Add wildcard route for handle subdomain resolution
*.pds.solpbc.org/* now routes to the rookery Worker via zone-based
route, enabling AT Protocol HTTP handle verification (GET
https://{handle}/.well-known/atproto-did). DNS AAAA record for
*.pds.solpbc.org created via Cloudflare API.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>