Notification updates

backend/src/core/config/config-loader.ts

@@ -123,6 +123,7 @@ const secretsSchema = z.object({
   postgres_password: z.string(),
   auth0_client_secret: z.string(),
   google_maps_api_key: z.string(),
+  resend_api_key: z.string(),
 });
 
 type Config = z.infer<typeof configSchema>;
@@ -171,6 +172,7 @@ class ConfigurationLoader {
       'postgres-password',
       'auth0-client-secret',
       'google-maps-api-key',
+      'resend-api-key',
     ];
 
     for (const secretFile of secretFiles) {
@@ -227,6 +229,9 @@ class ConfigurationLoader {
       },
     };
 
+    // Set RESEND_API_KEY in environment for EmailService
+    process.env['RESEND_API_KEY'] = secrets.resend_api_key;
+
     logger.info('Configuration loaded successfully', {
       configSource: 'yaml',
       secretsSource: 'files',