cleanup: replace FIXMEs with tracked issues

examples/headless-agent/tests/compaction.e2e.ts

@@ -10,9 +10,9 @@ import { SessionId } from '@deepseek-ai/dsh-session'
 /**
  * Key-gated smoke for mid-session compaction. It verifies the compact event
  * pair, replacement of older surface nodes, and a final answer after compaction.
+ * A keyless assembled snapshot with an explicit summarization replay override
+ * is tracked in https://github.com/deepseek-harness/deepseek-harness/issues/1971.
  */
-// FIXME(compaction-snapshot): this is the only full compaction coverage because
-// replay cannot serve the summarizer's unlogged model call.
 
 let workdir: string | undefined
 let ctx: Context | undefined