[Docs, ReadMe] Update yml file

[sagan-park]

1. Removed complicated src matching.
2. Always Commit (Even If No Diff).
3. Detailed Debug Logging

• Logs changed sources
• Logs mapped intersection
• Logs copied files
• Logs updated_files.txt contents
• Logs each commit

4. GitHub Permission Fix

• Use ${{ github.token }} for pushing to delight-ai-docs (fixes 403).
• BOT_TOKEN only for checking out delight-ai-agent.
• PPROVE_BOT_TOKEN only for PR approval.

5. Replaced Disallowed 3rd-Party Actions

• Removed peter-evans + juliangruber actions.
• Added pure GitHub API calls for: creating PR & approving PR