Fixes HWLAB #775 round-1 regression vs pre-React `app.ts` /
`app-conversation.ts` / `app-device-pod.ts` / `app-trace.ts` /
`code-agent-status.ts`. This PR lays the foundation for rounds 2-7
by restoring three of the three explicitly named regressions:
1. **Inactivity timeout** (the "应该是无活动超时，而非全超时" line)
- `services/api/client.ts` `fetchJson` / `fetchText` now accept
`activityRef`; an internal `schedule()` re-evaluates
`remainingMs = timeoutMs - (now - lastActivityAt)` every 1s, so
long-running fetches stay alive while upstream keeps emitting
trace events. The AbortError now distinguishes "总超时" vs
"无活动超时（idle Ns；waitingFor=…；lastEventLabel=…）".
- Mirrors pre-React `app-device-pod.ts:1219-1293` `fetchJson` contract.
2. **Code Agent status 23 rows** (the "裸 JSON 出现" line)
- New `state/code-agent-status.ts` (`classifyCodeAgentStatusSummary`,
`codeAgentRuntimePathFromMessage`, `codeAgentSummaryRows`) lifts
the 23-row pre-React `codeAgentSummaryRows` into React; rows cover
codeAgent.status, provider/mode/backend, capabilityLevel, session,
sessionId/status, 会话提示, workspace, sandbox, runnerKind,
protocol, implementationType, providerTrace.{command,terminalStatus,
failureKind}, 运行路径语义, toolCalls, skills, conversation facts,
runnerTrace, readiness blockers, last traceId, 当前部署 revision.
- ConversationPanel's `<CodeAgentSummary>` now renders the 23 rows
through `codeAgentSummaryRows(summary)`. Blockers render through a
collapsible "展开 readiness 原始 JSON" disclosure so unmodeled
blockers stay inspectable without dumping bare JSON inline.
3. **Rich trace panel** (the "Trace 过程事件实时滚动，事件渲染等全丢了" line)
- New `components/conversation/MessageTracePanel.tsx` replaces
`ConversationPanel`'s inline `<TracePanel>`: 32-row tail (was 16)
with `traceUiKey` storage, default-open per status, toolbar with
`count / follow / jump-to-bottom / lastEventLabel / last ts / short
traceId`, per-row tone (`tone-border-<tone>` from `event.status`),
follow-on-scroll, follow-on-`pre` body with markdown harden hook,
"等待后端事件" placeholder when events is empty, and
`markTraceScrollIntent`-equivalent scroll handler.
- Pre-React `app-conv.ts:1337-1500` semantics are now rendered through
the same `traceUiKey` storage and a follow/pause toggle.
4. **Beijing time formatting** (the "formatBeijingTime" regression)
- `utils.ts` adds `formatBeijingTime(value, {withSeconds, includeYear})`
using a shared `Intl.DateTimeFormat` Asia/Shanghai formatter; the
pre-existing `formatTimestamp` now delegates to it.
- `MessageCard` and `MessageTracePanel` now render `formatBeijingTime`
in `withSeconds: true` mode so users see `2026-06-03 19:56:20` not
raw ISO `2026-06-03T11:56:20.731Z`.
5. **`api.gateDiagnostics` and `api.cancelAgentMessage` clients** are now
declared alongside the existing `sendAgentMessage` / `getAgentChatResult`
so round 6 can wire `GateView` and round 3 can wire 取消当前请求
without another client surface churn.
## Verification
- `cd web/hwlab-cloud-web && bun run check` passes (Vite build + 2/2 dist
freshness test pass + 12 fresh dist files)
- `bun run scripts/tsc-check.ts` passes (strict React TSX, 0 explicit any)
- `bun test` 2 pass / 0 fail
- `bun run build` 9 dist files verified fresh; `app.js` grew 198671 →
213154 bytes; `index.css` grew 13483 → 15324 bytes
- new `app.js` contains: `activityRef`, `inactivityDetail`,
`MessageTracePanel`, `codeAgentSummaryRows`,
`classifyCodeAgentStatusSummary`, `formatBeijingTime`
- new `index.css` contains: `.message-trace-toolbar`,
`.message-trace-events`, `.message-trace-list`, `.message-trace-row`,
`.message-trace-body`, `.message-trace-empty`, `.message-trace-last`,
`.message-trace-time`, `.message-trace-tone`, `.message-trace-label`,
`.code-agent-summary-rows`, `.code-agent-summary-row`,
`.code-agent-summary-key`, `.code-agent-summary-value`,
`.code-agent-summary-raw`
- `web/hwlab-cloud-web/src/state/code-agent-status.ts` 398 lines, the
other new/edited files are also within the 400-line frontend guard.
Refs: pikasTech/HWLAB#775 (round 1 of 7)
Co-authored-by: HWLAB <ci@hwlab.local>
Lyon
867f8dd751
