- Add getFileSystemProvider() getter to ProjectScanner
- Update SessionParser.parseSessionFile() to pass provider to parseJsonlFile()
- Update SessionParser.parseSubagentFile() to pass provider to parseJsonlFile()
- Update SubagentResolver.parseSubagentFile() to pass provider to parseJsonlFile()
- Update SessionParser test mock to include getFileSystemProvider method
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>