feat(dashboard): doctor dashboard with red zones, patient card, live alerts and patient connect

- Patient list sorted red -> yellow -> grey -> green with KPI row, trend arrows,
  7-day adherence bars, discontinuation-risk badge with factor tooltip.
- Patient card: scales with severity bands from config/scales (unscheduled marked),
  mood/sleep/alcohol small multiples, dose heat-strip, alerts feed with ack,
  safety plan, AI summary with disclaimer.
- Live alerts: st.fragment(run_every=2.5s) polling, toast + pinned acute banner on
  every page; full rerun on new alert only on doctor pages.
- Connect form -> POST /patients/connect -> code, QR, deep link.
- Thin httpx ApiClient over the frozen schemas with graceful "API недоступен".
- app.py discovers dashboard/pages/*.py automatically (st.navigation); demo pages
  of #17 plug in by adding a file.

Refs #16

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

.streamlit/config.toml

@@ -0,0 +1,18 @@
+# Dashboard-only Streamlit settings (doctor dashboard + demo console).
+[theme]
+base = "light"
+primaryColor = "#2A78D6"
+backgroundColor = "#F6F7F9"
+secondaryBackgroundColor = "#FFFFFF"
+textColor = "#1B1F24"
+borderColor = "#E3E6EA"
+baseRadius = "medium"
+# Falls back to the system sans-serif when offline (ADR-004).
+font = "Inter:https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap, sans-serif"
+headingFontWeights = 700
+
+[client]
+toolbarMode = "minimal"
+
+[browser]
+gatherUsageStats = false