fix(deploy): use domestic mirrors without build proxy

[FZR95]

Summary

• restore the deploy workflow to use the checked-in Compose file and .env directly
• remove the temporary build env, Docker gateway lookup, and all build proxy arguments
• use DaoCloud base images, Aliyun Debian/PyPI mirrors, and npmmirror across production and optional images
• keep builds serialized and bounded so a failed build cannot saturate the host indefinitely
• remove proxy injection from the isolated Critic worker

Dependency updates

• Resonnet PR fix(profile-helper): slow-response hint + friendly network error message #12 merged: domestic base/APT/PyPI/npm sources
• ClawArcade PR feat(profile-helper): enhanced frontend with structured rendering, block protocol, scientist match #7 merged: domestic base/PyPI sources
• TopicLab-CLI PR feat: branch preview deploy, expert/moderator share to library, AI discussion UX #1 open: domestic npm source

Local validation

• 20 deployment/runtime safety tests passed on Python 3.12
• Docker Compose config validation passed
• deploy workflow YAML and embedded shell syntax passed
• Aliyun APT/PyPI and npmmirror endpoints returned HTTP 200
• DaoCloud Python/Node/Nginx manifests resolved successfully

Deployment safety

This PR does not reboot the server or trigger deployment until it is explicitly merged.