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/schemas/hosted_site.py

@@ -0,0 +1,101 @@
+# app/modules/hosting/schemas/hosted_site.py
+"""Pydantic schemas for hosted site management."""
+
+from datetime import datetime
+
+from pydantic import BaseModel, Field
+
+
+class HostedSiteCreate(BaseModel):
+    """Schema for creating a hosted site."""
+
+    business_name: str = Field(..., max_length=255)
+    contact_name: str | None = Field(None, max_length=255)
+    contact_email: str | None = Field(None, max_length=255)
+    contact_phone: str | None = Field(None, max_length=50)
+    internal_notes: str | None = None
+
+
+class HostedSiteUpdate(BaseModel):
+    """Schema for updating a hosted site."""
+
+    business_name: str | None = Field(None, max_length=255)
+    contact_name: str | None = Field(None, max_length=255)
+    contact_email: str | None = Field(None, max_length=255)
+    contact_phone: str | None = Field(None, max_length=50)
+    internal_notes: str | None = None
+
+
+class SendProposalRequest(BaseModel):
+    """Schema for sending a proposal."""
+
+    notes: str | None = None
+
+
+class AcceptProposalRequest(BaseModel):
+    """Schema for accepting a proposal."""
+
+    merchant_id: int | None = None
+
+
+class GoLiveRequest(BaseModel):
+    """Schema for going live with a domain."""
+
+    domain: str = Field(..., max_length=255)
+
+
+class HostedSiteResponse(BaseModel):
+    """Schema for hosted site response."""
+
+    id: int
+    store_id: int
+    prospect_id: int | None = None
+    status: str
+    business_name: str
+    contact_name: str | None = None
+    contact_email: str | None = None
+    contact_phone: str | None = None
+    proposal_sent_at: datetime | None = None
+    proposal_accepted_at: datetime | None = None
+    went_live_at: datetime | None = None
+    proposal_notes: str | None = None
+    live_domain: str | None = None
+    internal_notes: str | None = None
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class HostedSiteDetailResponse(HostedSiteResponse):
+    """Full hosted site detail with services."""
+
+    client_services: list["ClientServiceResponse"] = []
+
+    class Config:
+        from_attributes = True
+
+
+class HostedSiteListResponse(BaseModel):
+    """Paginated hosted site list response."""
+
+    items: list[HostedSiteResponse]
+    total: int
+    page: int
+    per_page: int
+    pages: int
+
+
+class HostedSiteDeleteResponse(BaseModel):
+    """Response for hosted site deletion."""
+
+    message: str
+
+
+# Forward references
+from app.modules.hosting.schemas.client_service import (
+    ClientServiceResponse,  # noqa: E402
+)
+
+HostedSiteDetailResponse.model_rebuild()