docs: reorganize docs into subdirs and fix links

- Keep only index, getting-started, invariants, performance,
  troubleshooting, and file-organization-summary in docs/ root
- Add docs/architecture/ (storage, database interfaces, native fetcher)
- Add docs/deployment/ (deployment-guide, DEPLOYMENT_CHECKLIST)
- Add docs/compliance/ (accessibility, legal, observability)
- Move integration guides and host-app docs to docs/integration/
- Move design/planning and prefetch docs to docs/design/
- Move Android consuming-app and comparison docs to docs/platform/android/
- Move DEPLOYMENT_SUMMARY and TODO-CLASSIFICATION to docs/progress/
- Archive deprecated platform-capability-reference to docs/_archive/
- Point platform-capability links to alarms/01-platform-capability-reference.md
- Update docs/00-INDEX.md with new sections and paths
- Fix cross-references in README, deployment, progress, design, testing,
  and test-app docs
- Remove one-off COMMIT_MESSAGE.txt

test-apps/daily-notification-test/IMPLEMENTATION_COMPLETE.md

@@ -123,7 +123,7 @@
 - Items #7-11: Unit tests, JWT utility extraction, interceptors, caching, metrics
 
 ### Documentation:
-- Update `docs/NATIVE_FETCHER_CONFIGURATION.md` to reflect token-based approach
+- Update `docs/architecture/NATIVE_FETCHER_CONFIGURATION.md` to reflect token-based approach
 - Document ES256K JWT generation pattern for TimeSafari integration
 
 ---

test-apps/daily-notification-test/TODO_NATIVE_FETCHER.md

@@ -248,7 +248,7 @@ private String getAuthorizationHeader() {
    - [ ] Handle token expiration errors and regenerate tokens
 
 **7. Documentation Updates**:
-   - [ ] Update `docs/NATIVE_FETCHER_CONFIGURATION.md` to reflect token-based approach
+   - [ ] Update `docs/architecture/NATIVE_FETCHER_CONFIGURATION.md` to reflect token-based approach
    - [ ] Document how to generate tokens in TypeScript using TimeSafari infrastructure
    - [ ] Remove references to `jwtSecret` and HMAC-SHA256
 
@@ -639,7 +639,7 @@ Before considering this implementation complete:
 
 ## 📚 Related Documentation
 
-- `docs/NATIVE_FETCHER_CONFIGURATION.md` - Native fetcher configuration guide
+- `docs/architecture/NATIVE_FETCHER_CONFIGURATION.md` - Native fetcher configuration guide
 - `src/types/content-fetcher.ts` - TypeScript type definitions
 - `src/definitions.ts` - `PlansLastUpdatedResponse` and `PlanSummaryWithPreviousClaim` interfaces
 - `examples/native-fetcher-android.kt` - Example Android implementation