feat: exam actions and data safety fixes

docs/scripts/reset-db.ts

@@ -16,8 +16,18 @@ async function reset() {
   `)
 
   // Drop each table
-  for (const row of (tables[0] as unknown as any[])) {
-    const tableName = row.TABLE_NAME || row.table_name
+  const rows = (tables as unknown as [unknown])[0]
+  if (!Array.isArray(rows)) return
+
+  for (const row of rows) {
+    const record = row as Record<string, unknown>
+    const tableName =
+      typeof record.TABLE_NAME === "string"
+        ? record.TABLE_NAME
+        : typeof record.table_name === "string"
+          ? record.table_name
+          : null
+    if (!tableName) continue
     console.log(`Dropping table: ${tableName}`)
     await db.execute(sql.raw(`DROP TABLE IF EXISTS \`${tableName}\`;`))
   }