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>

docs/deployment/hetzner-server-setup.md

@@ -611,7 +611,16 @@ It should match the value in the Hetzner Cloud Console (Networking tab). Then cr
 | AAAA | `git` | `2a01:4f8:1c1a:b39c::1` | 300 |
 | AAAA | `flower` | `2a01:4f8:1c1a:b39c::1` | 300 |
 
-Repeat for `omsflow.lu` and `rewardflow.lu`.
+Repeat for `omsflow.lu`, `rewardflow.lu`, and `hostwizard.lu`.
+
+**hostwizard.lu DNS Records:**
+
+| Type | Name | Value | TTL |
+|---|---|---|---|
+| A | `@` | `91.99.65.229` | 300 |
+| A | `www` | `91.99.65.229` | 300 |
+| AAAA | `@` | `2a01:4f8:1c1a:b39c::1` | 300 |
+| AAAA | `www` | `2a01:4f8:1c1a:b39c::1` | 300 |
 
 !!! tip "DNS propagation"
     Set TTL to 300 (5 minutes) initially. DNS changes can take up to 24 hours to propagate globally, but usually complete within 30 minutes. Verify with: `dig api.wizard.lu +short`
@@ -661,6 +670,15 @@ www.rewardflow.lu {
     redir https://rewardflow.lu{uri} permanent
 }
 
+# ─── Platform 4: HostWizard (hostwizard.lu) ──────────────────
+hostwizard.lu {
+    reverse_proxy localhost:8001
+}
+
+www.hostwizard.lu {
+    redir https://hostwizard.lu{uri} permanent
+}
+
 # ─── Services ───────────────────────────────────────────────
 api.wizard.lu {
     reverse_proxy localhost:8001
@@ -676,7 +694,7 @@ flower.wizard.lu {
 ```
 
 !!! info "How multi-platform routing works"
-    All platform domains (`wizard.lu`, `omsflow.lu`, `rewardflow.lu`) point to the **same FastAPI backend** on port 8001. The `PlatformContextMiddleware` reads the `Host` header to detect which platform the request is for. Caddy preserves the Host header by default, so no extra configuration is needed.
+    All platform domains (`wizard.lu`, `omsflow.lu`, `rewardflow.lu`, `hostwizard.lu`) point to the **same FastAPI backend** on port 8001. The `PlatformContextMiddleware` reads the `Host` header to detect which platform the request is for. Caddy preserves the Host header by default, so no extra configuration is needed.
 
     The `domain` column in the `platforms` database table must match:
 
@@ -685,6 +703,7 @@ flower.wizard.lu {
     | Main | `main` | `wizard.lu` |
     | OMS | `oms` | `omsflow.lu` |
     | Loyalty+ | `loyalty` | `rewardflow.lu` |
+    | HostWizard | `hosting` | `hostwizard.lu` |
 
 Start Caddy:
 
@@ -1909,6 +1928,7 @@ Cloudflare Origin Certificates (free, 15-year validity) avoid ACME challenge iss
     - `wizard.lu`: `wizard.lu, api.wizard.lu, www.wizard.lu, flower.wizard.lu, grafana.wizard.lu`
     - `omsflow.lu`: `omsflow.lu, www.omsflow.lu`
     - `rewardflow.lu`: `rewardflow.lu, www.rewardflow.lu`
+    - `hostwizard.lu`: `hostwizard.lu, www.hostwizard.lu`
 3. Download the certificate and private key (private key is shown only once)
 
 !!! warning "Do NOT use wildcard origin certs for wizard.lu"
@@ -1917,12 +1937,12 @@ Cloudflare Origin Certificates (free, 15-year validity) avoid ACME challenge iss
 Install on the server:
 
 ```bash
-sudo mkdir -p /etc/caddy/certs/{wizard.lu,omsflow.lu,rewardflow.lu}
+sudo mkdir -p /etc/caddy/certs/{wizard.lu,omsflow.lu,rewardflow.lu,hostwizard.lu}
 
 # For each domain, create cert.pem and key.pem:
 sudo nano /etc/caddy/certs/wizard.lu/cert.pem    # paste certificate
 sudo nano /etc/caddy/certs/wizard.lu/key.pem      # paste private key
-# Repeat for omsflow.lu and rewardflow.lu
+# Repeat for omsflow.lu, rewardflow.lu, and hostwizard.lu
 
 sudo chown -R caddy:caddy /etc/caddy/certs/
 sudo chmod 600 /etc/caddy/certs/*/key.pem
@@ -1976,6 +1996,17 @@ www.rewardflow.lu {
     redir https://rewardflow.lu{uri} permanent
 }
 
+# ─── Platform 4: HostWizard (hostwizard.lu) ──────────────────
+hostwizard.lu {
+    tls /etc/caddy/certs/hostwizard.lu/cert.pem /etc/caddy/certs/hostwizard.lu/key.pem
+    reverse_proxy localhost:8001
+}
+
+www.hostwizard.lu {
+    tls /etc/caddy/certs/hostwizard.lu/cert.pem /etc/caddy/certs/hostwizard.lu/key.pem
+    redir https://hostwizard.lu{uri} permanent
+}
+
 # ─── Services (wizard.lu origin cert) ───────────────────────
 api.wizard.lu {
     tls /etc/caddy/certs/wizard.lu/cert.pem /etc/caddy/certs/wizard.lu/key.pem
@@ -2010,7 +2041,7 @@ sudo systemctl status caddy
 
 ### 21.6 Cloudflare Settings (per domain)
 
-Configure these in the Cloudflare dashboard for each domain (`wizard.lu`, `omsflow.lu`, `rewardflow.lu`):
+Configure these in the Cloudflare dashboard for each domain (`wizard.lu`, `omsflow.lu`, `rewardflow.lu`, `hostwizard.lu`):
 
 | Setting | Location | Value |
 |---|---|---|