- Persist signed message blocks (`text`, `thinking`, `toolCall`) and encrypted reasoning payloads verbatim during session serialization instead of clearing or truncating them.
- Preserve signature keys instead of replacing them with empty strings when they exceed persistence size limits.
- Exempt official first-party OpenAI and Anthropic API endpoints from the leaked-thinking stream healing wrapper to prevent misfires on legitimate visible text fences.
- Bumped the collaborative protocol version (`COLLAB_PROTO`) from 2 to 3.
- Required protocol-3 to coordinate `ui-request`, `ui-request-end`, and `ui-response` frames.
- Rejected older protocol-2 guests at handshake to prevent host-asked requests from hanging.
- Updated verification tests and CI installation check scripts to expect protocol version 3.
- Added `rewrite-changelog.ts` and `fix-changelogs.ts` utilities to automate the consolidation of release notes using LLM-assisted processing.
- Updated multiple internal changelog files by consolidating redundant entries and improving phrasing for readability.
- Implemented `previewLine` utility in `coding-agent` to prevent visual spillover in status rows by managing text truncation and whitespace.
- Updated `package.json` with new workflow scripts for managing package-level change histories and documentation indexes.
The host used to ship the entire transcript inside a single welcome
frame, so a multi-MB session spent the guest's 30s first-welcome
timeout on the relay transfer itself: ~1.3 MB took ~3s, ~4.2 MB took
~12s, and ~13.6 MB never arrived before the guest gave up with
'timed out waiting for the host's welcome'.
Bump COLLAB_PROTO to 2 and split the welcome:
- welcome carries metadata only (header, state, agents, entryCount,
readOnly) and lands in well under one second.
- a train of snapshot-chunk frames (SNAPSHOT_CHUNK_BYTES = 512 KB,
oversize entries ship alone) carries the transcript. Last chunk
flips final: true; an empty snapshot still emits one final chunk.
- the host queues welcome + chunks synchronously inside #handleHello,
preserving the host comment's ordering invariant (later broadcast
frames cannot interleave between them).
- the TUI guest accumulates chunks under a SNAPSHOT_PROGRESS_TIMEOUT_MS
that resets per chunk; only after final does it write the replica
jsonl, switchSession, and render. The first-welcome timeout still
guards arrival of the small welcome.
- the collab-web GuestClient streams entries into the snapshot as
chunks arrive and flips phase to 'live' on final.
Includes a contract test (in-process relay) asserting the welcome is
metadata-only, the chunk train fans the 1.5 MB synthetic transcript
across multiple frames with only the last marked final, and the
flattened entries match the source snapshot.
Fixes#3144
can1357