feat: Add prayer chains, social sharing, and testimony wall

- Add PrayerChain component for visualizing linked prayers
- Add SharePrayer component with social media integration (Twitter, Facebook, WhatsApp, copy link)
- Create /testimonies page for public answered prayer stories
- Update Firestore rules for public testimony access
- Enhance Organization tab with prayer chains
- Add Testimonies navigation tab
- Fix Firebase Admin SDK integration for server-side operations
- Improve email system with proper server-side authentication
- Update prayer form to handle optional fields correctly
- Deploy updated Firestore security rules

check-smtp.js

@@ -0,0 +1,42 @@
+// Check if SMTP config exists in Firestore
+// Run with: node check-smtp.js
+
+import { initializeApp } from 'firebase/app';
+import { getFirestore, doc, getDoc } from 'firebase/firestore';
+
+const firebaseConfig = {
+  apiKey: "AIzaSyAHtvhdtBxNwf0UE3Fp5P0v1vITZKhLMJw",
+  authDomain: "prayer-app-6701f.firebaseapp.com",
+  projectId: "prayer-app-6701f",
+  storageBucket: "prayer-app-6701f.firebasestorage.app",
+  messagingSenderId: "555011794707",
+  appId: "1:555011794707:web:a3d60bdee742578cca1ce6"
+};
+
+const app = initializeApp(firebaseConfig);
+const db = getFirestore(app);
+
+const checkSMTPConfig = async () => {
+  try {
+    console.log('🔍 Checking SMTP configuration...');
+    const configDoc = await getDoc(doc(db, 'config', 'smtp'));
+
+    if (configDoc.exists()) {
+      const config = configDoc.data();
+      console.log('✅ SMTP config found:');
+      console.log('   Host:', config.host);
+      console.log('   Port:', config.port);
+      console.log('   Secure:', config.secure);
+      console.log('   User:', config.user ? 'Set' : 'Not set');
+      console.log('   Pass:', config.pass ? 'Set' : 'Not set');
+      console.log('   From:', config.from);
+    } else {
+      console.log('❌ SMTP configuration not found in Firestore!');
+      console.log('   You need to add SMTP config to config/smtp document');
+    }
+  } catch (error) {
+    console.error('❌ Error checking SMTP config:', error);
+  }
+};
+
+checkSMTPConfig();