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/models/client_service.py

@@ -0,0 +1,97 @@
+# app/modules/hosting/models/client_service.py
+"""
+ClientService model - operational tracking for services.
+
+Complements billing StoreAddOn with operational details like domain expiry,
+registrar info, and mailbox counts.
+"""
+
+import enum
+
+from sqlalchemy import (
+    Boolean,
+    Column,
+    DateTime,
+    Enum,
+    ForeignKey,
+    Integer,
+    String,
+    Text,
+)
+from sqlalchemy.orm import relationship
+
+from app.core.database import Base
+from models.database.base import TimestampMixin
+
+
+class ServiceType(str, enum.Enum):
+    DOMAIN = "domain"
+    EMAIL = "email"
+    SSL = "ssl"
+    HOSTING = "hosting"
+    WEBSITE_MAINTENANCE = "website_maintenance"
+
+
+class ClientServiceStatus(str, enum.Enum):
+    PENDING = "pending"
+    ACTIVE = "active"
+    SUSPENDED = "suspended"
+    EXPIRED = "expired"
+    CANCELLED = "cancelled"
+
+
+class BillingPeriod(str, enum.Enum):
+    MONTHLY = "monthly"
+    ANNUAL = "annual"
+    ONE_TIME = "one_time"
+
+
+class ClientService(Base, TimestampMixin):
+    """Represents an operational service for a hosted site."""
+
+    __tablename__ = "client_services"
+
+    id = Column(Integer, primary_key=True, index=True)
+    hosted_site_id = Column(
+        Integer,
+        ForeignKey("hosted_sites.id", ondelete="CASCADE"),
+        nullable=False,
+        index=True,
+    )
+    service_type = Column(Enum(ServiceType), nullable=False)
+    name = Column(String(255), nullable=False)
+    description = Column(Text, nullable=True)
+    status = Column(
+        Enum(ClientServiceStatus),
+        nullable=False,
+        default=ClientServiceStatus.PENDING,
+    )
+
+    # Billing
+    billing_period = Column(Enum(BillingPeriod), nullable=True)
+    price_cents = Column(Integer, nullable=True)
+    currency = Column(String(3), nullable=False, default="EUR")
+    addon_product_id = Column(
+        Integer,
+        ForeignKey("addon_products.id", ondelete="SET NULL"),
+        nullable=True,
+    )
+
+    # Domain-specific
+    domain_name = Column(String(255), nullable=True)
+    registrar = Column(String(100), nullable=True)
+
+    # Email-specific
+    mailbox_count = Column(Integer, nullable=True)
+
+    # Expiry and renewal
+    expires_at = Column(DateTime, nullable=True)
+    period_start = Column(DateTime, nullable=True)
+    period_end = Column(DateTime, nullable=True)
+    auto_renew = Column(Boolean, nullable=False, default=True)
+
+    # Notes
+    notes = Column(Text, nullable=True)
+
+    # Relationships
+    hosted_site = relationship("HostedSite", back_populates="client_services")