Adds a helper script that automatically runs docker exec against the
active Eagle instance (blue or green), determined by checking nginx
config.
Usage:
eagle-exec printenv GEMINI_API_KEY
eagle-exec jcmd 1 VM.flags
eagle-exec sh
The script is deployed to /opt/eagle0/scripts/ and symlinked to
/usr/local/bin/eagle-exec for easy access.
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>