fix: resolve runtime, review, channel and chat state failures

Keep remote startup cancellable without blocking other sessions and surface local OpenCode submission failures promptly. Preserve supervisor project isolation, pause behavior and valid story destinations.

Restore generated-image channel delivery, Telegram reconnection on unchanged Save and DingTalk business-error retries. Preserve virtualized message disclosures using sparse state and release stale supervisor UI requests.

Add production-path regressions, Electron checks, isolated SQLite validation and audit evidence. Fix the SDK cleanup test fixture lifetime under garbage collection without weakening its assertions.

Validation: 6136 tests passed, 87 skipped; typecheck, lint and diff checks passed. Seven real text-model calls, current-source Linux x64 Host scenarios and large-history Electron comparisons completed.

Release note: Fix stuck runtime requests, inconsistent review results and channel delivery failures, and retain expanded details while browsing long conversations. Remote runtime fixes require an Agent build containing these changes.

docs/features/application-tool-navigation/ui-design.md

@@ -270,6 +270,14 @@ CPU 4% · 内存 620 MB · 桌面进程 7
 导出也适用于消息通道会话。持久化与刷新规则见
 [会话置顶存储](../assistant-workbar/execution-history-storage.md#会话置顶)。
 
+### 聊天阅读状态
+
+在同一历史面板内，滚动到别处再返回时，消息的推理、工具结果、工具输入、引用和子代理详情保留用户的展开或收起选择。子代理收起后重新展开，其内部工具详情也保留选择；不同消息及父子工具分别记忆。状态保留在历史面板中，不依赖把所有已展开的消息留在 DOM 中；面板被缓存淘汰或应用重启后不恢复这些临时阅读选择。
+
+未操作的折叠项不留下默认状态记录；用户恢复默认选择、消息或对应折叠项被删除后，释放相应记录。正常滚动卸载不视为删除。
+
+推理仍在流式输出时默认展开、完成时自动收起，流式期间手动收起不因滚动重挂载而重新展开。有焦点、文本选区端点、待回答问题和待审批项的消息继续按既有规则保留挂载；平滑跳到底部及滚动锚定行为不变。
+
 ## 9. 未来插件入口
 
 FR-15、US-F1／US-F2 的市场 URL、YAML 导入导出及 ShareServer 分发在后续设计中定义。