Add UI and styling documentation; remove idempotency and logging audits

- Introduced a new document outlining UI structure, reusable template components, CSS variable conventions, and per-page data/actions for the CalMiner application.
- Removed outdated idempotency audit and logging audit documents as they are no longer relevant.
- Updated quickstart guide to streamline developer setup instructions and link to relevant documentation.
- Created a roadmap document detailing scenario enhancements and data management strategies.
- Deleted the seed data plan document to consolidate information into the setup process.
- Refactored setup_database.py for improved logging and error handling during database setup and migration processes.

docs/architecture/07_deployment/07_01_testing_ci.md

@@ -21,10 +21,7 @@ CalMiner uses a combination of unit, integration, and end-to-end tests to ensure
 ### CI/CD
 
 - Use Gitea Actions for CI/CD; workflows live under `.gitea/workflows/`.
-- `test.yml` runs on every push, provisions a temporary Postgres 16 service, waits for readiness, executes the setup script in dry-run and live modes, then fans out into parallel matrix jobs for unit (`pytest tests/unit`) and end-to-end (`pytest tests/e2e`) suites. Playwright browsers install only for the E2E job.
-- `build-and-push.yml` runs only after the **Run Tests** workflow finishes successfully (triggered via `workflow_run` on `main`). Once tests pass, it builds the Docker image with `docker/build-push-action@v2`, reuses cache-backed layers, and pushes to the Gitea registry.
-- `deploy.yml` runs only after the build workflow reports success on `main`. It connects to the target host (via `appleboy/ssh-action`), pulls the Docker image tagged with the build commit SHA, and restarts the container with that exact image reference.
-- Mandatory secrets: `REGISTRY_USERNAME`, `REGISTRY_PASSWORD`, `REGISTRY_URL`, `SSH_HOST`, `SSH_USERNAME`, `SSH_PRIVATE_KEY`.
+- `ci.yml` runs on push and pull requests to `main` and `develop` branches. It provisions a temporary PostgreSQL 15 service, sets up Python 3.11, installs dependencies from `requirements.txt` and `requirements-test.txt`, runs pytest with coverage on all tests, and builds the Docker image.
 - Run tests on pull requests to shared branches; enforce coverage target ≥80% (pytest-cov).
 
 ### Running Tests
@@ -74,7 +71,7 @@ To run the Playwright tests:
 
 ```bash
 pytest tests/e2e/
-````
+```
 
 To run headed mode:
 
@@ -166,11 +163,11 @@ When adding new workflows, mirror this structure to ensure secrets, caching, and
 - Usage sketch (in `test.yml`):
 
 ```yaml
-      - name: Prepare Python environment
-        uses: ./.gitea/actions/setup-python-env
-        with:
-          install-playwright: ${{ matrix.target == 'e2e' }}
-          db-dry-run: true
+- name: Prepare Python environment
+  uses: ./.gitea/actions/setup-python-env
+  with:
+    install-playwright: ${{ matrix.target == 'e2e' }}
+    db-dry-run: true
 ```
 
 - Benefits: centralizes proxy logic and dependency installs, reduces duplication across matrix jobs, and keeps future lint/type-check jobs lightweight by disabling database setup.