✨ context menu for file tree

src/renderer/store/editorStore.ts

@@ -48,6 +48,9 @@ interface EditorState {
   // File tree reordering
   moveNode: (dirPath: string, fromIdx: number, toIdx: number) => void
 
+  // Clear active file (e.g. after deletion)
+  clearActiveFile: () => void
+
   // Word counts
   projectWordCount: number
   setProjectWordCount: (count: number) => void
@@ -115,6 +118,8 @@ export const useEditorStore = create<EditorState>((set, get) => ({
     })
   },
 
+  clearActiveFile: () => set({ activeFilePath: null, activeFileContent: '', isDirty: false }),
+
   activeFilePath: null,
   activeFileContent: '',
   isDirty: false,