YeonGyu-Kim 865ced72e4 feat(hooks): add hashline-edit-diff-enhancer for Write tool diff metadata
Captures file content before/after Write tool execution and injects unified
diff into tool output metadata. TUI reads metadata.diff for rendering.

🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)
2026-02-21 17:07:34 +09:00
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