fix: resolve infinite recursion in admin_users RLS policy

The admin_users policy was checking if user is admin by querying
the same table, causing infinite recursion. Changed to allow users
to view their own admin record directly using auth.uid() = user_id.

This fixes the error: 'infinite recursion detected in policy for
relation admin_users'

src/app/api/debug-admin/route.ts

@@ -0,0 +1,48 @@
+import { createServerComponentClient } from '@supabase/auth-helpers-nextjs';
+import { cookies } from 'next/headers';
+import { NextResponse } from 'next/server';
+
+export async function GET() {
+    const supabase = createServerComponentClient({ cookies });
+
+    // Get current user
+    const { data: { user }, error: userError } = await supabase.auth.getUser();
+
+    if (userError || !user) {
+        return NextResponse.json({
+            success: false,
+            error: 'Not authenticated',
+            userError: userError?.message
+        });
+    }
+
+    // Check admin_users table
+    const { data: adminData, error: adminError } = await supabase
+        .from('admin_users')
+        .select('*')
+        .eq('user_id', user.id)
+        .single();
+
+    // Get all admin users (for debugging)
+    const { data: allAdmins, error: allAdminsError } = await supabase
+        .from('admin_users')
+        .select('*');
+
+    return NextResponse.json({
+        success: true,
+        currentUser: {
+            id: user.id,
+            email: user.email
+        },
+        adminCheck: {
+            data: adminData,
+            error: adminError?.message,
+            isAdmin: !!adminData
+        },
+        allAdmins: {
+            data: allAdmins,
+            error: allAdminsError?.message,
+            count: allAdmins?.length || 0
+        }
+    });
+}

src/services/track-api-usage.ts

@@ -189,6 +189,7 @@ export async function getGlobalApiStats(): Promise<ApiStats | null> {
  */
 export async function checkIsAdmin(userId: string): Promise<boolean> {
     try {
+        console.log('[checkIsAdmin] Checking admin status for user:', userId);
         const supabase = createServerComponentClient({ cookies });
 
         const { data, error } = await supabase
@@ -197,13 +198,18 @@ export async function checkIsAdmin(userId: string): Promise<boolean> {
             .eq('user_id', userId)
             .single();
 
+        console.log('[checkIsAdmin] Query result - data:', data, 'error:', error);
+
         if (error) {
+            console.log('[checkIsAdmin] Error occurred:', error.message);
             return false;
         }
 
-        return !!data;
+        const isAdmin = !!data;
+        console.log('[checkIsAdmin] Final result:', isAdmin);
+        return isAdmin;
     } catch (err) {
-        console.error('Error checking admin status:', err);
+        console.error('[checkIsAdmin] Exception:', err);
         return false;
     }
 }