Delay outgoing messages while the peer in the same (peerId, threadId)
chat is live-typing an incoming message, gated via a new per-account
Postbox `.allTypingDrafts` view feeding a synchronous Set membership
check inside PendingMessageManager.
Postbox:
- Add `AllTypingDraftsView` tracking `Set<PeerAndThreadId>` of active
typing drafts; expose via `PostboxViewKey.allTypingDrafts`.
- Disambiguate `PostboxViewKey` hash arms for `.typingDrafts` (constant
prefix 23) and `.contacts` (16 → 24) to avoid runtime collisions
with peerId-only arms and `.combinedReadState`. Hash values are
runtime-only, so this is safe.
PendingMessageManager:
- Add `.waitingForSendGate(groupId:content:)` parking state for single
messages and albums whose upload finished but are gated on a
typing-draft-clearing event; update `groupId` accessor and
`dataForPendingMessageGroup` so partially-parked albums drain on
gate open.
- Add `.waitingForForwardSendGate` parking state for forwards (no
associated values) so drain section (1) routes single non-grouped
messages via `commitSendingSingleMessage` and section (3) routes
forwards via `sendGroupMessagesContent`, avoiding the double-dispatch
that occurred when forwards reused `.waitingForSendGate`.
- Subscribe to `.allTypingDrafts`; wire the gate at single-message,
album, and forward send paths and at drain.
- Cleanup parked forwards on pending-message removal; snapshot
Dictionary keys before iterating to avoid mutation during iteration.
Specs and plan documents are included under `docs/superpowers/`.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
isaacandClaude Opus 4.7
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