Remove debug logging from server

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/index.js

@@ -77,17 +77,11 @@ async function readDatasetRuns() {
       path: HUB_DATASET_FILE,
       accessToken: HUB_TOKEN,
     });
-    // eslint-disable-next-line no-console
-    console.log('downloadFile response:', response ? 'ok' : 'null/undefined');
     if (!response) return [];
     const raw = await response.text();
-    // eslint-disable-next-line no-console
-    console.log('downloadFile raw length:', raw.length);
     const parsed = JSON.parse(raw);
     return Array.isArray(parsed) ? parsed : [];
   } catch (error) {
-    // eslint-disable-next-line no-console
-    console.error('readDatasetRuns error:', error?.statusCode, error?.message);
     if (error && typeof error === 'object' && 'statusCode' in error && error.statusCode === 404) {
       return [];
     }
@@ -127,7 +121,6 @@ app.get('/api/health', (_req, res) => {
     ok: true,
     storage: usingHubDataset() ? 'huggingface-dataset' : 'local-file',
     datasetRepo: HUB_DATASET_REPO || null,
-    tokenType: HUB_TOKEN.startsWith('hf_') ? 'user' : HUB_TOKEN ? 'jwt' : 'none',
   });
 });
 
@@ -215,7 +208,7 @@ if (process.env.NODE_ENV === 'production') {
 app.use((error, _req, res, _next) => {
   // eslint-disable-next-line no-console
   console.error(error);
-  res.status(500).json({ error: 'Internal server error', message: error?.message || String(error) });
+  res.status(500).json({ error: 'Internal server error' });
 });
 
 app.listen(PORT, () => {