Add OPENCLAW_GATEWAY_TRUSTED_PROXIES and fix entrypoint to preserve config on restart

Add OPENCLAW_GATEWAY_TRUSTED_PROXIES environment variable

docs: Add device pairing instructions and troubleshooting steps to INSTALL.md

Fix directory permissions for UNRAID mounted volumes

docs: Add instructions for overwriting tags and pushing to Docker Hub

Embed entrypoint script directly in Dockerfile to avoid permission issues

Use COPY --chmod=755 to fix entrypoint permissions

Fix entrypoint execution with explicit /bin/sh interpreter

Fix entrypoint line endings and execution method

Add command to view Docker logs during release process

Fix entrypoint permissions by switching to root user for chmod

Use official openclaw Docker image directly without modifications

Fix: remove 'name' field for compatibility with older docker-compose versions

Initial commit - OpenClaw UNRAID Template v1.0.0