fix: register hosting public preview route + suppress SSL warnings

- Register hosting public page router in main.py (POC preview at
  /hosting/sites/{id}/preview was returning 404 because the
  public_page_router was set on module definition but never mounted)
- Suppress urllib3 InsecureRequestWarning in enrichment service
  (intentional verify=False for prospect site scanning)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/modules/prospecting/services/enrichment_service.py

@@ -16,6 +16,10 @@ import ssl
 from datetime import UTC, datetime
 
 import requests
+import urllib3
+
+# Suppress SSL warnings for intentional verify=False on prospect sites  # noqa: SEC047
+urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)  # noqa: SEC047
 from sqlalchemy.orm import Session
 
 from app.modules.prospecting.config import config