feat(w2): ship v1.3.0 project pack UI, preload, and E2E

Wire .novel/.novel-all export-import through modals, settings backup, and home bulk export with progress IPC.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/renderer/stores/useAppStore.ts

@@ -10,6 +10,7 @@ interface AppState {
   landmarksModalOpen: boolean
   inspirationModalOpen: boolean
   importBookModalOpen: boolean
+  exportAllModalOpen: boolean
   focusMode: boolean
   namingCheckOpen: boolean
   toast: string | null
@@ -20,6 +21,7 @@ interface AppState {
   setLandmarksModalOpen: (open: boolean) => void
   setInspirationModalOpen: (open: boolean) => void
   setImportBookModalOpen: (open: boolean) => void
+  setExportAllModalOpen: (open: boolean) => void
   setFocusMode: (on: boolean) => void
   setNamingCheckOpen: (open: boolean) => void
   showToast: (message: string) => void
@@ -34,6 +36,7 @@ export const useAppStore = create<AppState>((set) => ({
   landmarksModalOpen: false,
   inspirationModalOpen: false,
   importBookModalOpen: false,
+  exportAllModalOpen: false,
   focusMode: false,
   namingCheckOpen: false,
   toast: null,
@@ -44,6 +47,7 @@ export const useAppStore = create<AppState>((set) => ({
   setLandmarksModalOpen: (landmarksModalOpen) => set({ landmarksModalOpen }),
   setInspirationModalOpen: (inspirationModalOpen) => set({ inspirationModalOpen }),
   setImportBookModalOpen: (importBookModalOpen) => set({ importBookModalOpen }),
+  setExportAllModalOpen: (exportAllModalOpen) => set({ exportAllModalOpen }),
   setFocusMode: (focusMode) => set({ focusMode }),
   setNamingCheckOpen: (namingCheckOpen) => set({ namingCheckOpen }),
   showToast: (toast) => {