fix: merge main branch and renumber migration 037→040

Resolve all merge conflicts between our automation feature branch and
current main (v0.163.0, 920 commits ahead).

Conflicts resolved:
- app/api/__init__.py: add automation_router alongside main's new routers
  (classification_rules, qr_auth, sessions, system_reset)
- app/config.py: add main's new settings (dropbox_use_global_credentials,
  factory_reset_on_startup, enable_factory_reset)
- app/models.py: add main's new models (ClassificationRuleModel, UserSession,
  QRLoginChallenge, SharePoint integration type)
- app/utils/settings_service.py: merge automation_hooks_enabled with main's
  new metadata entries
- docs/API.md: merge automation API docs with main's classification rules docs
- docs/ConfigurationGuide.md: add factory reset settings
- tests/conftest.py: import both AutomationHook and new main models

Migration renumbered:
- 037_add_automation_hooks → 040_add_automation_hooks
- down_revision: 039_add_classification_rules (was 036_add_document_translation_fields)
- Chain: 036 → 037 → 038 → 039 → 040 (automation hooks)

For all non-automation files with conflicts, main's version was taken since
our branch did not modify those files (conflicts were from a stale prior merge).

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
Agent-Logs-Url: https://github.com/christianlouis/DocuElevate/sessions/cb62f012-3b69-4415-835e-3857ce3e9f45

.github/workflows/ci.yml

@@ -44,6 +44,18 @@ jobs:
       - run: ruff check app/ tests/
       - run: ruff format --check app/ tests/
 
+  migration-chain:
+    name: Alembic Migration Chain Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+      - name: Validate migration chain
+        run: python scripts/check_alembic_migrations.py
+
   html-lint:
     name: HTML Accessibility Lint
     runs-on: ubuntu-latest
@@ -138,7 +150,7 @@ jobs:
   build:
     name: Build & Push Docker Image
     runs-on: ubuntu-latest
-    needs: [run-tests, mypy, dependency-scan, html-lint]
+    needs: [run-tests, mypy, dependency-scan, html-lint, migration-chain]
     if: github.event_name == 'push'
     steps:
       - name: Checkout Code