
+var player_recognized := false
+## Last reply the NPC gave when asked for their reason for entry.
+var last_reason_reply := ""
 ## Event-level access payload (`has_id`, `has_ticket`, statuses). Empty means
 ## venue/type defaults from AccessLoadout.
 var access_override: Dictionary = {}
@@ -150,6 +155,16 @@ func tick_return(delta: float) -> bool:
 func decide_leave() -> bool:
 	return leave_requested
 
+## Level 3 ask: request the person's reason for entry (PLAN.md). Pure and
+## headless-testable; returns the line this NPC answers with ("" if silent).
+func request_reason() -> String:
+	var lines: Array[String] = profile.dialogue_lines if profile else []
+	if lines.is_empty():
+		last_reason_reply = ""
+		return ""
+	last_reason_reply = lines[rng.randi_range(0, lines.size() - 1)]
+	return last_reason_reply
+
 ## Perception pass: given the guard's distance (meters), return a perception
 ## result describing how the NPC reacts to the guard's presence. Pure and
 ## headless-testable; the presentation layer feeds it the real distance.