0.121.0

chore(release): bump to v0.121.0

- test(remote): align chatRunner and webRemoteDrilldown specs with shipped send/transcript contracts
- docs(validation): release-gate-green record — 2119 refuted, nothing landed
- docs(validation): lint-green-at-head review record
- test(web-remote): behavioural no-summary-push test replaces source-text smell
- chore(repo): untrack stray <path> sqlite MCP placeholder and ignore it
- docs(validation): sweep record for fix-phone-drop-summary-state
- docs(validation): phone read-and-reply plan record
- fix(prd): refuse duplicate bare slug within an Epic before NN allocation
- refactor(remote-app): drop per-tab summary state, listener and type
- feat(web-remote): cmd:chat:send returns send disposition
- chore(phone): delete dead SummaryPane component and its telemetry test
- feat(chat): enqueueExternalPrompt returns renderer disposition via ack registry
- docs(validation): macro inputs every press plan record
- feat(remote-app): macro input fields in NewSessionSheet, send macroId + inputs
- feat(web-remote): render HOT KEY macro inputs in cmd:session:create
- fix(macro): renderer renderMacroPrompt refuses undeclared placeholders, own-property reads, parity test
- fix(macro): saveMacro rejects prompt placeholders missing from merged inputs
- feat(macro): strict main-process macro prompt renderer and macroVisibleIn
- fix(remote): watch Main by tab sessionId, re-resolve late transcripts, drop per-turn summary push
- feat(remote-app): SessionScreen as readable chat with paging, pending bubble and polling
- feat(renderer): send returns ChatSendResult and onExternalSend reports it to main
- feat(remote): cmd:session:transcript serves paged conversation and resolves Main by tab sessionId
- feat(remote-app): paged transcript and typed send result in remoteApi
- feat(preload): add chat.reportExternalSendResult and ChatExternalSendResult contract
- feat(remote): add pure buildRemoteConversation for phone chat pages
- docs(manual): documents app v0.120.0 (no content change)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>