feat: add duration field to dataset entries and update related components for display and processing

src/app/actions/download-filtered-entries.ts

@@ -66,7 +66,7 @@ export async function downloadFilteredEntries(
     const row = [
       `"${entry.externalId}"`,
       entry.fileName,
-      '',
+      entry.durationMs?.toString() || '',
       entry.utteranceId || '',
       `"${(entry.utteranceText || '').replace(/"/g, '""')}"`,
       entry.speakerId,

src/app/actions/upload.ts

@@ -136,6 +136,7 @@ export async function processDatasetEntries(
           fileName: relativePath,
           dialect: row.dialect,
           iteration: parseInt(row.iteration, 10),
+          durationMs: row.duration_ms ? parseInt(row.duration_ms, 10) : undefined,
         });
       }
     }

src/app/admin/datasets/[id]/entries/[entryId]/page.tsx

@@ -117,6 +117,11 @@ export default async function DatasetEntryPage({ params }: DatasetEntryPageProps
               <AudioPlayer datasetId={datasetIdNum} fileName={entry.fileName} externalId={entry.externalId} />
             </div>
 
+            <div className="bg-white border border-gray-200 p-4 rounded-lg">
+              <p className="text-sm text-gray-600 mb-1">Duration (ms)</p>
+              <p className="text-lg font-semibold">{entry.durationMs?.toLocaleString() || '-'}</p>
+            </div>
+
             <div className="bg-white border border-gray-200 p-4 rounded-lg">
               <p className="text-sm text-gray-600 mb-1">Created</p>
               <p className="text-lg font-semibold">

src/lib/model/dataset_entry.ts

@@ -15,6 +15,7 @@ export const dataset_entry = sqliteTable('dataset_entry', {
   fileName: text('file_name').notNull(),
   dialect: text('dialect').notNull(),
   iteration: integer('iteration').notNull(),
+  durationMs: integer('duration_ms'),
   createdAt: integer('created_at', { mode: 'timestamp' })
     .notNull()
     .default(sql`(unixepoch())`),