fix(clinical): red flags, one crisis rule, callback after a crisis, one table of numbers

Clinical review of the questionnaires (ADR-013):
- Red-flag block first in stage 1 (config/instruments/red_flags.yaml); any «Да» stops the
  questionnaire with an acute alert and the help screen of its category.
- One crisis rule: the crisis screen opens at a HIGH C-SSRS risk only; moderate stops and goes
  to a psychiatrist (24 h as a guide), low is a flag with the safety plan. PHQ-9 item 9 with a
  negative screener is a discrepancy flag; without a completed screener it asks the C-SSRS at once.
  config/questionnaire.yaml: cssrs_positive_policy graded (C01).
- Every crisis leaves a callback task for the doctor on duty (post_crisis_call, one per patient)
  and the app asks how the person is the next day, the safety plan one tap away.
- Routing: risk and flags first, scales second; PCL-5 >= 50 no longer means a priority
  appointment (pcl5_severe is moderate on the dashboard too).
- Crisis numbers live only in config/texts/crisis.yaml; texts and the agent prompt refer to them
  via {phone:<key>}. Fixes the children's helpline offered to adults by the chat agent.

Refs #92

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

tests/test_services_monitoring.py

@@ -178,6 +178,7 @@ async def test_andrey_13_days(db: MemoryNotifier) -> None:
         "sleep_lt4_3n",
         "alcohol_3d",
         "phq9_item9",  # same evaluation: YAML order
+        "post_crisis_call",  # the crisis leaves a callback task for the doctor on duty
         "phq9_rise",
     ]
     assert len(crisis_audit) == 1 and crisis_audit[0].token == TOKEN and crisis_audit[0].actor == "system"
@@ -260,7 +261,7 @@ async def test_notifier_failure_keeps_alert(db: MemoryNotifier, monkeypatch: pyt
     await scale("pcl5", 55)
     await monitoring.RuleMonitoring().after_data_change(TOKEN)
     async with session.get_clinical_session() as s:
-        assert [(a.code, a.level) for a in await repo.list_alerts(s, token=TOKEN)] == [("pcl5_severe", "high")]
+        assert [(a.code, a.level) for a in await repo.list_alerts(s, token=TOKEN)] == [("pcl5_severe", "moderate")]
     assert await color() == "yellow"