- Add VIBETUNNEL_PREFER_DERIVED_DATA environment variable to vt script
- When set, prefers VibeTunnel builds from Xcode's DerivedData
- Logs binary location, version, and build timestamp
- Falls back to /Applications if no DerivedData build found
- Add version and buildDate to StatusResponse interface
- Include version info in api-socket-server status responses
- Add comprehensive documentation in README.md
- Version info already stored in session.json (was pre-existing)
This helps developers easily test changes without installing to /Applications
The vt script now operates silently by default, removing the
'# Using VibeTunnel from Mac app bundle' debug message that was
printed to stderr. Error messages are still shown when appropriate.
Closes#383
