feat(assets): add dimension analysis and authorized user previews

Refactor asset drilldowns with combined dimension filters, parent summaries and progressive loading. Add the hidden /who read-only permission preview with scoped authorization, identity mapping and audit logging. Refine inventory counts and AI问数 presentation.

src/auth/useAuth.ts

@@ -1,25 +1,27 @@
 import { createContext, useContext } from 'react';
 
+export interface AuthUser {
+  userId: string;
+  userName: string;
+  loginName?: string;
+  permissionLevel: string;
+  depCode?: string;
+  depName: string;
+  roles?: string[];
+}
 export interface AuthState {
   isLoading: boolean;
   isAuthenticated: boolean;
-  user: {
-    userId: string;
-    userName: string;
-    permissionLevel: string;
-    depName: string;
-    roles?: string[];
-  } | null;
+  user: AuthUser | null;
   error: string | null;
+  actor?: AuthUser | null;
+  canPreview?: boolean;
+  preview?: { user: AuthUser; expiresAt: string } | null;
+  identityVersion?: number;
+  previewNotice?: string | null;
+  startPreview?: (userId: string) => Promise<void>;
+  stopPreview?: () => Promise<void>;
+  clearPreviewNotice?: () => void;
 }
-
-export const AuthContext = createContext<AuthState>({
-  isLoading: true,
-  isAuthenticated: false,
-  user: null,
-  error: null,
-});
-
-export function useAuth() {
-  return useContext(AuthContext);
-}
+export const AuthContext = createContext<AuthState>({ isLoading: true, isAuthenticated: false, user: null, error: null });
+export function useAuth() { return useContext(AuthContext); }