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perf(serve): SSE live pump reads incrementally #137

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xiaomo merged 1 commits from fix/130-sse-incremental into main 2026-05-08 15:00:45 +00:00
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Author SHA1 Message Date
xingyue 61fc1cfe1b perf(serve): SSE live pump reads incrementally instead of full file 
Use Bun.file().slice() to read only new bytes from the last known
offset instead of re-reading the entire JSONL file on every fs watch.

- readNewBytes() helper with byte-offset tracking
- Handles file truncation (resets offset)
- Early return when no new data

Closes #130
 2026-05-08 18:14:04 +08:00