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>

app/core/instrument_catalog.py

@@ -13,7 +13,7 @@ from pydantic import BaseModel
 
 from app.config import get_settings
 from app.core.cssrs_content import load_cssrs_russian
-from app.core.intake_questions import DIARY_PARTS, content, diary_config, texts
+from app.core.intake_questions import DIARY_PARTS, content, diary_config, red_flags, texts
 from app.core.scales import load_scale
 
 Section = Literal["safety", "mood", "trauma", "alcohol", "about", "diary", "scale"]
@@ -92,6 +92,9 @@ def catalog() -> Catalog:
                 ),
             )
 
+    flags = red_flags()
+    add(FormInfo(id="red_flags", title="Вопросы о безопасности", section="safety"), [i["id"] for i in flags["items"]])
+
     cssrs = load_cssrs_russian()
     add(FormInfo(id="cssrs", title=cssrs.title, section="safety"), ["cssrs_" + i.id for i in cssrs.items])