feat: Add Diff View and File History Tracking

- Implemented a new Diff View in the Workbench to visualize file changes
- Added file history tracking with detailed change information
- Enhanced FileTree and FileModifiedDropdown to show line additions and deletions
- Integrated file history saving and retrieval in ActionRunner
- Updated Workbench view types to include 'diff' option
- Added support for inline and side-by-side diff view modes

app/components/workbench/EditorPanel.tsx

@@ -12,6 +12,7 @@ import {
 import { PanelHeader } from '~/components/ui/PanelHeader';
 import { PanelHeaderButton } from '~/components/ui/PanelHeaderButton';
 import type { FileMap } from '~/lib/stores/files';
+import type { FileHistory } from '~/types/actions';
 import { themeStore } from '~/lib/stores/theme';
 import { WORK_DIR } from '~/utils/constants';
 import { renderLogger } from '~/utils/logger';
@@ -27,6 +28,7 @@ interface EditorPanelProps {
   editorDocument?: EditorDocument;
   selectedFile?: string | undefined;
   isStreaming?: boolean;
+  fileHistory?: Record<string, FileHistory>;
   onEditorChange?: OnEditorChange;
   onEditorScroll?: OnEditorScroll;
   onFileSelect?: (value?: string) => void;
@@ -45,6 +47,7 @@ export const EditorPanel = memo(
     editorDocument,
     selectedFile,
     isStreaming,
+    fileHistory,
     onFileSelect,
     onEditorChange,
     onEditorScroll,
@@ -83,6 +86,7 @@ export const EditorPanel = memo(
                   files={files}
                   hideRoot
                   unsavedFiles={unsavedFiles}
+                  fileHistory={fileHistory}
                   rootFolder={WORK_DIR}
                   selectedFile={selectedFile}
                   onFileSelect={onFileSelect}