feat: crisis message after the test and non-blocking; weapon answer triggers nothing; ЕМИАС demo = Никита

- CRISIS_BLOCKING (default off for the demo): a crisis no longer locks the dialog; the message and the
  doctor's acute alert still happen. The clinical protocol (blocking, immediate stop) stays behind the flag and
  keeps its tests.
- Crisis signals inside a questionnaire (intake red flags, high C-SSRS, PHQ-9 item 9) no longer stop it: the
  test is finished and the crisis message comes at the end; the doctor's alert is raised at once/at the end.
- Weapon access: asked and stored, triggers nothing (rule disabled, no red flag, no safety block).
- ЕМИАС demo persona is «Никита В.»; the one-click demo stays «Андрей С.».

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/core/intake_questions.py

@@ -61,6 +61,11 @@ def red_flag_category(item_id: str) -> str | None:
     return next((i["category"] for i in red_flags()["items"] if i["id"] == item_id), None)
 
 
+def red_flag_triggers(item_id: str) -> bool:
+    """False for questions that are asked and stored but never stop/alert (rf_weapons, team decision 2026-10-04)."""
+    return next((i.get("trigger", True) for i in red_flags()["items"] if i["id"] == item_id), True)
+
+
 def next_intake(answers: dict, policy: IntakePolicy, sex: str | None) -> Question | None:
     """Stage 1: the red-flag block first (config/instruments/red_flags.yaml), then the fixed order of «Опросники
     для MVP»: PHQ-2, trauma filter → TSQ, RUS-AUDIT-S, C-SSRS screener, the context questions; stage 2 (rest of