The K8s log follow stream replays the trailing few seconds of output on
every reconnect because `sinceSeconds` uses integer-second granularity
with a small safety buffer. FAR-105 dedupped those replays at the final
parser (parse.ts), but the streaming UI consumes raw onLog chunks and
still showed each replayed assistant/tool event as a fresh entry — which
is how the duplicate "Three nits to fix…" blocks in the screenshot
appeared between successive tool calls.
Fix: add a stateful line-level dedup filter around onLog, shared across
reconnects. Claude stream-json events are keyed by their stable
structural IDs (message.id, tool_use_id, session_id); non-JSON output
(paperclip status lines, shell output) passes through unchanged.
- New `src/server/log-dedup.ts` + tests: LogLineDedupFilter handles
chunk-to-line buffering, replay dedup, and end-of-stream flush.
- `streamPodLogs` instantiates one filter per run so dedup state persists
across reconnect attempts.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Test User