refactor: migrate fully to Supabase, remove Firebase/Render/Python backend

- DELETED: entire backend/ (Python/FastAPI — replaced by Supabase)
- DELETED: old/ directory (obsolete code)
- DELETED: render.yaml, inject_api.py, check_tags.py, PENDING_FOR_TOMORROW.md
- DELETED: frontend/src/firebaseConfig.ts (Firebase Auth replaced by Supabase Auth)
- DELETED: frontend/src/services/apiClient.ts (HTTP client for dead backend)

- MIGRATED services to Supabase native:
  schedulesService, favoritesService, usersService,
  telemetryService (stub), reportsService, analyticsService (stub)

- MIGRATED stores/favorites.ts to Supabase direct queries
- MIGRATED views: SplashScreen, AdminTaxis, AdminDrivers, StrategicAnalytics
- MIGRATED utils/imageUrl.ts to Supabase Storage URLs

- FIXED router/index.ts: guard now uses supabase.auth.getSession()
  instead of old localStorage auth_token (fixes logout + map loading)
- FIXED AuthView.vue: removed aggressive watch({ immediate: true })
  that caused wrong redirects on map route
- FIXED SplashScreen.vue: navigate() now reads Supabase session + role
- FIXED RLS: added INSERT policy on public.users for trigger
- CONFIRMED: admin@sibu.com assigned ADMIN role in Supabase

frontend/src/services/usersService.ts

@@ -1,27 +1,35 @@
-import { apiClient } from './apiClient';
+import { supabase } from '@/supabase';
 
 export const usersService = {
     async searchUsers(email: string) {
-        const response = await apiClient.get('/api/users/search', {
-            params: { email }
-        });
-        return response.data;
+        const { data, error } = await supabase.from('users').select('*').ilike('email', `%${email}%`)
+        if (error) throw new Error(error.message)
+        return data
     },
 
     async getUserDetails(userId: string) {
-        const response = await apiClient.get(`/api/users/${userId}`);
-        return response.data;
+        const { data, error } = await supabase.from('users').select('*').eq('id', userId).single()
+        if (error) throw new Error(error.message)
+        return data
     },
 
     async getPendingDrivers() {
-        const response = await apiClient.get('/api/users/pending-drivers');
-        return response.data;
+        const { data, error } = await supabase
+            .from('driver_profiles')
+            .select('*, user:users(*)')
+            .eq('users.is_verified', false)
+        if (error) throw new Error(error.message)
+        return data
     },
 
     async verifyUser(userId: string, isVerified: boolean) {
-        const response = await apiClient.post(`/api/users/${userId}/verify`, null, {
-            params: { is_verified: isVerified }
-        });
-        return response.data;
+        const { data, error } = await supabase
+            .from('users')
+            .update({ is_verified: isVerified })
+            .eq('id', userId)
+            .select()
+            .single()
+        if (error) throw new Error(error.message)
+        return data
     }
 };