feat: Implement authentication system with token refresh and initial instructor dashboard with course management.

frontend_management/services/auth.service.ts

@@ -211,6 +211,33 @@ export const authService = {
             baseURL: config.public.apiBaseUrl as string,
             body: data
         });
+    },
+
+    async refreshToken(currentRefreshToken: string): Promise<{ token: string; refreshToken: string }> {
+        const config = useRuntimeConfig();
+        const useMockData = config.public.useMockData as boolean;
+
+        if (useMockData) {
+            // Mock: return new tokens
+            await new Promise(resolve => setTimeout(resolve, 500));
+            return {
+                token: 'mock-new-jwt-token-' + Date.now(),
+                refreshToken: 'mock-new-refresh-token-' + Date.now()
+            };
+        }
+
+        if (!currentRefreshToken) {
+            throw new Error('No refresh token available');
+        }
+
+        // Real API
+        const response = await $fetch<{ token: string; refreshToken: string }>('/api/auth/refresh', {
+            method: 'POST',
+            baseURL: config.public.apiBaseUrl as string,
+            body: { refreshToken: currentRefreshToken }
+        });
+
+        return response;
     }
 };