Include output tokens from last response in getContextWindowUsage calculation. Output tokens become part of next request's input (conversation history), so they must be counted to avoid overestimating remainingTokens. This aligns with preemptive-compaction's calculation which already includes output tokens correctly. 🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)