chore: remove portal from admin app — extracted to fiberops-portal (FIBEROPS-249)

- Delete app/(portal)/ route group (login, dashboard, invoices, tickets)
- Delete lib/portal-api.ts and lib/portal-auth-store.ts
- Remove Phase 9 portal tests (17–22) from business-flow E2E spec
- Keep portalAccessEnabled in Client type and admin client profile view

lib/portal-api.ts

@@ -1,33 +0,0 @@
-import axios from 'axios';
-
-const portalApi = axios.create({
-  baseURL: process.env.NEXT_PUBLIC_API_URL || 'http://192.168.1.167:3001',
-});
-
-portalApi.interceptors.request.use((config) => {
-  if (typeof window !== 'undefined') {
-    const token = localStorage.getItem('portal_token');
-    const authRaw = localStorage.getItem('portal_auth');
-    const tenantSlug = authRaw ? JSON.parse(authRaw)?.state?.tenantSlug : null;
-    if (token) config.headers.Authorization = `Bearer ${token}`;
-    if (tenantSlug) {
-      config.headers['x-tenant-slug'] = tenantSlug;
-      config.headers['X-Tenant-Slug'] = tenantSlug;
-    }
-  }
-  return config;
-});
-
-portalApi.interceptors.response.use(
-  (res) => res,
-  (err) => {
-    if (err.response?.status === 401 && typeof window !== 'undefined') {
-      localStorage.removeItem('portal_token');
-      localStorage.removeItem('portal_auth');
-      window.location.href = '/portal/login';
-    }
-    return Promise.reject(err);
-  }
-);
-
-export default portalApi;

lib/portal-auth-store.ts

@@ -1,49 +0,0 @@
-import { create } from 'zustand';
-import { persist } from 'zustand/middleware';
-import portalApi from './portal-api';
-
-interface PortalSubscriber {
-  accountNumber: string;
-  firstName: string;
-  lastName: string;
-}
-
-interface PortalAuthState {
-  subscriber: PortalSubscriber | null;
-  portalToken: string | null;
-  tenantSlug: string | null;
-  isAuthenticated: boolean;
-  login: (tenantSlug: string, accountNumber: string, password: string) => Promise<void>;
-  logout: () => void;
-}
-
-export const usePortalAuthStore = create<PortalAuthState>()(
-  persist(
-    (set) => ({
-      subscriber: null,
-      portalToken: null,
-      tenantSlug: null,
-      isAuthenticated: false,
-      login: async (tenantSlug, accountNumber, password) => {
-        const res = await portalApi.post('/api/v1/portal/auth/login', {
-          tenantSlug,
-          accountNumber,
-          password,
-        });
-        const { accessToken } = res.data;
-        localStorage.setItem('portal_token', accessToken);
-        set({
-          portalToken: accessToken,
-          tenantSlug,
-          subscriber: { accountNumber, firstName: '', lastName: '' },
-          isAuthenticated: true,
-        });
-      },
-      logout: () => {
-        localStorage.removeItem('portal_token');
-        set({ subscriber: null, portalToken: null, tenantSlug: null, isAuthenticated: false });
-      },
-    }),
-    { name: 'portal_auth' }
-  )
-);