feat(hosting): add HostWizard platform module and fix migration chain

- Add complete hosting module (models, routes, schemas, services, templates, migrations)
- Add HostWizard platform to init_production seed (code=hosting, domain=hostwizard.lu)
- Fix cms_002 migration down_revision to z_unique_subdomain_domain
- Fix prospecting_001 migration to chain after cms_002 (remove branch label)
- Add hosting/prospecting version_locations to alembic.ini
- Fix admin_services delete endpoint to use proper response model
- Add hostwizard.lu to deployment docs (DNS, Caddy, Cloudflare)
- Add hosting and prospecting user journey docs to mkdocs nav

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/hosting/routes/api/admin_services.py

@@ -12,6 +12,7 @@ from app.api.deps import get_current_admin_api
 from app.core.database import get_db
 from app.modules.hosting.schemas.client_service import (
     ClientServiceCreate,
+    ClientServiceDeleteResponse,
     ClientServiceResponse,
     ClientServiceUpdate,
 )
@@ -59,7 +60,7 @@ def update_service(
     return service
 
 
-@router.delete("/{service_id}")
+@router.delete("/{service_id}", response_model=ClientServiceDeleteResponse)
 def delete_service(
     site_id: int = Path(...),
     service_id: int = Path(...),
@@ -69,4 +70,4 @@ def delete_service(
     """Delete a client service."""
     client_service_service.delete(db, service_id)
     db.commit()
-    return {"message": "Service deleted"}  # noqa: API001
+    return ClientServiceDeleteResponse(message="Service deleted")