Monorepo: Gitea CI, docs, auth/sync, backend APIs, gitignore

- Add Gitea Actions workflow; point README to gitea.d-bis.org/Sankofa_Phoenix/SMOA
- Expand .gitignore for Spring H2 data, secrets, Kotlin .kotlin/, tooling
- Track docs/api/generated ReDoc bundle; refresh api docs README
- Android: network/auth/sync, UI shell, tests; backend credentials/integrity APIs
- Docs, scripts (generate-api-docs), modules and core updates

Made-with: Cursor

docs/testing/E2E-PLAN.md

@@ -0,0 +1,11 @@
+# End-to-end test plan (future)
+
+| Flow | Preconditions | Steps | Pass criteria |
+|------|-----------------|-------|----------------|
+| Sync directory | Backend up, API key set | Create entry via POST; pull GET; app offline queue flush | Data matches |
+| Auth / RBAC | Test users seeded | Login restricted action | 403 without role |
+| Meeting join | Stub or WebRTC test peer | Join → audio route | Connection state Connected |
+
+**Tooling:** Maestro, Appium, or Espresso + MockWebServer for Android; XCUITest for iOS when the native app exists.
+
+**CI:** Run backend `:backend:test` and Android unit tests on every push; reserve E2E for nightly or pre-release.