Task: Merge verified queued-message send fix into main

Identity

Fast-forward the verified queued-message send repair 954b275f10 into local main and record its actual integration.

User explicitly requested main integration and confirmed releasing the completed prior task's ownership, adopting the main checkout, and retaining its three pre-existing untracked task records.
Loaded maintain-project-docs bundled release --force/start --adopt-existing succeeded; status matches this task, integration mode, main, worktree and base. Both gates passed. All peer scopes/intents/promotions were inspected read-only; the source task is ready, and historical placeholder peer scopes remain unknown without a concrete conflict on this bounded merge.
Source task records remain read-only. Preserve existing Pi/Host/Snapshot/Patch/queue authority, product configuration and user data. No subagents, push, installer build/replacement or production calls.

main fast-forwarded from 2cedc9df30 to 954b275f10 without conflicts. The source commit and its regression coverage are now on the actual main branch.
Recorded the source commit and integration boundary under current-state.md Integrated Through. No additional architecture or product decision is introduced; README already documents the restored queue behavior.
Existing package-122, package-123 and client-hang-diagnosis untracked records remain outside the commit and unchanged.
The installed 1.4.3 client was not updated; this handoff reports source integration only.

git merge --ff-only completed successfully; source commit ancestry on main and exact product-tree equality with 954b275 passed.
Reused the same-session verified source results: 57 affected unit tests, including 6 new red-to-green cases; typecheck; scoped ESLint; all Vite targets; Electron PI feature UI test 1/1. No behavior changed during fast-forward, so repeating these tests would not exercise a new integration combination.
Three preserved records are compared directly as bytes before/after integration; the task-aware drift gate also validates their adopted state and document write boundaries.
Final documentation drift and whitespace checks are performed before the integration record commit.

A replacement installer is still needed to deliver the fix to the user's installed client; no build, installation or publication is claimed here.
Cleanup awaiting user confirmation: task 20260912-chat-send-diagnosis-b6580605, worktree D:/Datas/OthersProjects/.codex-worktrees/makelore/20260912-chat-send-diagnosis-b6580605, branch codex/20260912-chat-send-diagnosis-b6580605-chat-send-diagnosis. Latest HEAD 954b275 is included in main, ownership is managed/ready and the source checkout is clean. The optional cleanup removes the checkout and ignored build/dependency outputs while preserving the branch and commit; until explicit approval arrives, retain it. The primary checkout is not a cleanup candidate.

None; the integration outcome has been recorded in current-state.md. All source records remain unchanged.