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>

scripts/seed/init_production.py

@@ -55,6 +55,7 @@ for _mod in [
     "app.modules.orders.models",
     "app.modules.marketplace.models",
     "app.modules.cms.models",
+    "app.modules.hosting.models",
 ]:
     with contextlib.suppress(ImportError):
         __import__(_mod)
@@ -194,6 +195,16 @@ def create_oms_admin(db: Session, auth_manager: AuthManager, oms_platform: Platf
     )
 
 
+def create_hostwizard_admin(db: Session, auth_manager: AuthManager, hosting_platform: Platform) -> User | None:
+    """Create a platform admin for the HostWizard platform."""
+    return create_platform_admin(
+        db, auth_manager, hosting_platform,
+        username="hosting_admin",
+        email="admin@hostwizard.lu",
+        first_name="HostWizard",
+    )
+
+
 def create_default_platforms(db: Session) -> list[Platform]:
     """Create all default platforms (OMS, Main, Loyalty+)."""
 
@@ -231,6 +242,17 @@ def create_default_platforms(db: Session) -> list[Platform]:
             "settings": {"features": ["points", "rewards", "tiers", "analytics"]},
             "theme_config": {"primary_color": "#8B5CF6", "secondary_color": "#A78BFA"},
         },
+        {
+            "code": "hosting",
+            "name": "HostWizard",
+            "description": "Web hosting, domains, email, and website building for Luxembourg businesses",
+            "domain": "hostwizard.lu",
+            "path_prefix": "hosting",
+            "default_language": "fr",
+            "supported_languages": ["fr", "de", "en", "lb"],
+            "settings": {"features": ["hosting", "domains", "email", "ssl", "poc_sites"]},
+            "theme_config": {"primary_color": "#0D9488", "secondary_color": "#14B8A6"},
+        },
     ]
 
     platforms = []
@@ -526,6 +548,7 @@ def create_platform_modules(db: Session, platforms: list[Platform]) -> int:
         "oms": ["inventory", "catalog", "orders", "marketplace", "analytics", "cart", "checkout"],
         "main": ["analytics", "monitoring", "dev-tools"],
         "loyalty": ["loyalty"],
+        "hosting": ["prospecting", "hosting", "analytics"],
     }
 
     now = datetime.now(UTC)
@@ -647,6 +670,12 @@ def initialize_production(db: Session, auth_manager: AuthManager):
     else:
         print_warning("Loyalty platform not found, skipping loyalty admin creation")
 
+    hosting_platform = next((p for p in platforms if p.code == "hosting"), None)
+    if hosting_platform:
+        create_hostwizard_admin(db, auth_manager, hosting_platform)
+    else:
+        print_warning("Hosting platform not found, skipping hosting admin creation")
+
     # Step 4: Set up default role templates
     print_step(4, "Setting up role templates...")
     create_default_role_templates(db)
@@ -729,6 +758,11 @@ def print_summary(db: Session):
     print(f"    URL:      {admin_url}")
     print("    Username: loyalty_admin")
     print("    Password: admin123")  # noqa: SEC021
+    print()
+    print("  HostWizard Platform Admin (hosting only):")
+    print(f"    URL:      {admin_url}")
+    print("    Username: hosting_admin")
+    print("    Password: admin123")  # noqa: SEC021
     print("─" * 70)
 
     # Show security warnings if in production