Open diff files in editor from clickable diff headers

[juliusmarminge]

Summary

• Make diff file headers interactive and open the corresponding file in the configured terminal editor when clicked.
• Resolve file paths against the active thread/project working directory before invoking openInEditor.
• Add header hover/click styling and tighten diff panel spacing for file and fallback views.
• Handle editor-open failures safely with a console warning.

Testing

• Not run (no test execution details provided in this change set).
• Manual check: click a file header in the Diff Panel and verify the file opens in the preferred editor.
• Manual check: verify no open action occurs when clicking non-header regions of a diff file.
• Manual check: verify relative paths resolve correctly when the active thread has a worktree path and when falling back to project cwd.

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Note

Medium Risk
Adds a new click-to-open behavior that invokes the native shell.openInEditor bridge and resolves paths against thread/project working directories, which could affect Electron/desktop integrations and path handling.

Overview
Makes diff file headers clickable in DiffPanel so selecting a header opens that file in the user’s preferred terminal editor via the native API.

Paths are resolved relative to the active thread worktree or project cwd, failures are handled with a warning, and the diff UI gets small spacing/hover-style tweaks (header underline/hover, tighter padding, per-file margins).

^{Written by Cursor Bugbot for commit 9a30a50. This will update automatically on new commits. Configure here.}

Note

Add clickable diff file headers that open the file in the preferred terminal editor from DiffPanel.tsx

Add onClickCapture to detect clicks on [data-title] elements and call readNativeApi().shell.openInEditor with a path from resolvePathLinkTarget using preferredTerminalEditor; update styles via DIFF_PANEL_UNSAFE_CSS and adjust container padding/margins.

📍Where to Start

Start with the openDiffFileInEditor callback and the onClickCapture handler in DiffPanel.tsx.

^{Macroscope summarized 9a30a50.}

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