631021aa67
- Added buildCompactHashlineDiffPreview() function to generate collapsed diff previews for tool responses. - Enhanced EditTool response to include diff summary with added/removed line counts and compact preview. - Added project-level discovery for .agent/ and .agents/ directories walking up to repository root. - Implemented helper functions for truncating long diff runs (collapseFromStart, collapseFromEnd, collapseFromMiddle).