Aider adapter (custom-harness post-run script)

[cobusgreyling]

Summary

Add an integration adapter for Aider that packages evidence after sessions (--from custom-harness).

Acceptance criteria

• outerloop integrate aider or documented script in packages/integrate
• Post-run hook template similar to Claude Code .claude/post-run-outerloop.sh
• Example in examples/ or patterns/
• Test for files written (mirror claude-code.test.ts)

References

• packages/integrate/src/claude-code.ts