From c2633823fb5bfe39d9bb2d284d8bec6c111b9a06 Mon Sep 17 00:00:00 2001
From: Adam Malczewski <github@tradam.dev>
Date: Mon, 29 Jun 2026 12:12:18 +0900
Subject: feat(chat): cancel a queued steering message from the UI
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Implements the frontend for the cancel-queued-message backend feature
(transport-contract 0.23.0 → 0.24.0, ADDITIVE). While a turn is generating
and a user message is queued (awaiting steering delivery), the user can now
cancel a single queued message by id so it never runs.

- Consume the contract: regenerate the .dispatch/transport-contract.reference.md
  mirror to 0.24.0; add chat.queue.cancel to the exhaustive WsClientMessage
  guard (core/wire/conformance.ts) + its test.
- ChatTransport port accepts ChatQueueCancelMessage; cancelQueuedMessage(id)
  on the chat store + app store sends chat.queue.cancel { conversationId,
  messageId } (fire-and-forget, idempotent — the server no-ops an already-
  drained/unknown id).
- UI: a × cancel affordance per queued row in MessageQueueList.svelte,
  threaded through SurfaceView's onCancelQueuedMessage (dispatched on
  rendererId, never the surface id) and wired to store.cancelQueuedMessage.
  Optimistic removal (pure selectVisibleMessages/reconcileCancelledIds in
  logic/message-queue.ts) hides the row on click and reconciles from the
  message-queue surface's post-cancel snapshot. No new event handling — the
  existing surface subscription reflects the result.

Tests: +12 (chat store cancel op ×3, optimistic-removal logic ×11 already
existed pattern, MessageQueueList component cancel behavior ×9).

Repo fix: package.json + bun.lock were still pinning file:../dispatch-backend/...
(stale from the dispatch-backend → backend rename) — corrected to
file:../backend/packages/...; bun install now resolves natively with no
worktree symlink hack.

typecheck 0/0, 1140 tests green (run twice), biome clean, build OK.
---
 package.json | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'package.json')

diff --git a/package.json b/package.json
index ea6c751..f772728 100644
--- a/package.json
+++ b/package.json
@@ -14,17 +14,17 @@
     "check:fix": "biome check --write ."
   },
   "dependencies": {
-    "@dispatch/transport-contract": "file:../dispatch-backend/packages/transport-contract",
-    "@dispatch/ui-contract": "file:../dispatch-backend/packages/ui-contract",
-    "@dispatch/wire": "file:../dispatch-backend/packages/wire",
+    "@dispatch/transport-contract": "file:../backend/packages/transport-contract",
+    "@dispatch/ui-contract": "file:../backend/packages/ui-contract",
+    "@dispatch/wire": "file:../backend/packages/wire",
     "dompurify": "^3.4.5",
     "highlight.js": "^11.11.1",
     "marked": "^18.0.4",
     "marked-highlight": "^2.2.4"
   },
   "overrides": {
-    "@dispatch/ui-contract": "file:../dispatch-backend/packages/ui-contract",
-    "@dispatch/wire": "file:../dispatch-backend/packages/wire"
+    "@dispatch/ui-contract": "file:../backend/packages/ui-contract",
+    "@dispatch/wire": "file:../backend/packages/wire"
   },
   "devDependencies": {
     "@biomejs/biome": "^2.4.16",
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