Document hook references and compatibility issues

[tanuj-corridor]

Summary

• Add a markdown file with official hook documentation links for Claude Code, Cursor, Windsurf Cascade, and Factory Droid.
• Add concise compatibility issue notes with file/function references for follow-up work.

Testing

• go test ./...

  

[corridor-security]

Summary: This PR adds two documentation files (hook-compatibility-issues.md and hook-documentation-links.md) without changing executable code; no exploitable security vulnerabilities were identified.

Risk: Low risk. Documentation-only changes introduce no new attack surface and do not affect command execution, path handling, SSRF validation, or other security boundaries.