docs: record background Agent timestamp update

.project-docs/30-worklog/tasks/20261013-chat-message-time-64ebac32.md

@@ -8,7 +8,7 @@
 - Worktree: /Users/chillishark/Makelore 麦洛/.codex-worktrees/makelore/20261013-chat-message-time-64ebac32
 - Base commit: 2899009215b1de8e28b84fc108e880c6e68a6098
 - Owner: codex
-- Status: Planning
+- Status: Ready for Integration
 
 ## Scope
 
@@ -85,3 +85,12 @@
 - Added9 meaningful UI regressions for persisted dates, invalid values, next-day reopening, live hydration, partial history, oldRun source identity, user-ID isolation and terminal-history failure. Updated existing Electron UI fixture with authoritative created_at and semantictime/label assertions. Full native Electron E2E is not run because it creates visible windows; focused Renderer boundary tests and later read-only actual-app DOM verification provide this request's coverage without desktop activation.
 - Current assembled source tests:120/120 across10 focused unit suites; typecheck and production Vite/Main/Preload/utility build passed. Scoped ESLint passed with only the existing two CloudChat warnings (component/constants fast-refresh export and generation ref cleanup). Independent source review found no blocking defect. Diff/drift checks pass. Earlier43focused/9new tests are included in120, not additional distinct coverage.
 - Preserved actual2b2f7b9 product deltas and approved timestamp code only, excluded foreign project docs. Stage helpers are preparation only at this point; source commit will be bound before any activation. No live questions/cancellations/config mutations or application refresh occurred yet.
+
+## Completed Background Timestamp Update
+
+- Final clean implementation commit64b4a84a2d07889908cef16656341986c5a8f11b compiled and staged at /Users/chillishark/Makelore 麦洛/.trial-runtime/chat-time-20261013-64ebac32/runtime, binding actual predecessor2b2f7b96b0e2c378c706f29099ffb974dc1acdbf and its manifest SHA chain. Root reviewed/finalized helpers before binding, adding modern user/tenant account identity hashing, stable original file-URL validation and preventing a previously visible chat from disappearing during time verification.
+- All Main/preload/resources/package artifact bytes match the actual immutable Main snapshot. Source runtime delta from current2b is exactly CloudChat.tsx and agent-chat.css; preserved all other accepted changes. Capture-only preflight confirmed idle, no input/unsaved state, files, tasks, leases, blocked unload, dialogs or held/visible secret receipts. No discard authorization used.
+- Root activated the Renderer overlay and prepare.py--verify passed active-verified. Main PID9968, Host API58003, profile/login/account, stable file URL/hash/page, bounds/visibility/window state and foreground PID83608 remain. No temporary home navigation, no Main restart, new model call, input/configuration mutation or app focus action. Inspector closed successfully. Verification receipt: /Users/chillishark/Makelore 麦洛/.trial-runtime/chat-time-20261013-64ebac32/verification-receipt.json.
+- Loaded new assets/mount verified in the real app. The user's current page had no visible chat message articles, so actual message-time DOM visibility is explicitly pending their natural next chat opening; root did not navigate just to create that evidence. Timestamp semantics/layout/hydration were checked in the120passing focused UI/unit tests and updated E2E assertions; full native E2E not run to preserve desktop focus. Do not claim a real visible-message screenshot check.
+- Current runtime now reports Renderer64b4a84/source ownworktree; Main source remains7c51bb4a008e388071ec37156adeae80eff24167. Stage retains the actual old Renderer rollback binding. Application is updated for normal user viewing. Source branch/worktree are retained; no merge/push or cleanup.
+- Outcome complete: requested existing-field send/reply timestamps implemented, tested and applied in background. Queue-presentation redesign, wait-duration and the separate upstream replay fix are not included in this time-only result. Earlier exact-finish proposal is superseded by the user's simple message-time request.