fix: S1 安全冲刺——切库清空标签页+冲刷(FR-V6)、重命名/移动同步标签页路径(FR-T7)、默认库路径设置页(FR-V5)；vaultBrowse IPC+pickDirectory；tab-store closeAll/renamePath；store resetEditor/syncCurrentPath；safety E2E 2 项

apps/desktop/src/renderer/store.ts

@@ -27,6 +27,8 @@ interface EditorState {
   addLink: (link: string) => void;
   removeLink: (link: string) => void;
   saveNow: () => Promise<void>;
+  resetEditor: () => void;                          // FR-V6: 切库时重置编辑区
+  syncCurrentPath: (oldPath: string, newPath: string) => void; // FR-T7: 重命名/移动后同步当前文档路径
 }
 
 // 简单的每文档保存队列（M1 单文档编辑）
@@ -111,4 +113,13 @@ export const useStore = create<EditorState>((set, get) => ({
       console.error('save failed', e);
     }
   },
+
+  resetEditor: () => { set({ currentPath: null, title: '', body: '', meta: {}, saveState: 'saved' }); },
+
+  syncCurrentPath: (oldPath, newPath) => {
+    const { currentPath } = get();
+    if (!currentPath) return;
+    if (currentPath === oldPath) { set({ currentPath: newPath }); return; }
+    if (oldPath && currentPath.startsWith(oldPath + '/')) set({ currentPath: newPath + currentPath.slice(oldPath.length) });
+  },
 }));