vikingowl 6108b9e3d1 feat(tools): implement Edit and Write tools with deterministic patches (M3 complete) ...

This commit implements the complete M3 milestone (Edit & Write tools) including:

Write tool:
- Creates new files with parent directory creation
- Overwrites existing files safely
- Simple and straightforward implementation

Edit tool:
- Exact string replacement with uniqueness enforcement
- Detects ambiguous matches (multiple occurrences) and fails safely
- Detects no-match scenarios and fails with clear error
- Automatic backup before modification
- Rollback on write failure (restores from backup)
- Supports multiline string replacements

CLI integration:
- Added `write` subcommand: `owlen write <path> <content>`
- Added `edit` subcommand: `owlen edit <path> <old_string> <new_string>`
- Permission checks for both Write and Edit tools
- Clear error messages for permission denials

Permission enforcement:
- Plan mode (default): blocks Write and Edit (asks for approval)
- AcceptEdits mode: allows Write and Edit
- Code mode: allows all operations

Testing:
- 6 new tests in tools-fs for Write/Edit functionality
- 5 new tests in CLI for permission enforcement with Edit/Write
- Tests verify plan mode blocks, acceptEdits allows, code mode allows all
- All 32 workspace tests passing

Dependencies:
- Added `similar` crate for future diff/patch enhancements

M3 milestone complete! ✅

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-11-01 19:19:49 +01:00

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