fix: ensure node-fetch is available and report errors

api/dropbox/[...path].ts

@@ -1,4 +1,5 @@
 import type { VercelRequest, VercelResponse } from '@vercel/node';
+import fetch from 'node-fetch'; // Ensure fetch is available
 
 export default async function handler(req: VercelRequest, res: VercelResponse) {
     // Allow CORS
@@ -60,7 +61,8 @@ export default async function handler(req: VercelRequest, res: VercelResponse) {
         res.status(200).send(data);
 
     } catch (error) {
+    } catch (error: any) {
         console.error('Proxy Error:', error);
-        res.status(500).json({ error: 'Failed to fetch data from Dropbox' });
+        res.status(500).json({ error: 'Failed to fetch data from Dropbox', details: error.message });
     }
 }

package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.0.0",
       "dependencies": {
         "@google/genai": "^1.30.0",
+        "node-fetch": "^3.3.2",
         "papaparse": "^5.5.3",
         "react": "^19.2.0",
         "react-dom": "^19.2.0",
@@ -3873,7 +3874,6 @@
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -4125,6 +4125,7 @@
       "integrity": "sha512-w8GmOxZfBmKknvdXU1sdM9NHcoQejwF/4mNgj2JuEEdRaHwwF12K7e9eXn1nLZ07ad+du76mkVsyeb2rKGllsA==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@types/estree": "1.0.8"
       },

package.json

@@ -3,6 +3,9 @@
   "private": true,
   "version": "0.0.0",
   "type": "module",
+  "engines": {
+    "node": ">=18.0.0"
+  },
   "scripts": {
     "dev": "vite",
     "build": "vite build",
@@ -10,6 +13,7 @@
   },
   "dependencies": {
     "@google/genai": "^1.30.0",
+    "node-fetch": "^3.3.2",
     "papaparse": "^5.5.3",
     "react": "^19.2.0",
     "react-dom": "^19.2.0",
@@ -23,4 +27,4 @@
     "typescript": "~5.8.2",
     "vite": "^6.2.0"
   }
-}
+}