fix: update pathCombine function to handle multiple URL segments for improved URL construction

src/frontend/src/services/api.ts

@@ -12,8 +12,8 @@ import { pathCombine } from '@/utils/paths';
 
 const isDevelopment = config.MODE === 'development';
 const BASE_URL = isDevelopment
-  ? pathCombine(config.VITE_API_URL, '/api')
-  : '/api';
+  ? pathCombine(config.VITE_API_URL, config.BASE_PATH, '/api')
+  : pathCombine(config.BASE_PATH, '/api');
 
 const apiClient = axios.create({
   baseURL: BASE_URL,

src/frontend/src/utils/paths.ts

@@ -1,13 +1,29 @@
 /**
- * Combines base URL and path, ensuring proper slash handling
- * @param baseUrl - Base URL (e.g., 'http://localhost:5172' or 'http://localhost:5172/')
- * @param path - Path to append (e.g., '/api' or 'api')
- * @returns Combined URL path
+ * Combines multiple URL segments, ensuring proper slash handling
+ * @param segments - URL segments to combine (e.g., 'http://localhost:5172', '/api', 'health')
+ * @returns Combined URL path with proper slash separators
+ * @example
+ * pathCombine('http://localhost:5172', '/api', 'health') // 'http://localhost:5172/api/health'
+ * pathCombine('/base', 'api/', '/endpoint') // '/base/api/endpoint'
+ * pathCombine('/', '/api') // '/api'
  */
-const pathCombine = (baseUrl: string, path: string): string => {
-  const trimmedBase = baseUrl.replace(/\/+$/, ''); // Remove trailing slashes
-  const trimmedPath = path.replace(/^\/+/, ''); // Remove leading slashes
-  return `${trimmedBase}/${trimmedPath}`;
+const pathCombine = (...segments: string[]): string => {
+  if (segments.length === 0) return '';
+  if (segments.length === 1) return segments[0];
+
+  // Process first segment (keep leading slash or protocol)
+  let result = segments[0].replace(/\/+$/, '');
+
+  // Process middle and last segments
+  for (let i = 1; i < segments.length; i++) {
+    const segment = segments[i].replace(/^\/+|\/+$/g, ''); // Remove leading and trailing slashes
+    if (segment) {
+      // Only add non-empty segments
+      result += `/${segment}`;
+    }
+  }
+
+  return result;
 };
 
 export { pathCombine };