diff --git a/internal/cloud/code-agent-trace-store.ts b/internal/cloud/code-agent-trace-store.ts
index 1819454c..35e39d99 100644
--- a/internal/cloud/code-agent-trace-store.ts
+++ b/internal/cloud/code-agent-trace-store.ts
@@ -332,7 +332,7 @@ function normalizeTraceEvent(event, { traceId, seq, now, fallbackRunnerKind } =
     stdoutSummary: safeText(event.stdoutSummary, 600),
     stderrSummary: safeText(event.stderrSummary, 600),
     chunk: safeText(event.chunk, 400),
-    message: safeText(event.message, 500),
+    message: safeText(event.message, 1200),
     errorCode: safeText(event.errorCode, 120),
     waitingFor: safeText(event.waitingFor, 220),
     timeoutMs: typeof event.timeoutMs === "number" ? Math.trunc(event.timeoutMs) : undefined,
diff --git a/internal/cloud/codex-stdio-session-turn-state.ts b/internal/cloud/codex-stdio-session-turn-state.ts
index 1d6a9ea9..0329b0b3 100644
--- a/internal/cloud/codex-stdio-session-turn-state.ts
+++ b/internal/cloud/codex-stdio-session-turn-state.ts
@@ -161,11 +161,14 @@ export function createAppServerTurnState({ traceRecorder, session } = {}) {
       return;
     }
     if (method === "item/completed" && item?.type === "agentMessage") {
-      if (typeof item.text === "string") finalResponse = item.text;
+      const completedText = typeof item.text === "string" ? item.text : "";
+      if (completedText) finalResponse = completedText;
       appendTrace({
         type: "assistant_message",
         status: "completed",
         label: "assistant:item_completed",
+        itemId: optionalId(item.id),
+        message: redactText(completedText),
         sessionId: session?.sessionId,
         sessionStatus: session?.status,
         turn: session?.turn,
diff --git a/web/hwlab-cloud-web/app-trace.test.ts b/web/hwlab-cloud-web/app-trace.test.ts
index cc9b6398..9952486e 100644
--- a/web/hwlab-cloud-web/app-trace.test.ts
+++ b/web/hwlab-cloud-web/app-trace.test.ts
@@ -32,6 +32,41 @@ test("trace display rows render completion when no terminal assistant event exis
   assert.equal(rows.some((row) => /轮次完成/u.test(row.header)), true);
 });
 
+test("trace display rows render assistant item text when stream snapshot is absent", () => {
+  const events = [
+    event(1, "request:accepted", { promptSummary: "请列出 device-pod" }),
+    event(2, "assistant:item_completed", {
+      type: "assistant_message",
+      status: "completed",
+      itemId: "msg_item_0",
+      message: "当前有以下 **5 个 device-pod** 可用。"
+    }),
+    commandEvent(3, "item/commandExecution:completed", {
+      itemId: "cmd-trace-2",
+      command: "grep -rn device-pod /workspace/hwlab",
+      status: "completed",
+      exitCode: 0,
+      stdoutSummary: "success=true"
+    }),
+    event(4, "assistant:completed", {
+      type: "assistant_message",
+      terminal: true,
+      status: "completed",
+      itemId: "assistant-final",
+      message: "可以继续指定要操作的 device-pod。"
+    })
+  ];
+
+  const rows = traceDisplayRows({ traceId: "trc_assistant_item_text", events }, events);
+  const text = rows.map((row) => `${row.header}\n${row.body ?? ""}`).join("\n---\n");
+
+  assert.match(text, /🤖 助手消息（第一条）/u);
+  assert.match(text, /当前有以下 \*\*5 个 device-pod\*\* 可用/u);
+  assert.match(text, /工具调用/u);
+  assert.match(text, /助手最后一条消息/u);
+  assert.match(text, /可以继续指定要操作的 device-pod/u);
+});
+
 function traceEvents() {
   return [
     event(1, "request:accepted", { promptSummary: "请检查 trace" }),
diff --git a/web/hwlab-cloud-web/index.html b/web/hwlab-cloud-web/index.html
index 24840b68..0c56e57f 100644
--- a/web/hwlab-cloud-web/index.html
+++ b/web/hwlab-cloud-web/index.html
@@ -314,10 +314,6 @@
               <pre id="device-event-text">等待 /v1/device-pods 事件流。</pre>
             </div>
           </section>
-          <div class="readonly-rpc sidebar-note">
-            <h3>复核入口</h3>
-            <p class="panel-copy">技术复核保留在二级页面；默认右栏只显示 Device Pod 摘要和纯文本事件流。</p>
-          </div>
         </section>
         <dialog class="device-detail-dialog" id="device-detail-dialog" aria-labelledby="device-detail-title">
           <form method="dialog" class="device-detail-shell">
diff --git a/web/hwlab-cloud-web/scripts/check.ts b/web/hwlab-cloud-web/scripts/check.ts
index 2134afce..37ecc177 100644
--- a/web/hwlab-cloud-web/scripts/check.ts
+++ b/web/hwlab-cloud-web/scripts/check.ts
@@ -82,9 +82,12 @@ for (const term of [
 }
 
 assert.doesNotMatch(rightSidebar, /<details\b/iu, "right sidebar must not use internal expand/collapse details");
+assert.doesNotMatch(rightSidebar, /readonly-rpc|复核入口/iu, "right sidebar must not render the readonly RPC review note");
 assert.doesNotMatch(rightSidebar, /data-hardware-tab|m3-control|hardware-list|wiring-body|records-list/iu, "right sidebar must not keep legacy hardware panels");
 assert.match(rightSidebar, /class="summary-tile"[^>]*role="button"[^>]*tabindex="0"/u, "Pod summary is a click/keyboard summary tile");
 assert.match(rightSidebar, /<dialog\b[\s\S]*id="device-detail-dialog"/u, "summary details must open in a dialog");
+assert.match(cssRule(styles, ".right-sidebar"), /grid-auto-rows:\s*max-content;/u, "right sidebar rows must keep Device Pod workspace from being squeezed by the status area");
+assert.doesNotMatch(cssRule(styles, ".device-pod-workspace"), /minmax\(180px,\s*1fr\)/u, "Device Pod workspace must not use a 1fr event row inside the sidebar scroll column");
 
 for (const selector of [
   ".device-pod-status",
@@ -265,6 +268,14 @@ function sectionById(source, tagName, id) {
   return source.slice(start);
 }
 
+function cssRule(source, selector) {
+  const match = new RegExp(`${escapeRegExp(selector)}\\s*\\{`, "u").exec(source);
+  if (!match) return "";
+  const bodyStart = match.index + match[0].length;
+  const bodyEnd = source.indexOf("}", bodyStart);
+  return bodyEnd >= 0 ? source.slice(match.index, bodyEnd + 1) : source.slice(match.index);
+}
+
 function functionBody(source, name) {
   const match = new RegExp(`function\\s+${escapeRegExp(name)}\\s*\\([^)]*\\)\\s*\\{`, "u").exec(source);
   if (!match) return "";
diff --git a/web/hwlab-cloud-web/styles.css b/web/hwlab-cloud-web/styles.css
index 3486e236..4b882eeb 100644
--- a/web/hwlab-cloud-web/styles.css
+++ b/web/hwlab-cloud-web/styles.css
@@ -1797,7 +1797,7 @@ h3 {
 .right-sidebar {
   position: relative;
   display: grid;
-  grid-template-rows: auto auto auto minmax(0, 1fr);
+  grid-auto-rows: max-content;
   gap: 8px;
   padding: 10px 10px 10px 16px;
   background: rgba(18, 20, 18, 0.98);
@@ -2465,7 +2465,7 @@ tbody tr:last-child td {
 }
 
 .device-pod-workspace {
-  grid-template-rows: auto minmax(180px, 1fr) auto;
+  grid-template-rows: auto auto;
 }
 
 .device-pod-selector-row {
@@ -2567,9 +2567,9 @@ tbody tr:last-child td {
 
 .device-event-panel {
   min-width: 0;
-  min-height: 180px;
+  min-height: 240px;
   display: grid;
-  grid-template-rows: auto minmax(0, 1fr);
+  grid-template-rows: auto minmax(180px, 1fr);
   border: 1px solid var(--line);
   background: #101310;
 }