feat(web): questionnaires, diary and medication module in the patient app

- Focus screen renders versioned questionnaire items (iq: buttons): section chip, position
  (adaptive forms without "of N"), recall date, pause / help-now actions, optional skip,
  sleep-hours input, 0-10 scale anchors, RUS-AUDIT item 2 standard-drink table.
- Paused / held-for-review questionnaires get their own screen.
- Today: intake and diary tasks, review notice, therapy-day card on days 1/7/14.
- Drug card /meds/:ref from data/meds/meds_reference.json (draft built from the Minzdrav
  guidelines: depression 2024, PTSD 2023) — expected effect, course, side effects, red flags;
  no doses shown. "Report a side effect" always available (med:side_effects:<ref>).
- API: /instruments/catalog, /meds/reference; today gains questionnaire state, reference id,
  indication and therapy day; demo persona seeds the dashboard dose history.
- INTAKE_DEMO=1 (demo clock only) opens the questionnaires on synthetic data without touching
  the clinical release gate in config/intake_runtime.yaml.

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

app/core/intake_runtime.py

@@ -1,5 +1,6 @@
 """Versioned release gate and deterministic follow-up planning."""
 
+import os
 from calendar import monthrange
 from datetime import date, timedelta
 from pathlib import Path
@@ -64,8 +65,17 @@ def load_runtime(path: Path | None = None) -> RuntimePolicy:
     return RuntimePolicy.model_validate(yaml.safe_load(path.read_text()))
 
 
+def demo_intake() -> bool:
+    """Demo-only switch (INTAKE_DEMO=1 with the virtual clock): shows the questionnaires on synthetic data.
+
+    It never touches the clinical release gate in config/intake_runtime.yaml; production runs keep the forms off
+    until the approvals are recorded there.
+    """
+    return os.environ.get("INTAKE_DEMO", "").lower() in ("1", "true", "yes") and get_settings().demo_clock
+
+
 def intake_enabled() -> bool:
-    return load_runtime().released and load_policy().approval is not None
+    return (load_runtime().released and load_policy().approval is not None) or demo_intake()
 
 
 def month_before(day: date, months: int = 1) -> date: