clean: remove all VNC/desktop files and references

docs: Ubuntu desktop --expect Directory listing, /vnc.html

feat: sshd + reverse SSH for local SSH into HF Ubuntu; docs/SSH_ACCESS.md

fix: noVNC run in foreground with --web; dbus optional; add --wait-url for poll-without-token; doc PUSH_DEBUG

deploy: Ubuntu desktop as root Dockerfile; add push-debug workflow doc; generic monitor retries and sync retry

docs: 通用用法 GENERAL_USAGE + README/ubuntu-desktop 强调通用、用户最少步骤

chore: add remote logs doc + monitor script, restore Dockerfile pip step

HuggingRun: 通用接口 + HF 限制文档 + APP_PORT + ubuntu-desktop 示例