Implement a Write-Ahead Log (WAL) key-value store in a single Python script at /app/kv store.py . The store…

Implement a Write-Ahead Log (WAL) key-value store in a single Python script at /app/kv store.py . The store…: a task in termgrade-bandcentral-gemma4-31b-bash: TermGrade Band-Central: the 151-task selection and its splits (Harbor dataset). The WAL file /data/wal.log contains one record per line…

The task

The WAL file `/data/wal.log` contains one record per line. Each line uses the following format: - `SET <base64_key> <base64_value>\n` - `DELETE <base64_key>\n`

Part of ai-and/termgrade-bandcentral-gemma4-31b-bash.