feat: implement manual user validation and user deletion flow

src/lib/auth.ts

@@ -40,6 +40,31 @@ export async function signIn(email: string, password: string): Promise<AuthSessi
   }
 
   const data = await response.json();
+
+  // Validate status before signing in
+  try {
+    const statusRes = await fetch('/api/users-admin', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${data.access_token}`
+      },
+      body: JSON.stringify({ action: 'check-status' })
+    });
+
+    if (!statusRes.ok) {
+      const err = await statusRes.json().catch(() => ({}));
+      throw new Error(err.error || 'Failed to verify account validation status.');
+    }
+
+    const statusData = await statusRes.json();
+    if (!statusData.validated) {
+      throw new Error('Tu usuario aún no ha sido validado por un administrador.');
+    }
+  } catch (err: any) {
+    throw new Error(err.message || 'Error de validación del usuario.');
+  }
+
   const session: AuthSession = {
     access_token: data.access_token,
     refresh_token: data.refresh_token,