feat(compliance): add GDPR, HIPAA, SOC2 compliance templates with one-click apply and dashboard

- Add ComplianceTemplate model in app/models.py
- Create database migration 027_add_compliance_templates
- Add compliance_enabled feature flag to config and settings metadata
- Create compliance_service.py with pre-built template definitions and evaluation
- Create compliance API endpoints (list, get, apply, status, summary)
- Create compliance admin view and dashboard template
- Add compliance link to admin navigation (desktop and mobile)
- Seed compliance templates at application startup
- Add comprehensive tests (29 passing)

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

app/views/__init__.py

@@ -7,6 +7,7 @@ from fastapi import APIRouter
 from app.views.admin_users import router as admin_users_router
 from app.views.api_tokens import router as api_tokens_router
 from app.views.backup import router as backup_router
+from app.views.compliance import router as compliance_router
 from app.views.db_wizard import router as db_wizard_router
 from app.views.dropbox import router as dropbox_router
 from app.views.filemanager import router as filemanager_router
@@ -61,3 +62,4 @@ router.include_router(integrations_router)  # Unified integrations dashboard
 router.include_router(notifications_router)  # User notification dashboard
 router.include_router(scheduled_jobs_router)  # Admin scheduled batch jobs
 router.include_router(help_router)  # Built-in help / How-To docs
+router.include_router(compliance_router)  # Compliance templates dashboard