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>

web/src/content/reference.ts

@@ -0,0 +1,41 @@
+import { useEffect, useState } from "react";
+
+import { api } from "../api/client";
+import type { Catalog, MedsReference } from "../api/types";
+
+/*
+ * Static reference data from the server (questionnaire catalog, drug reference): fetched once per app run and
+ * shared by every screen. A failed fetch is retried on the next mount; screens work without it, only less rich.
+ */
+
+function cached<T>(load: () => Promise<T>) {
+  let value: T | null = null;
+  let inflight: Promise<T> | null = null;
+  const get = () => {
+    inflight ??= load().then(
+      (v) => (value = v),
+      (e) => {
+        inflight = null;
+        throw e;
+      },
+    );
+    return inflight;
+  };
+  return function useCached(): T | null {
+    const [v, setV] = useState<T | null>(value);
+    useEffect(() => {
+      if (value) return;
+      let alive = true;
+      get()
+        .then((x) => alive && setV(x))
+        .catch(() => undefined);
+      return () => {
+        alive = false;
+      };
+    }, []);
+    return v;
+  };
+}
+
+export const useCatalog = cached<Catalog>(api.catalog);
+export const useMedsReference = cached<MedsReference>(api.medsReference);