feat: add analysis pages and raster risk map

Ship a new app version with broader analytics, restructured
dashboards, and a server-rendered risk map.

Frontend:
- Add Overview, Demographic, Disease, and Environmental Health
  analysis pages
- Add AnomalyMarkers, CalendarHeatmap, and MetricHeatmapTable
  components
- Rebuild Alerts map onto server-rendered raster risk tiles;
  expand Monitoring, Trend, and District Comparison views
- Extend API client, stores, and TypeScript types

Backend:
- Add environment router (pollutants, lag correlations)
- Add risk_raster util serving XYZ 100m risk tiles
- Expand cases endpoints (demographics, seasonality, diagnoses)
  and insights; harden auth and file-based loaders

Data & tooling:
- Add processed outpatient/inpatient/combined case parquet (LFS)
- Add nested CLAUDE.md guides, pyrightconfig, and test updates

pyrightconfig.json

@@ -0,0 +1,15 @@
+{
+    "include": ["backend"],
+    "extraPaths": ["backend"],
+    "pythonVersion": "3.11",
+    "typeCheckingMode": "standard",
+    "reportUnknownMemberType": false,
+    "reportUnknownArgumentType": false,
+    "reportUnknownVariableType": false,
+    "reportUnknownParameterType": false,
+    "reportMissingTypeStubs": false,
+    "reportAttributeAccessIssue": false,
+    "reportArgumentType": false,
+    "reportCallIssue": false,
+    "reportOperatorIssue": false
+}