RULES.md was not an opencode-recognized rules filename, so global
rules (including the "no AI co-author" Git rule) were never loaded;
only the stale, un-version-controlled ~/.claude/CLAUDE.md fallback
applied, which lacked that rule. Rename to AGENTS.md so opencode
loads it natively as the global rules file.
Also add watcher.ignore for node_modules/.git/dist/.venv/target dirs.
colem