Type Alias FileSql

The slice of ctx.storage.sql this module uses.

Structural rather than SqlStorage, so the store is drivable from anything that can run a statement -- which is what lets the gate lane test it against a real Durable Object handle without the two type surfaces having to agree on members nothing here touches.

type FileSql = {
    exec(
        sql: string,
        ...bindings: unknown[],
    ): { toArray(): Record<string, unknown>[] };
}