refactor: streamline API calls and enhance configuration management

- Refactor multiple API routes to utilize a centralized configuration function for base URL and token management, improving code consistency and maintainability.
- Replace direct environment variable access with a unified config function in the `lib/api.ts` file.
- Remove redundant error handling and streamline response handling in various API endpoints.
- Delete unused job-related API routes and settings, simplifying the overall API structure.

apps/backoffice/app/api/folders/route.ts

@@ -1,39 +1,13 @@
 import { NextRequest, NextResponse } from "next/server";
+import { listFolders } from "@/lib/api";
 
 export async function GET(request: NextRequest) {
-  const apiBaseUrl = process.env.API_BASE_URL || "http://api:7080";
-  const apiToken = process.env.API_BOOTSTRAP_TOKEN;
-  
-  if (!apiToken) {
-    return NextResponse.json({ error: "API token not configured" }, { status: 500 });
-  }
-  
   try {
     const { searchParams } = new URL(request.url);
-    const path = searchParams.get("path");
-    
-    let apiUrl = `${apiBaseUrl}/folders`;
-    if (path) {
-      apiUrl += `?path=${encodeURIComponent(path)}`;
-    }
-    
-    const response = await fetch(apiUrl, {
-      headers: {
-        Authorization: `Bearer ${apiToken}`,
-      },
-    });
-    
-    if (!response.ok) {
-      return NextResponse.json(
-        { error: `API error: ${response.status}` },
-        { status: response.status }
-      );
-    }
-    
-    const data = await response.json();
+    const path = searchParams.get("path") || undefined;
+    const data = await listFolders(path);
     return NextResponse.json(data);
   } catch (error) {
-    console.error("Proxy error:", error);
     return NextResponse.json({ error: "Failed to fetch folders" }, { status: 500 });
   }
 }