fix: complete runtime and workspace workflows

Restore Ask workspace reads and output paging without granting write access,
and let programming Subagents reuse their parent's browser page. Allocate
browser resources only when used, keep Agent pages aligned with workbar tabs,
recover released bindings, and remove unused automatic screenshot work.

Preserve inherited Runtime selections during remote usage persistence and
manual compression. Keep viable channel model fallbacks, display the actual
scheduled-task mode and Harness model source, and avoid rediscovery delays
when calling healthy MCP tools. Fix directory/history refresh, case-only
renames, rename-aware commit diffs, and FastGPT probe success reporting.

Add regression coverage and align feature documentation. The Agent-side
connection timeout fix requires deploying an updated Agent; existing Ask
read-only and Execute authorization boundaries remain unchanged.

Final validation: 3839 tests passed, 66 skipped; typecheck, lint, development
build, and diff checks passed. Isolated Electron UI/MCP workflows passed with
a loopback model fixture. Current-source Linux x64 Host checks passed with
three successful real model requests. Chromium loadURL rejection was not
reproduced in the UI; released-binding recovery has automated coverage.

Release note: 修复 Ask 读取项目文件、浏览器页面显示与恢复、文件管理及模型配置跟随中的不一致，并减少无用截图和 MCP 等待。定时任务显示实际工作模式，远程会话可正常保存继承 Runtime 的用量；远端连接超时修复需更新 Agent 后生效。

docs/features/model-connections/progress.md

@@ -1,5 +1,23 @@
 # 模型连接请求定制进度
 
+## 2026-09-10：配置准确性修复
+
+- 通道直连回退修复已按[技术设计第 8 节](./technical-design.md#8-通道直连模型选择修复)
+  实现；测试把修复结果交给现有 Main resolver，不仅断言返回对象。
+- Harness 设置使用专用来源标签、关联帮助及 Main 直接从生产 resolver 派生的只读
+  `deepseekHarnessPlatformModel` 投影；准确区分完整管理员预置、兼容回退和无连接，
+  不再从通用环境凭据状态推断。投影不含地址、密钥或请求定制，也不写入设置文件。
+- 无兼容连接时管理员来源仍可选择；未保存候选与实际已保存来源分别展示。UI 验证涵盖
+  中英文、兼容默认、首个兼容回退、管理员覆盖、部分环境回退、无连接、草稿预览和保存动作。
+- 聚焦命令 `npx vitest run src/main/agent/runtime-selection-contracts.test.ts src/renderer/src/SettingsPanel.test.tsx`
+  对应的两个文件在本次五文件联合运行中全部通过，共 96 项。真实模型调用 0 次；
+  本次未运行全量测试、typecheck、lint 或真实 Harness 请求。
+  通道修复集成测试随后归入 Main 测试目录，避免 Shared/Web 类型项目导入主进程实现。
+- 后续聚焦验证 `npx vitest run src/main/runtime-settings-store.test.ts src/renderer/src/SettingsPanel.test.tsx`
+  全部通过：2 文件、181 项。Store 覆盖完整、部分与旧环境变量、默认/首个兼容回退、
+  无连接、精确字段白名单、非持久化以及不改变所选来源。真实模型/Host 调用均为 0；
+  未运行全量测试、构建、typecheck 或 lint。
+
 ## 2026-09-03
 
 ### 已完成