refactor: replace UptimeRobot keep-alive implementation with Cloudflare Workers based solution

feat: add memory-efficient rate-limit pruning and remove unused worker file from image

refactor: enhance Cloudflare outbound proxy with improved request patching, robust header handling, and secure environment configuration.

feat: extend cloudflare-proxy to support fetch interception and simplify configuration, while removing redundant dns-fix utility.

feat: rename proxy files and make CLOUDFLARE_PROXY_URL required

feat: implement transparent outbound proxy for SNI bypass

chore: align networking configuration with HuggingClaw

fix: move NODE_OPTIONS definition after dns-fix.js is copied to prevent build errors

refactor: move dns-fix.js to /opt and apply globally via NODE_OPTIONS in Dockerfile

fix: suppress pip root warnings and prioritize DoH resolution over system DNS to bypass sinkholing

feat: implement DNS-over-HTTPS fallback via custom preload script to resolve connectivity issues on HuggingFace Spaces

refactor: remove python3 symlink redirection and add default N8N_LOG_LEVEL configuration

chore: rename python3 to python3-sync to avoid conflicts in container execution environment

chore: reduce build output verbosity by adding quiet flags to package installers

feat: install python3-venv and automatically initialize a local virtual environment for n8n in start script

refactor: optimize startup, improve security, and simplify n8n configuration for v2 compatibility

feat: add open-source files, fix critical bugs, rewrite README with Duplicate Space button

initial commit