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/dialog/crisis.py

@@ -14,6 +14,7 @@ Decisions:
 
 from typing import Any
 
+from app.config import get_settings
 from app.core.safety import CrisisResource, CrisisScript, crisis_reply
 from app.dialog.contracts import Reply
 from app.dialog.fsm import Ctx, Step
@@ -37,6 +38,9 @@ def open_crisis(ctx: Ctx, categories: list[str], source: str) -> Step:
         text = "\n".join([ctx.texts.crisis.repeat, *_resource_lines(script.resources)])
         return Step(replies=[Reply(text=text, kind="crisis")])
     crisis = {"open": True, "opened_at": ctx.now.isoformat(), "source": source, "variant": script.variant}
+    if not get_settings().crisis_blocking:
+        # Non-blocking (demo default): the script is shown, the doctor is alerted, the patient keeps going.
+        return Step(replies=[Reply(text=script.text, kind="crisis")], data={"crisis": crisis})
     return Step(
         replies=[Reply(text=script.text, kind="crisis")],
         next_state="crisis",