refactor: improve service layer logging and configuration

- Change email service logging from console.log to console.warn for better visibility
- Update mailgun and couchdb configuration with improved error handling
- Enhance database seeder with better logging and error management
- Improve service factory patterns for better testability

services/mailgun.config.ts

@@ -1,6 +1,8 @@
 // Mailgun Configuration
 // This file handles Mailgun credentials and configuration
 
+import { getEnv } from '../utils/env';
+
 export interface MailgunConfig {
   apiKey: string;
   domain: string;
@@ -20,30 +22,15 @@ const defaultConfig: MailgunConfig = {
 
 // Load configuration from environment variables or use defaults
 export const getMailgunConfig = (): MailgunConfig => {
-  // Check if running in browser environment
-  const isClient = typeof window !== 'undefined';
+  const env = getEnv();
 
-  if (isClient) {
-    // In browser, use Vite environment variables
-    // Note: Vite environment variables are available at build time
-    const env = (import.meta as any).env || {};
-    return {
-      apiKey: env.VITE_MAILGUN_API_KEY || defaultConfig.apiKey,
-      domain: env.VITE_MAILGUN_DOMAIN || defaultConfig.domain,
-      baseUrl: env.VITE_MAILGUN_BASE_URL || defaultConfig.baseUrl,
-      fromName: env.VITE_MAILGUN_FROM_NAME || defaultConfig.fromName,
-      fromEmail: env.VITE_MAILGUN_FROM_EMAIL || defaultConfig.fromEmail,
-    };
-  } else {
-    // In Node.js environment (if needed for SSR)
-    return {
-      apiKey: process.env.MAILGUN_API_KEY || defaultConfig.apiKey,
-      domain: process.env.MAILGUN_DOMAIN || defaultConfig.domain,
-      baseUrl: process.env.MAILGUN_BASE_URL || defaultConfig.baseUrl,
-      fromName: process.env.MAILGUN_FROM_NAME || defaultConfig.fromName,
-      fromEmail: process.env.MAILGUN_FROM_EMAIL || defaultConfig.fromEmail,
-    };
-  }
+  return {
+    apiKey: env.VITE_MAILGUN_API_KEY || defaultConfig.apiKey,
+    domain: env.VITE_MAILGUN_DOMAIN || defaultConfig.domain,
+    baseUrl: env.VITE_MAILGUN_BASE_URL || defaultConfig.baseUrl,
+    fromName: env.VITE_MAILGUN_FROM_NAME || defaultConfig.fromName,
+    fromEmail: env.VITE_MAILGUN_FROM_EMAIL || defaultConfig.fromEmail,
+  };
 };
 
 // Check if Mailgun is properly configured (not using demo values)