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>

config/rules.yaml

@@ -47,6 +47,7 @@ rules:
     reason_ru: "C-SSRS: высокий риск (намерение/план или поведение)"
 
   - id: weapon_access_risk
+    enabled: false   # team decision 2026-10-04: weapon ownership is common in Russia — the answer triggers nothing
     description: >
       Access to weapons together with any suicide-risk signal (recent PHQ-9 item 9 >= 1 or C-SSRS >= moderate).
       Means restriction is one of the most evidence-based suicide-prevention measures → crisis safety block.