feat: expand Cloudflare proxy support to include Discord and Google services while streamlining configuration settings

feat: enable worker subdomain and preview functionality during cloudflare proxy setup

feat: add ACP plugin configuration toggle and strip host header from proxy requests

refactor: rename CLOUDFLARE_API_TOKEN to CLOUDFLARE_WORKERS_TOKEN for proxy configuration

feat: replace DNS fix with automated Cloudflare outbound proxy provisioning for blocked network requests