feat: integrate all backend APIs into frontend apps

- Fix API service paths to use /v1/iam/, /v1/dimentorin/, /v1/gacha/, /v1/hackathon/ prefixes
- Add roles, permissions, events, testimonials, sessions API services and hooks
- Rewrite gacha service with full CRUD + roll/claim endpoints
- Replace all mock data in backoffice pages with real API calls (accounts, roles, permissions, gacha-roll, dashboard, sessions, users-dimentorin, feedback-review, settings)
- Wire dimentorin mentoring list to useMentorList with search + pagination
- Wire dimentorin mentor detail page to useMentorById, pass real data to all sections
- Wire appointment modal to useBookSession with controlled schedule inputs
- Wire gacha app Spin Now to useExecuteGachaRoll, show credits and real items

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

libs/service/src/api/backoffice.ts

@@ -1,52 +1,6 @@
-import axios from 'axios';
-import { useAuthStore } from '../hooks/auth';
-
-const BACKOFFICE_API_URL = 'https://api.hackathon.imphnen.dev/api/v1';
-
-export const backofficeApi = axios.create({
-  baseURL: BACKOFFICE_API_URL,
-  headers: {
-    'Content-Type': 'application/json',
-  },
-});
-
-backofficeApi.interceptors.request.use(
-  (config) => {
-    const { session } = useAuthStore.getState();
-    if (session?.token?.access_token) {
-      config.headers.Authorization = `Bearer ${session.token.access_token}`;
-    }
-    return config;
-  },
-  (error) => {
-    return Promise.reject(new Error(error.message || 'Request failed'));
-  }
-);
-
-backofficeApi.interceptors.response.use(
-  (response) => response,
-  (error) => {
-    if (error.response?.status === 401) {
-      const isAuthPage =
-        globalThis.window !== undefined &&
-        globalThis.location.pathname.startsWith('/auth');
-
-      if (!isAuthPage) {
-        useAuthStore.getState().clearSession();
-        if (globalThis.window !== undefined) {
-          globalThis.location.href = '/auth/login';
-        }
-      }
-    }
-
-    const backendMsg = error?.response?.data?.message;
-    if (backendMsg && typeof backendMsg === 'string') {
-      return Promise.reject(new Error(backendMsg));
-    }
-
-    return Promise.reject(new Error(error.message || 'An error occurred'));
-  }
-);
+// All API calls now go through the main `api` instance (api.imphnen.dev).
+// This file re-exports `api` as `backofficeApi` for backward compatibility.
+export { api as backofficeApi } from './index';
 
 export interface BackofficeApiResponse<T> {
   data: T;