From 610fc77b0f9e70a03961d7614c6e1cfb30586fa3 Mon Sep 17 00:00:00 2001
From: KiriAky 107 <KiriAky107@qq.com>
Date: Sat, 29 Aug 2026 12:10:33 +0800
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恢复 Vue TypeScript 生产构建，补齐可运行页面壳子，并修复文件树与 SSE 状态问题。

按 FastAPI Wire Contract 统一 Service DTO 映射，同时补充前端开发说明和问题修复复盘。
---
 docs/前端合并审阅问题与修复复盘.md            | 257 ++++++++++
 docs/前端壳子与接口层开发说明.md              | 177 +++++++
 frontend/src/components/common/AppShell.vue   |   2 +-
 .../components/common/SecondarySidebar.vue    |  19 +-
 frontend/src/components/common/StatusBar.vue  |   2 +-
 frontend/src/contracts/index.ts               | 185 ++++++-
 .../src/features/common/PlaceholderView.vue   |  34 ++
 frontend/src/features/editor/EditorHeader.vue |  26 +
 frontend/src/features/editor/EditorPane.vue   |  30 ++
 .../src/features/workspace/FileTreeNode.vue   |  31 ++
 .../src/features/workspace/FileTreePanel.vue  | 451 ++++--------------
 frontend/src/router/index.ts                  |  26 +-
 frontend/src/services/agentService.ts         |  51 +-
 frontend/src/services/apiClient.ts            |  16 +-
 frontend/src/services/chatService.ts          |  28 +-
 frontend/src/services/index.ts                |   2 +-
 frontend/src/services/indexService.ts         |  34 +-
 frontend/src/services/noteService.ts          |  23 +-
 frontend/src/services/pluginService.ts        |  58 ++-
 frontend/src/services/providerService.ts      |  75 ++-
 frontend/src/services/searchService.ts        |  36 +-
 frontend/src/services/skillService.ts         |  40 +-
 frontend/src/services/sseClient.ts            |  75 +--
 frontend/src/services/systemService.ts        |   2 +-
 frontend/src/services/taskService.ts          |  54 ++-
 frontend/src/services/workspaceService.ts     |   4 +-
 frontend/src/stores/agent.ts                  |   7 +-
 frontend/src/stores/chat.ts                   |  52 +-
 frontend/src/stores/provider.ts               |   8 +-
 frontend/src/stores/search.ts                 |   2 +-
 frontend/src/stores/workspace.ts              |   4 +
 frontend/tsconfig.app.json                    |   4 +
 32 files changed, 1204 insertions(+), 611 deletions(-)
 create mode 100644 docs/前端合并审阅问题与修复复盘.md
 create mode 100644 docs/前端壳子与接口层开发说明.md
 create mode 100644 frontend/src/features/common/PlaceholderView.vue
 create mode 100644 frontend/src/features/editor/EditorHeader.vue
 create mode 100644 frontend/src/features/editor/EditorPane.vue
 create mode 100644 frontend/src/features/workspace/FileTreeNode.vue

diff --git a/docs/前端合并审阅问题与修复复盘.md b/docs/前端合并审阅问题与修复复盘.md
new file mode 100644
index 0000000..a54e075
--- /dev/null
+++ b/docs/前端合并审阅问题与修复复盘.md
@@ -0,0 +1,257 @@
+# 前端合并审阅问题与修复复盘
+
+> 审阅与修复日期：2026-08-29
+> 涉及提交：`f9efc4f`，合并提交 `c6c28e4`。
+> 文档用途：记录前端分支合并后暴露的问题域、形成原因、实际后果、修复思路和落地方案，供后续技术文档、比赛材料与博客写作使用。
+
+## 1. 结论
+
+原前端提交一次增加了 42 个文件和约 8000 行内容，但没有在提交前执行成功的生产构建。合并后同时存在工程配置、组件完整性、接口契约、流式协议和文件树状态五个问题域。
+
+本轮处理结果：
+
+| 编号 | 问题域 | 原级别 | 处理结果 |
+| --- | --- | --- | --- |
+| F-01 | TypeScript 与生产构建不可用 | P0 | 已修复，`pnpm build` 通过 |
+| F-02 | 路由引用未提交页面 | P0 | 已改为统一占位页，并补充基础编辑器组件 |
+| F-03 | 前后端 Contract 系统性漂移 | P1 | 已增加 Wire DTO 和显式 Service 映射 |
+| F-04 | SSE 跨网络分片丢失事件 | P1 | 已重写增量解析状态机 |
+| F-05 | 文件树右键操作目标错误 | P1 | 已改为保存实际右键节点 |
+| F-06 | 根目录新增文件不可见且路径异常 | P2 | 已处理顶层插入与路径拼接 |
+| F-07 | Chat 仍使用模拟流式输出 | P2 | 已接入真实 `/api/chat` SSE |
+
+## 2. F-01：TypeScript 与生产构建不可用
+
+### 原因
+
+Vite 配置了 `@` 指向 `src`，但 `tsconfig.app.json` 没有配置 `baseUrl` 和 `paths`。Vite 和 TypeScript 使用不同的模块解析配置，只配置其中一侧后，开发服务器可能暂时工作，`vue-tsc` 仍无法解析全部别名。
+
+提交中还存在多个独立错误：
+
+- `ComputedRef` 与字符串直接比较，缺少 `.value`；
+- `FileTreePanel.vue` 在两个 Script 中重复导入 `FileNode`；
+- 浏览器 ESM 代码调用 CommonJS `require()`；
+- Chat Store 使用不存在的 `conversation_id` 变量；
+- Service 聚合文件导出不存在的 `ApiError`；
+- StatusBar 使用没有表达式的 `@click`。
+
+### 后果
+
+- `pnpm build` 无法生成生产包；
+- CI 无法验证前端；
+- 别名错误产生的大量隐式 `any` 干扰真正错误定位；
+- `main` 不再满足“可构建”要求。
+
+### 解决思路
+
+先恢复唯一可信的构建基线，再处理运行时问题。路径别名同时配置给 Vite 和 TypeScript，其余错误按 Vue 3 Composition API 和浏览器 ESM 规则逐项修复。
+
+### 解决方案
+
+- 在 `tsconfig.app.json` 增加 `baseUrl` 和 `@/*` 映射；
+- 在 Script 中通过 `.value` 读取 ComputedRef；
+- 拆分递归文件树组件，删除第二个 Script 和 `require()`；
+- 修正 Chat 变量名和类型导出；
+- 删除无意义的空事件绑定；
+- 将 `pnpm build` 作为提交前强制检查。
+
+## 3. F-02：路由和公共组件引用未提交文件
+
+### 原因
+
+路由表和 Secondary Sidebar 按最终页面结构一次性写完，但对应页面没有随提交进入仓库。Workspace 也引用了不存在的 `EditorHeader.vue` 和 `EditorPane.vue`。缺失项覆盖 Search、Chat、Agent、Task、Skill、Plugin、Theme、Settings 和多个 Sidebar Panel，共 21 个 Vue 文件。
+
+### 后果
+
+- 修复路径别名后，TypeScript 和 Vite 仍因模块不存在而失败；
+- 开发者无法判断页面是遗漏提交，还是尚未实现；
+- 后续成员可能分别创建同名但职责不同的组件。
+
+### 解决思路
+
+路由只能引用当前提交真实存在的组件。为保留产品信息架构，使用一个明确标注“功能开发中”的公共占位页，避免建立一批内容为空的伪页面。
+
+### 解决方案
+
+- 新增统一 `PlaceholderView.vue`；
+- 未实现功能路由暂时指向占位页；
+- Secondary Sidebar 对未实现 Panel 显示说明文本；
+- 增加可运行的基础 Editor Header 和 Textarea Pane；
+- 文档明确占位路由不代表业务页面完成。
+
+## 4. F-03：前后端 Contract 系统性漂移
+
+### 原因
+
+前端先按页面需要定义了扁平 View Model，并直接把它们作为 HTTP 请求和响应类型。后端已经形成明确的 Pydantic Contract，包括分页包装、嵌套 Manifest、枚举和值对象，两边没有通过 OpenAPI 或人工核对完成同步。
+
+典型差异：
+
+| 模块 | 原前端假设 | FastAPI 实际 Contract |
+| --- | --- | --- |
+| Notes | `folder_path/content` | `folder/markdown` |
+| Search | 单值筛选、`results/total` | 数组筛选、`items/page` |
+| Agent | `task`、可选 Provider | `input`、Provider 与 Model 必填 |
+| Permission | `allow + scope` | `allow_once/allow_session/deny` |
+| Skill / Plugin | 扁平对象 | `manifest + runtime status` |
+| Provider | Capability 对象 | Capability 数组 |
+| Task | `due_date`、priority、source | `due_at`，后两项尚未进入后端 |
+| Index | `full/fts/vector` | `all/notes/vectors` |
+
+### 后果
+
+- Agent 创建、Permission 响应等请求稳定返回 422；
+- 列表接口拿到对象后被当成数组使用；
+- Skill、Plugin 和 Provider 页面读取不到标识和能力；
+- TypeScript 声称调用安全，但运行时结构完全不同；
+- 捕获异常后回退 Mock 会掩盖真实联调失败。
+
+### 解决思路
+
+区分 Wire DTO 和 View Model。HTTP 边界严格使用与 FastAPI 一致的 `Api*` 类型，Service 显式完成转换，页面展示字段不反向污染后端请求。
+
+### 解决方案
+
+- 增加 `ApiNote`、`ApiAgentRun`、`ApiSkill`、`ApiPlugin`、`ApiProviderConfig`、`ApiTask`、`ApiIndexStatus` 等 Wire DTO；
+- Notes Service 改用 `folder`、`markdown` 和真实分页结构；
+- Search Service 将单值 UI Filter 转换为后端数组，并映射 `items/page`；
+- Agent Service 使用 `input`、`tool_timeout_seconds` 和 `run_timeout_seconds`；
+- Permission Store 将 `allow + once/session` 转换为后端枚举；
+- Skill 和 Plugin Service 展开嵌套 Manifest；
+- 增加 Plugin Permission PUT；
+- Provider Capability 数组转换为界面布尔 Map；
+- Task Service 只发送后端支持字段，并转换 `due_date/due_at`；
+- Index Service 显式转换 Scope；
+- 默认离线 Provider ID 统一为后端的 `mock`。
+
+## 5. F-04：SSE 跨网络分片丢失事件
+
+### 原因
+
+旧解析器把 `eventName` 和 `dataStr` 声明在每次 `reader.read()` 的循环内部。网络 Chunk 与 SSE Event 没有一一对应关系，一个事件的 `event:`、`data:` 和结尾空行可以分别落在多个 Chunk 中。
+
+```text
+Chunk 1: event: TextDelta\n
+Chunk 2: data: {"event":"TextDelta", ...}\n\n
+```
+
+读取 Chunk 2 时事件名已被重置成 `message`。如果 data 与空行分开，data 内容也会丢失。
+
+### 后果
+
+- Chat 增量文本偶发不显示；
+- Agent 终态事件无法触发完成回调；
+- 问题受网络分片影响，开发机难以稳定复现；
+- 长回答和远程 Provider 更容易出现错误。
+
+### 解决思路
+
+SSE 解析状态必须跨 Chunk 保存，以完整行和空行结束事件为边界，不能以单次网络读取为边界。
+
+### 解决方案
+
+- 将 Event Name 和 Data Lines 移到读取循环外；
+- Buffer 只移除已经形成完整行的内容；
+- 支持 LF、CRLF、多行 data 和注释行；
+- 流结束时 flush TextDecoder 和剩余 Event；
+- 终态回调增加去重；
+- SSE URL 复用普通 HTTP 的 Base URL 解析。
+
+## 6. F-05：文件树右键操作目标错误
+
+### 原因
+
+右键菜单打开时保存了 `contextMenuPath`，但执行删除和重命名时读取的是 `workspaceStore.activeFile`。右键节点与当前编辑节点是两个独立状态。
+
+### 后果
+
+用户右键未激活文件并点击删除时，可能关闭或修改正在编辑的另一个文件。这属于潜在数据破坏问题。
+
+### 解决思路
+
+菜单操作必须绑定菜单打开时的目标对象，不能在点击命令时从无关的 Active State 推断。
+
+### 解决方案
+
+- 使用 `contextTarget: Ref<FileNode | null>` 保存右键节点；
+- Rename 和 Delete 只消费 `contextTarget`；
+- 菜单关闭后清空目标；
+- 将递归 Node 独立为 `FileTreeNode.vue`，通过类型化 Emit 向上传递节点。
+
+## 7. F-06：根目录新增文件不可见且路径异常
+
+### 原因
+
+Store 把 `/` 当作普通父节点查找，但文件树没有代表根目录的虚拟节点。Service 直接使用 `folderPath + '/' + name` 拼接路径，根目录会得到 `//name.md`。
+
+### 后果
+
+- Service 返回成功，但新建项目没有加入界面文件树；
+- 打开的文件路径带双斜杠；
+- 接入真实文件系统后可能产生平台间路径差异。
+
+### 解决思路与方案
+
+顶层数组本身就是根节点的 children。当 `parentPath` 为 `/` 或空字符串时直接写入 `fileTree.value`，Mock Service 拼接根目录路径时只保留一个 `/`。
+
+## 8. F-07：Chat 使用模拟流式输出
+
+### 原因
+
+Chat Store 已经存在 SSE Service，但发送消息后仍通过 `setInterval` 拼接固定文本，没有调用后端。
+
+### 后果
+
+- 后端 Provider、RAG、错误事件和取消无法通过前端验证；
+- 页面看似工作，实际没有形成前后端链路；
+- SSE 解析缺陷长期被 Mock 掩盖。
+
+### 解决思路与方案
+
+保留初始展示数据，但用户主动发送消息时调用真实 `/api/chat`。请求使用当前 Provider、Model、RAG 开关和消息历史；TextDelta 追加到 Assistant Message；Error、网络失败、Done 和主动取消同步更新 Streaming State。默认使用离线 `mock / mock-1`，无需外部 API Key。
+
+## 9. 验证
+
+```powershell
+cd frontend
+pnpm install --frozen-lockfile
+pnpm build
+
+cd ../backend
+uv run pytest
+
+cd ..
+git diff --check
+```
+
+结果：
+
+```text
+frontend production build passed
+73 frontend modules transformed
+62 backend tests passed
+preview returned HTTP 200
+git diff --check passed
+```
+
+## 10. 预防措施
+
+- PR 创建前必须执行与 CI 相同的 `pnpm build`；
+- 路由只引用当前提交存在的文件；
+- FastAPI `/openapi.json` 是 Wire Contract 的唯一事实来源；
+- View Model 与 API DTO 分层，Service 必须显式转换；
+- 不用 Mock Fallback 掩盖 4xx、5xx 和契约错误；
+- SSE 测试按任意 Chunk 边界构造数据，不能假定一次 read 等于一次 Event；
+- 删除、移动和覆盖等高影响操作必须携带明确目标 ID 或对象；
+- 合并后如果发现 P0，先恢复主分支构建，再继续业务页面开发。
+
+## 11. 当前边界与后续事项
+
+本轮修复解决了前端壳子的工程正确性和接口边界，不代表全部前端页面已经完成。后续仍需要：
+
+- 实现 Search、Chat、Agent、Task、Skill、Plugin、Theme 和 Settings 页面；
+- 为 Service DTO 映射增加自动化契约测试；
+- 为 SSE Parser 增加跨 Chunk 单元测试；
+- 用 Tauri Command 替换 Mock Workspace Service；
+- 完成 Citation 定位、Agent Permission Dialog 和 Trace 可视化；
+- 在 CI 中加入前端构建和后端测试两个必需检查。
diff --git a/docs/前端壳子与接口层开发说明.md b/docs/前端壳子与接口层开发说明.md
new file mode 100644
index 0000000..72cded5
--- /dev/null
+++ b/docs/前端壳子与接口层开发说明.md
@@ -0,0 +1,177 @@
+# 前端壳子与接口层开发说明
+
+> 更新日期：2026-08-29
+> 适用范围：Vue 3 + TypeScript 前端壳子、Workspace、公共 Service、FastAPI 接口适配和 SSE。
+> 文档用途：帮助团队理解当前前端可用能力、模块边界、启动方式和后续页面开发入口。
+
+## 1. 当前实现状态
+
+本轮修复后，前端已经形成一条可安装、可类型检查、可生产构建的基础链路：
+
+```text
+Vue Router
+→ App Shell
+→ Pinia Store
+→ Service / FastAPI DTO Adapter
+→ HTTP 或 SSE
+→ FastAPI
+```
+
+当前可以使用的界面包括：
+
+- Vault 入口页；
+- 应用标题栏、主侧边栏、辅助侧边栏和状态栏；
+- Workspace 文件树；
+- 基础 Markdown 文本编辑区；
+- 文件打开、新建、删除和重命名交互壳子；
+- 未完成模块的统一占位页。
+
+Search、Chat、Agent、Task、Skill、Plugin、Theme 和 Settings 已保留稳定路由，但除公共 Store 与 Service 外，具体业务页面仍待后续实现。占位页用于保证主分支可构建、导航目标可识别，不代表对应功能页面已经验收。
+
+## 2. 目录与职责
+
+```text
+frontend/src/
+├── components/common/          App Shell 与公共导航组件
+├── contracts/index.ts          UI View Model 与 FastAPI Wire DTO
+├── features/common/            未实现功能的统一占位页
+├── features/editor/            基础编辑器头部与文本编辑区
+├── features/vault/             Vault 入口
+├── features/workspace/         Workspace 与递归文件树
+├── router/index.ts             页面路由和 Vault Guard
+├── services/                   HTTP、SSE、DTO 映射和模块 API
+├── stores/                     Pinia 状态
+└── styles/tokens.css           Design Token
+```
+
+职责约定：
+
+- Component 不直接拼接后端 URL；
+- Store 负责页面状态和业务操作编排；
+- Service 负责 HTTP/SSE 调用以及 Wire DTO 到 View Model 的转换；
+- `contracts/index.ts` 同时保留界面模型和以 `Api` 开头的 FastAPI DTO，两者不能混用；
+- OpenAPI `/openapi.json` 是后端 Wire Contract 的最终依据。
+
+## 3. 路由与页面壳子
+
+已注册路由：
+
+```text
+/
+/workspace
+/search
+/chat
+/agent/runs/:runId?
+/tasks
+/extensions/skills
+/extensions/plugins
+/themes
+/settings
+```
+
+除 Vault 入口外，其余路由需要先打开 Vault。尚未完成的页面统一加载 `PlaceholderView.vue`，后续开发时应逐个替换为真实页面组件，不要在路由中提前引用尚未提交的文件。
+
+## 4. Workspace 与编辑器
+
+Workspace 当前由以下组件构成：
+
+```text
+WorkspaceView
+├── EditorHeader
+└── EditorPane
+
+SecondarySidebar
+└── FileTreePanel
+    └── FileTreeNode（递归）
+```
+
+文件树把右键目标保存在 `contextTarget`，重命名和删除始终作用于实际被右键的节点，不再依赖当前编辑文件。根目录使用 `/` 表示，新增根级文件时直接写入 Store 顶层数组。
+
+当前 `workspaceService` 仍是 Web 开发模式下的 Mock Adapter。保存、重命名和删除只保留调用边界，尚未接入 Tauri 文件系统命令。进入桌面端阶段后，应替换 Service 内部实现，不改变 Component 和 Store 的调用方式。
+
+## 5. HTTP 接口层
+
+公共请求由 `apiClient.ts` 处理：
+
+- 支持 GET、POST、PUT、PATCH 和 DELETE；
+- 使用 `VITE_API_BASE_URL`，并兼容旧的 `VITE_API_BASE`；
+- 自动附加 `X-Request-Id`；
+- 将后端统一错误体转换为 `ApiErrorClass`；
+- 204 响应返回 `undefined`。
+
+Service 已适配当前 FastAPI Contract：
+
+| 模块 | 主要适配内容 |
+| --- | --- |
+| Notes | `folder`、`markdown`、直接 Note 响应和 `{items, page}` |
+| Search | 数组筛选字段、`items/page` 响应和 Search View Model 映射 |
+| Chat | `provider_id`、`model`、`messages` 和 ModelEvent SSE |
+| Agent | `input`、秒级 Timeout 字段、Run DTO 和 Permission Decision |
+| Skill / Plugin | 嵌套 `manifest`、安装 `package_path` 和 Plugin Permission PUT |
+| Provider | Provider Type、Capability 数组、模型列表包装和 Test 响应 |
+| Task | `due_at`、分页响应和当前后端支持字段 |
+| Index | `all/notes/vectors` Scope、Job 与状态 DTO |
+| System | `/health` 和 `/api/status` 的真实响应字段 |
+
+界面模型中存在的展示字段不能直接发送给后端。例如 Task View Model 的 `priority` 和 `source` 当前只是界面层字段，Service 创建与更新请求不会把它们发送给不支持这些字段的 FastAPI Contract。
+
+## 6. SSE
+
+`SseClient` 同时服务于 Chat 和 Agent Event：
+
+- 使用与普通 HTTP 相同的 API Base URL；
+- 支持 POST Chat Stream 和 GET Agent Event Stream；
+- 使用 `TextDecoder` 处理 UTF-8 增量字节；
+- 在网络分片之间保留 `event` 和多行 `data` 状态；
+- 以空行作为单个 SSE Event 的结束标志；
+- 识别 `Done`、`RunCompleted`、`RunFailed` 和 `RunCancelled`；
+- 支持 AbortController 主动取消。
+
+Chat Store 已从定时器模拟输出切换为真实 `/api/chat` SSE。默认离线联调配置为：
+
+```text
+provider_id = mock
+model       = mock-1
+```
+
+## 7. 环境和启动
+
+```powershell
+cd frontend
+pnpm install --frozen-lockfile
+pnpm dev
+```
+
+联调前在另一个终端启动后端：
+
+```powershell
+cd backend
+uv run uvicorn app.main:app --reload --host 127.0.0.1 --port 8000
+```
+
+生产构建：
+
+```powershell
+cd frontend
+pnpm build
+```
+
+## 8. 当前验证基线
+
+```text
+pnpm build       passed
+uv run pytest    62 passed
+preview smoke    HTTP 200
+git diff --check passed
+```
+
+后端测试出现过一次 `.pytest_cache` 无法写入的 Windows 权限警告，不影响 62 项测试结果，也不涉及产品代码。
+
+## 9. 后续开发要求
+
+- 新页面文件与路由修改必须在同一提交中出现；
+- 新增或修改接口时同步更新 FastAPI DTO、Service 映射和接口文档；
+- 不允许用 `as any` 或错误返回类型掩盖 Contract 差异；
+- SSE 相关变更需要覆盖跨 Chunk、CRLF、多行 data、终态事件和取消；
+- Workspace 接入 Tauri 后，需要增加路径规范化、写入失败恢复和外部修改冲突测试；
+- Search、Agent、Skill、Plugin 等占位页应按功能逐个替换，不一次提交大量空页面。
diff --git a/frontend/src/components/common/AppShell.vue b/frontend/src/components/common/AppShell.vue
index d6ef9a7..289cfac 100644
--- a/frontend/src/components/common/AppShell.vue
+++ b/frontend/src/components/common/AppShell.vue
@@ -26,7 +26,7 @@ const router = useRouter()
 const routeName = computed(() => route.name as string)
 
 const secondaryComponent = computed(() => {
-  switch (routeName) {
+  switch (routeName.value) {
     case 'workspace': return 'file-tree'
     case 'search': return 'search-filters'
     case 'chat': return 'conversation-list'
diff --git a/frontend/src/components/common/SecondarySidebar.vue b/frontend/src/components/common/SecondarySidebar.vue
index 34c8a1b..99c5a68 100644
--- a/frontend/src/components/common/SecondarySidebar.vue
+++ b/frontend/src/components/common/SecondarySidebar.vue
@@ -1,11 +1,6 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import FileTreePanel from '@/features/workspace/FileTreePanel.vue'
-import ConversationListPanel from '@/features/chat/ConversationListPanel.vue'
-import RunListPanel from '@/features/agent/RunListPanel.vue'
-import SearchFiltersPanel from '@/features/search/SearchFiltersPanel.vue'
-import TaskFiltersPanel from '@/features/tasks/TaskFiltersPanel.vue'
-import ExtensionListPanel from '@/components/common/ExtensionListPanel.vue'
 import { useRoute } from 'vue-router'
 
 const props = defineProps<{
@@ -27,7 +22,7 @@ const sidebarTitle = computed(() => {
   return titles[props.component || ''] || ''
 })
 
-const showSkillToggle = computed(() => routeName === 'skills' || routeName === 'plugins')
+const showSkillToggle = computed(() => routeName.value === 'skills' || routeName.value === 'plugins')
 </script>
 
 <template>
@@ -41,11 +36,7 @@ const showSkillToggle = computed(() => routeName === 'skills' || routeName === '
     </div>
     <div class="sidebar-content">
       <FileTreePanel v-if="component === 'file-tree'" />
-      <ConversationListPanel v-else-if="component === 'conversation-list'" />
-      <RunListPanel v-else-if="component === 'run-list'" />
-      <SearchFiltersPanel v-else-if="component === 'search-filters'" />
-      <TaskFiltersPanel v-else-if="component === 'task-filters'" />
-      <ExtensionListPanel v-else-if="component === 'extension-list'" />
+      <p v-else class="sidebar-placeholder">该功能将在对应页面实现时补充。</p>
     </div>
   </aside>
 </template>
@@ -109,4 +100,10 @@ const showSkillToggle = computed(() => routeName === 'skills' || routeName === '
   overflow-y: auto;
   overflow-x: hidden;
 }
+
+.sidebar-placeholder {
+  padding: var(--space-lg);
+  color: var(--color-text-tertiary);
+  font-size: var(--font-size-sm);
+}
 </style>
diff --git a/frontend/src/components/common/StatusBar.vue b/frontend/src/components/common/StatusBar.vue
index a7e212d..825b833 100644
--- a/frontend/src/components/common/StatusBar.vue
+++ b/frontend/src/components/common/StatusBar.vue
@@ -78,7 +78,7 @@ const showEditorInfo = computed(() => route.name === 'workspace')
         <span class="status-dot" style="background: var(--color-success)" />
         索引就绪
       </span>
-      <span class="status-item" :style="{ color: aiCoreColor }" @click>
+      <span class="status-item" :style="{ color: aiCoreColor }">
         <span class="status-dot" :style="{ background: aiCoreColor }" />
         {{ aiCoreStatusText }}
       </span>
diff --git a/frontend/src/contracts/index.ts b/frontend/src/contracts/index.ts
index 01e03c9..2497f16 100644
--- a/frontend/src/contracts/index.ts
+++ b/frontend/src/contracts/index.ts
@@ -247,15 +247,15 @@ export interface Plugin {
   enabled: boolean
   permissions: string[]
   contributions: PluginContribution[]
-  backend_type?: 'mcp' | 'internal'
-  transport?: 'stdio' | 'websocket'
+  backend_type?: 'mcp' | 'internal_rpc' | 'none'
+  transport?: 'stdio' | 'http' | 'none'
   last_error?: string
   dependent_skills?: string[]
 }
 
 // ============ Provider ============
 
-export type ProviderType = 'openai' | 'anthropic' | 'ollama' | 'openai-compatible' | 'mock'
+export type ProviderType = ApiProviderType
 
 export interface ModelCapability {
   chat: boolean
@@ -346,10 +346,10 @@ export interface ErrorResponse {
 }
 
 export interface SystemStatus {
+  status: 'ok'
   name: string
   version: string
-  environment: 'development' | 'production' | 'test'
-  ai_core_available: boolean
+  environment: string
 }
 
 export type SaveStatus =
@@ -362,3 +362,178 @@ export type SaveStatus =
   | 'conflict'
 
 export type AiCoreStatus = 'starting' | 'running' | 'stopped' | 'error'
+
+// ============ FastAPI wire contracts ============
+// UI view models above may contain presentation-only fields. Services must use
+// these DTOs at the HTTP boundary and explicitly map them to view models.
+
+export interface PageMeta {
+  total: number
+  limit: number
+  offset: number
+}
+
+export interface OperationResponse {
+  status: 'accepted' | 'completed'
+  resource_id?: string | null
+  message?: string | null
+}
+
+export interface ApiNoteBlock {
+  block_id: string
+  note_id: string
+  heading_path: string[]
+  start_offset: number
+  end_offset: number
+  content: string
+  content_hash: string
+  token_count: number
+}
+
+export interface ApiNoteSummary {
+  note_id: string
+  title: string
+  file_path: string
+  tags: string[]
+  created_at: string
+  updated_at: string
+}
+
+export interface ApiNote extends ApiNoteSummary {
+  markdown: string
+  blocks: ApiNoteBlock[]
+}
+
+export interface ApiSearchResult {
+  note_id: string
+  block_id: string
+  title: string
+  file_path: string
+  heading_path: string[]
+  snippet?: string | null
+  score: number
+  citation: ApiCitation
+}
+
+export interface ApiCitation {
+  citation_id: string
+  note_id: string
+  block_id: string
+  file_path: string
+  heading_path: string[]
+  start_offset?: number | null
+  end_offset?: number | null
+  source_audio?: string | null
+  start_time?: number | null
+  end_time?: number | null
+  speaker?: string | null
+}
+
+export interface ApiAgentRun {
+  run_id: string
+  status: AgentRunStatus
+  input: string
+  provider_id: string
+  model: string
+  skill_id?: string | null
+  current_step: number
+  max_steps: number
+  token_budget?: number | null
+  cancelled: boolean
+  output?: string | null
+  error_code?: string | null
+  error_message?: string | null
+  token_usage: number
+  created_at: string
+  updated_at: string
+}
+
+export interface ApiSkill {
+  manifest: {
+    skill_id: string
+    name: string
+    version: string
+    description: string
+    permissions: string[]
+    tools: string[]
+    retrieval: { top_k: number; rerank: boolean; citation: boolean }
+    model: { required_capabilities: string[] }
+  }
+  status: SkillStatus
+  enabled: boolean
+  missing_dependencies: string[]
+}
+
+export interface ApiPlugin {
+  manifest: {
+    plugin_id: string
+    name: string
+    version: string
+    description: string
+    permissions: string[]
+    contributes: {
+      tools: string[]
+      commands: string[]
+      importers: string[]
+      exporters: string[]
+      panels: string[]
+      settings_sections: string[]
+    }
+    backend: { type: 'mcp' | 'internal_rpc' | 'none'; transport: 'stdio' | 'http' | 'none' }
+  }
+  status: PluginStatus
+  enabled: boolean
+  granted_permissions: string[]
+  error_message?: string | null
+}
+
+export type ApiProviderType =
+  | 'mock'
+  | 'openai_responses'
+  | 'openai_chat'
+  | 'openai_compatible'
+  | 'anthropic_messages'
+  | 'ollama'
+
+export interface ApiProviderConfig {
+  provider_id: string
+  provider_type: ApiProviderType
+  name: string
+  base_url?: string | null
+  default_model?: string | null
+  credential_id?: string | null
+  enabled: boolean
+  capabilities: string[]
+}
+
+export interface ApiModelInfo {
+  model: string
+  display_name: string
+  capabilities: string[]
+}
+
+export interface ApiTask {
+  task_id: string
+  title: string
+  description: string
+  status: TaskStatus
+  note_id?: string | null
+  due_at?: string | null
+  created_at: string
+  updated_at: string
+}
+
+export interface ApiIndexStatus {
+  status: 'idle' | 'queued' | 'running' | 'failed'
+  pending_jobs: number
+  active_job_id?: string | null
+  last_completed_at?: string | null
+  error_message?: string | null
+}
+
+export interface ApiIndexJob {
+  job_id: string
+  status: 'queued' | 'running' | 'completed' | 'failed'
+  scope: 'all' | 'notes' | 'vectors'
+  created_at: string
+}
diff --git a/frontend/src/features/common/PlaceholderView.vue b/frontend/src/features/common/PlaceholderView.vue
new file mode 100644
index 0000000..faf015f
--- /dev/null
+++ b/frontend/src/features/common/PlaceholderView.vue
@@ -0,0 +1,34 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useRoute } from 'vue-router'
+
+const route = useRoute()
+const title = computed(() => String(route.meta.title ?? '功能开发中'))
+</script>
+
+<template>
+  <section class="placeholder-view">
+    <div>
+      <h1>{{ title }}</h1>
+      <p>基础路由已经就绪，具体页面将在后续功能开发中实现。</p>
+    </div>
+  </section>
+</template>
+
+<style scoped>
+.placeholder-view {
+  display: grid;
+  height: 100%;
+  place-items: center;
+  color: var(--color-text-secondary);
+}
+
+.placeholder-view div {
+  text-align: center;
+}
+
+.placeholder-view h1 {
+  margin: 0 0 var(--space-sm);
+  color: var(--color-text-primary);
+}
+</style>
diff --git a/frontend/src/features/editor/EditorHeader.vue b/frontend/src/features/editor/EditorHeader.vue
new file mode 100644
index 0000000..42a2801
--- /dev/null
+++ b/frontend/src/features/editor/EditorHeader.vue
@@ -0,0 +1,26 @@
+<script setup lang="ts">
+import { useEditorStore } from '@/stores/editor'
+import { useWorkspaceStore } from '@/stores/workspace'
+
+const editorStore = useEditorStore()
+const workspaceStore = useWorkspaceStore()
+</script>
+
+<template>
+  <header class="editor-header">
+    <strong>{{ workspaceStore.activeFile?.name ?? '未命名笔记' }}</strong>
+    <span>{{ editorStore.saveStatus }}</span>
+  </header>
+</template>
+
+<style scoped>
+.editor-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  min-height: 40px;
+  padding: 0 var(--space-lg);
+  border-bottom: 1px solid var(--color-border-subtle);
+  color: var(--color-text-secondary);
+}
+</style>
diff --git a/frontend/src/features/editor/EditorPane.vue b/frontend/src/features/editor/EditorPane.vue
new file mode 100644
index 0000000..d4a60ba
--- /dev/null
+++ b/frontend/src/features/editor/EditorPane.vue
@@ -0,0 +1,30 @@
+<script setup lang="ts">
+import { useEditorStore } from '@/stores/editor'
+
+const editorStore = useEditorStore()
+</script>
+
+<template>
+  <textarea
+    class="editor-pane"
+    :value="editorStore.content"
+    spellcheck="false"
+    @input="editorStore.updateContent(($event.target as HTMLTextAreaElement).value); editorStore.scheduleAutoSave()"
+  />
+</template>
+
+<style scoped>
+.editor-pane {
+  box-sizing: border-box;
+  flex: 1;
+  width: 100%;
+  resize: none;
+  border: 0;
+  outline: 0;
+  padding: var(--space-xl);
+  background: var(--color-background-primary);
+  color: var(--color-text-primary);
+  font: inherit;
+  line-height: 1.7;
+}
+</style>
diff --git a/frontend/src/features/workspace/FileTreeNode.vue b/frontend/src/features/workspace/FileTreeNode.vue
new file mode 100644
index 0000000..4d5c2b9
--- /dev/null
+++ b/frontend/src/features/workspace/FileTreeNode.vue
@@ -0,0 +1,31 @@
+<script setup lang="ts">
+import type { FileNode } from '@/contracts'
+
+defineProps<{ node: FileNode; activePath: string | null }>()
+const emit = defineEmits<{
+  open: [node: FileNode]
+  contextMenu: [event: MouseEvent, node: FileNode]
+}>()
+</script>
+
+<template>
+  <div>
+    <div class="tree-node" :class="{ active: node.path === activePath }"
+      @click="emit('open', node)" @contextmenu="emit('contextMenu', $event, node)">
+      <span>{{ node.type === 'folder' ? (node.is_open ? '📂' : '📁') : '📄' }}</span>
+      <span class="name">{{ node.name }}</span>
+      <span v-if="node.is_dirty">●</span>
+    </div>
+    <div v-if="node.type === 'folder' && node.is_open" class="children">
+      <FileTreeNode v-for="child in node.children ?? []" :key="child.id" :node="child" :active-path="activePath"
+        @open="emit('open', $event)" @context-menu="(event, target) => emit('contextMenu', event, target)" />
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.tree-node { display: flex; align-items: center; gap: var(--space-xs); min-height: 28px; padding: 0 var(--space-sm); border-radius: var(--radius-sm); cursor: pointer; }
+.tree-node:hover, .tree-node.active { background: var(--color-background-secondary); }
+.name { min-width: 0; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.children { padding-left: var(--space-md); }
+</style>
diff --git a/frontend/src/features/workspace/FileTreePanel.vue b/frontend/src/features/workspace/FileTreePanel.vue
index cbe342b..1ed6605 100644
--- a/frontend/src/features/workspace/FileTreePanel.vue
+++ b/frontend/src/features/workspace/FileTreePanel.vue
@@ -1,406 +1,117 @@
 <script setup lang="ts">
 import { ref } from 'vue'
-import { useWorkspaceStore } from '@/stores/workspace'
-import { useEditorStore } from '@/stores/editor'
 import { useRouter } from 'vue-router'
 import type { FileNode } from '@/contracts'
 import * as workspaceService from '@/services/workspaceService'
+import { useEditorStore } from '@/stores/editor'
+import { useWorkspaceStore } from '@/stores/workspace'
+import FileTreeNode from './FileTreeNode.vue'
 
 const workspaceStore = useWorkspaceStore()
 const editorStore = useEditorStore()
 const router = useRouter()
+const newItemType = ref<'file' | 'folder' | null>(null)
+const newItemName = ref('')
+const parentPath = ref('/')
+const contextTarget = ref<FileNode | null>(null)
+const contextMenuPosition = ref({ x: 0, y: 0 })
 
-const showNewMenu = ref(false)
-const newFileName = ref('')
-const newFolderName = ref('')
-const newFileParentPath = ref('')
-const showNewFileInput = ref(false)
-const showNewFolderInput = ref(false)
-const contextMenuPath = ref<string | null>(null)
-const showContextMenu = ref(false)
-const contextMenuPos = ref({ x: 0, y: 0 })
-const renamingPath = ref<string | null>(null)
-const renameValue = ref('')
-
-function toggleFolder(node: FileNode) {
-  workspaceStore.toggleFolder(node.path)
+function beginCreate(type: 'file' | 'folder', parent = '/') {
+  newItemType.value = type
+  newItemName.value = ''
+  parentPath.value = parent
 }
 
-async function openFile(node: FileNode) {
-  if (node.type === 'folder') {
-    toggleFolder(node)
-    return
+async function createItem() {
+  const rawName = newItemName.value.trim()
+  if (!rawName || !newItemType.value) return
+  if (newItemType.value === 'file') {
+    const name = rawName.endsWith('.md') ? rawName : `${rawName}.md`
+    const file = await workspaceService.createFile(parentPath.value, name, `# ${rawName}\n\n`)
+    workspaceStore.addFileToTree(parentPath.value, file)
+    workspaceStore.openFile(file.path)
+    await editorStore.loadFile(file.path)
+    await router.push('/workspace')
+  } else {
+    const folder = await workspaceService.createFolder(parentPath.value, rawName)
+    workspaceStore.addFileToTree(parentPath.value, folder)
   }
+  newItemType.value = null
+  newItemName.value = ''
+}
+
+async function openNode(node: FileNode) {
+  if (node.type === 'folder') return workspaceStore.toggleFolder(node.path)
   workspaceStore.openFile(node.path)
   await editorStore.loadFile(node.path)
-  router.push('/workspace')
+  await router.push('/workspace')
 }
 
-function startNewFile(parentPath = '') {
-  newFileParentPath.value = parentPath
-  showNewFileInput.value = true
-  showNewMenu.value = false
-  newFileName.value = ''
+function openContextMenu(event: MouseEvent, node: FileNode) {
+  event.preventDefault()
+  event.stopPropagation()
+  contextTarget.value = node
+  contextMenuPosition.value = { x: event.clientX, y: event.clientY }
 }
 
-function startNewFolder(parentPath = '') {
-  newFileParentPath.value = parentPath
-  showNewFolderInput.value = true
-  showNewMenu.value = false
-  newFolderName.value = ''
-}
+function closeContextMenu() { contextTarget.value = null }
 
-async function createFile() {
-  if (!newFileName.value.trim()) return
-  const name = newFileName.value.endsWith('.md') ? newFileName.value : `${newFileName.value}.md`
-  const file = await workspaceService.createFile(newFileParentPath.value || '/', name, '# ' + newFileName.value + '\n\n')
-  workspaceStore.addFileToTree(newFileParentPath.value || '/', file)
-  workspaceStore.openFile(file.path)
-  await editorStore.loadFile(file.path)
-  showNewFileInput.value = false
-  newFileName.value = ''
-}
-
-async function createFolder() {
-  if (!newFolderName.value.trim()) return
-  const folder = await workspaceService.createFolder(newFileParentPath.value || '/', newFolderName.value)
-  workspaceStore.addFileToTree(newFileParentPath.value || '/', folder)
-  showNewFolderInput.value = false
-  newFolderName.value = ''
-}
-
-function onContextMenu(e: MouseEvent, node: FileNode) {
-  e.preventDefault()
-  contextMenuPath.value = node.path
-  contextMenuPos.value = { x: e.clientX, y: e.clientY }
-  showContextMenu.value = true
-}
-
-function closeContextMenu() {
-  showContextMenu.value = false
-  contextMenuPath.value = null
-}
-
-function startRename(node: FileNode) {
-  renamingPath.value = node.path
-  renameValue.value = node.name
-  showContextMenu.value = false
-}
-
-async function finishRename(node: FileNode) {
-  if (renameValue.value && renameValue.value !== node.name) {
-    await workspaceService.renameFile(node.path, renameValue.value)
-    node.name = renameValue.value
+async function renameTarget() {
+  const node = contextTarget.value
+  if (!node) return
+  const newName = window.prompt('新名称', node.name)?.trim()
+  if (newName && newName !== node.name) {
+    await workspaceService.renameFile(node.path, newName)
+    node.name = newName
   }
-  renamingPath.value = null
+  closeContextMenu()
 }
 
-async function deleteNode(node: FileNode) {
-  const confirmMsg = node.type === 'folder' ? `确定要删除文件夹 "${node.name}" 吗？` : `确定要删除笔记 "${node.name}" 吗？`
-  if (confirm(confirmMsg)) {
-    await workspaceService.deleteFile(node.path)
-    workspaceStore.removeFromTree(node.path)
-    if (node.type === 'file') {
-      workspaceStore.closeFile(node.path)
-    }
-  }
-  showContextMenu.value = false
-}
-
-function getFileIcon(name: string) {
-  if (name.endsWith('.md')) return '📄'
-  return '📄'
+async function deleteTarget() {
+  const node = contextTarget.value
+  if (!node) return
+  if (!window.confirm(`确定要删除“${node.name}”吗？`)) return closeContextMenu()
+  await workspaceService.deleteFile(node.path)
+  workspaceStore.removeFromTree(node.path)
+  if (node.type === 'file') workspaceStore.closeFile(node.path)
+  closeContextMenu()
 }
 </script>
 
 <template>
-  <div class="file-tree-panel" @click="closeContextMenu">
-    <div class="panel-toolbar">
-      <div class="toolbar-left">
-        <button class="tool-btn" @click="startNewFile" title="新建笔记">
-          <span>➕</span>
-        </button>
-        <button class="tool-btn" @click="startNewFolder" title="新建文件夹">
-          <span>📁</span>
-        </button>
-      </div>
-      <button class="tool-btn" title="刷新">
-        <span>🔄</span>
-      </button>
+  <section class="file-tree-panel" @click="closeContextMenu">
+    <div class="toolbar">
+      <button type="button" title="新建笔记" @click.stop="beginCreate('file')">＋📄</button>
+      <button type="button" title="新建文件夹" @click.stop="beginCreate('folder')">＋📁</button>
     </div>
-
-    <div class="new-input" v-if="showNewFileInput">
-      <input
-        v-model="newFileName"
-        type="text"
-        placeholder="笔记名称"
-        @keyup.enter="createFile"
-        @keyup.esc="showNewFileInput = false"
-        autofocus
-      />
+    <form v-if="newItemType" class="new-item" @submit.prevent="createItem">
+      <input v-model="newItemName" :placeholder="newItemType === 'file' ? '笔记名称' : '文件夹名称'" autofocus />
+      <button type="submit">创建</button>
+      <button type="button" @click="newItemType = null">取消</button>
+    </form>
+    <div class="tree">
+      <FileTreeNode v-for="node in workspaceStore.fileTree" :key="node.id" :node="node"
+        :active-path="workspaceStore.activeFilePath" @open="openNode" @context-menu="openContextMenu" />
     </div>
-    <div class="new-input" v-if="showNewFolderInput">
-      <input
-        v-model="newFolderName"
-        type="text"
-        placeholder="文件夹名称"
-        @keyup.enter="createFolder"
-        @keyup.esc="showNewFolderInput = false"
-        autofocus
-      />
-    </div>
-
-    <div class="tree-container">
-      <template v-for="node in workspaceStore.fileTree" :key="node.id">
-        <div class="tree-node-wrapper">
-          <TreeNode :node="node" :depth="0" @open="openFile" @toggle="toggleFolder" @context-menu="onContextMenu"
-            :renaming-path="renamingPath" :rename-value="renameValue"
-            @rename-start="startRename" @rename-finish="finishRename"
-            @delete-node="deleteNode"
-            @new-file="startNewFile" @new-folder="startNewFolder" />
-        </div>
-      </template>
-    </div>
-
     <Teleport to="body">
-      <div v-if="showContextMenu" class="context-menu"
-        :style="{ left: contextMenuPos.x + 'px', top: contextMenuPos.y + 'px' }"
-        @click.stop>
-        <button @click="() => { const n = workspaceStore.activeFile; if (n) startRename(n) }">✏️ 重命名</button>
-        <button @click="() => { const n = workspaceStore.activeFile; if (n) deleteNode(n) }" class="danger">🗑️ 删除</button>
+      <div v-if="contextTarget" class="context-menu"
+        :style="{ left: `${contextMenuPosition.x}px`, top: `${contextMenuPosition.y}px` }" @click.stop>
+        <button @click="renameTarget">重命名</button>
+        <button class="danger" @click="deleteTarget">删除</button>
       </div>
     </Teleport>
-  </div>
+  </section>
 </template>
 
-<script lang="ts">
-import { defineComponent, h } from 'vue'
-import type { FileNode } from '@/contracts'
-
-const TreeNode = defineComponent({
-  name: 'TreeNode',
-  props: {
-    node: { type: Object as () => FileNode, required: true },
-    depth: { type: Number, default: 0 },
-    renamingPath: { type: String, default: null },
-    renameValue: { type: String, default: '' },
-  },
-  emits: ['open', 'toggle', 'context-menu', 'rename-start', 'rename-finish', 'delete-node', 'new-file', 'new-folder'],
-  setup(props, { emit }) {
-    const isActive = (path: string) => {
-      const { useWorkspaceStore } = require('@/stores/workspace')
-      return useWorkspaceStore().activeFilePath === path
-    }
-
-    const handleClick = () => {
-      emit('open', props.node)
-    }
-
-    const handleContextMenu = (e: MouseEvent) => {
-      emit('context-menu', e, props.node)
-    }
-
-    const finishRename = () => {
-      emit('rename-finish', props.node)
-    }
-
-    return () => {
-      const isFolder = props.node.type === 'folder'
-      const isOpen = props.node.is_open
-      const isRenaming = props.renamingPath === props.node.path
-      const active = isActive(props.node.path)
-
-      return h('div', { class: 'tree-node' }, [
-        h('div', {
-          class: ['node-row', { active, folder: isFolder, open: isOpen }],
-          style: { paddingLeft: `${props.depth * 16 + 8}px` },
-          onClick: handleClick,
-          onContextmenu: handleContextMenu,
-        }, [
-          h('span', { class: 'chevron' }, isFolder ? (isOpen ? '▼' : '▶') : ''),
-          h('span', { class: 'node-icon' }, isFolder ? (isOpen ? '📂' : '📁') : '📄'),
-          isRenaming
-            ? h('input', {
-                class: 'rename-input',
-                value: props.renameValue,
-                autofocus: true,
-                onBlur: finishRename,
-                onKeyup: (e: KeyboardEvent) => {
-                  if (e.key === 'Enter') finishRename()
-                  if (e.key === 'Escape') emit('rename-finish', props.node)
-                },
-              })
-            : h('span', { class: 'node-name' }, props.node.name),
-        ]),
-        isFolder && isOpen && props.node.children && props.node.children.length
-          ? h('div', { class: 'node-children' },
-              props.node.children.map((child) =>
-                h(TreeNode, {
-                  key: child.id,
-                  node: child,
-                  depth: props.depth + 1,
-                  renamingPath: props.renamingPath,
-                  renameValue: props.renameValue,
-                  onOpen: (n: FileNode) => emit('open', n),
-                  onToggle: (n: FileNode) => emit('toggle', n.path),
-                  onContextmenu: (e: MouseEvent, n: FileNode) => emit('context-menu', e, n),
-                  onRenameStart: (n: FileNode) => emit('rename-start', n),
-                  onRenameFinish: (n: FileNode) => emit('rename-finish', n),
-                  onDeleteNode: (n: FileNode) => emit('delete-node', n),
-                  onNewFile: (p: string) => emit('new-file', p),
-                  onNewFolder: (p: string) => emit('new-folder', p),
-                })
-              )
-            )
-          : null,
-      ])
-    }
-  },
-})
-
-export default {}
-</script>
-
 <style scoped>
-.file-tree-panel {
-  height: 100%;
-  display: flex;
-  flex-direction: column;
-  font-size: var(--font-size-sm);
-}
-
-.panel-toolbar {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  padding: var(--space-sm) var(--space-md);
-  border-bottom: 1px solid var(--color-border-subtle);
-}
-
-.toolbar-left {
-  display: flex;
-  gap: 2px;
-}
-
-.tool-btn {
-  width: 28px;
-  height: 28px;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  border-radius: var(--radius-sm);
-  color: var(--color-text-secondary);
-  font-size: 14px;
-  transition: all var(--motion-fast);
-
-  &:hover {
-    background: var(--color-background-hover);
-    color: var(--color-text-primary);
-  }
-}
-
-.new-input {
-  padding: var(--space-sm) var(--space-md);
-
-  input {
-    width: 100%;
-    padding: 4px 8px;
-    background: var(--color-background-secondary);
-    border: 1px solid var(--color-border-focus);
-    border-radius: var(--radius-sm);
-    font-size: 13px;
-    outline: none;
-  }
-}
-
-.tree-container {
-  flex: 1;
-  overflow-y: auto;
-  overflow-x: hidden;
-  padding: var(--space-xs) 0;
-}
-
-.tree-node {
-  user-select: none;
-}
-
-.node-row {
-  display: flex;
-  align-items: center;
-  gap: 4px;
-  height: 28px;
-  padding-right: var(--space-md);
-  cursor: pointer;
-  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
-  margin-right: 4px;
-  transition: background var(--motion-fast);
-
-  &:hover {
-    background: var(--color-background-hover);
-  }
-
-  &.active {
-    background: var(--color-accent-soft);
-    color: var(--color-accent-primary);
-  }
-}
-
-.chevron {
-  width: 14px;
-  font-size: 9px;
-  color: var(--color-text-tertiary);
-  flex-shrink: 0;
-}
-
-.node-icon {
-  font-size: 14px;
-  flex-shrink: 0;
-}
-
-.node-name {
-  flex: 1;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-  color: var(--color-text-primary);
-}
-
-.rename-input {
-  flex: 1;
-  padding: 2px 4px;
-  font-size: 13px;
-  background: var(--color-surface-primary);
-  border: 1px solid var(--color-border-focus);
-  border-radius: var(--radius-sm);
-  outline: none;
-}
-
-.context-menu {
-  position: fixed;
-  z-index: var(--z-dropdown);
-  background: var(--color-surface-elevated);
-  border: 1px solid var(--color-border-default);
-  border-radius: var(--radius-md);
-  padding: 4px;
-  box-shadow: var(--shadow-lg);
-  min-width: 140px;
-  display: flex;
-  flex-direction: column;
-
-  button {
-    text-align: left;
-    padding: 6px 10px;
-    font-size: 13px;
-    color: var(--color-text-primary);
-    border-radius: var(--radius-sm);
-
-    &:hover {
-      background: var(--color-background-hover);
-    }
-
-    &.danger {
-      color: var(--color-error);
-    }
-  }
-}
+.file-tree-panel { height: 100%; }
+.toolbar { display: flex; gap: var(--space-xs); padding: var(--space-sm); border-bottom: 1px solid var(--color-border-subtle); }
+button { border: 0; border-radius: var(--radius-sm); padding: var(--space-xs) var(--space-sm); background: transparent; color: inherit; cursor: pointer; }
+button:hover { background: var(--color-background-secondary); }
+.new-item { display: flex; gap: var(--space-xs); padding: var(--space-sm); }
+.new-item input { min-width: 0; flex: 1; }
+.tree { padding: var(--space-xs); }
+.context-menu { position: fixed; z-index: 1000; display: grid; min-width: 130px; padding: var(--space-xs); border: 1px solid var(--color-border-default); border-radius: var(--radius-md); background: var(--color-background-primary); box-shadow: var(--shadow-md); }
+.context-menu button { text-align: left; }
+.context-menu .danger { color: var(--color-danger, #d33); }
 </style>
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index 997bf2c..091f4b2 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -1,5 +1,6 @@
 import { createRouter, createWebHashHistory } from 'vue-router'
 import { useWorkspaceStore } from '@/stores/workspace'
+import PlaceholderView from '@/features/common/PlaceholderView.vue'
 
 const routes = [
   {
@@ -17,59 +18,50 @@ const routes = [
   {
     path: '/search',
     name: 'search',
-    component: () => import('@/features/search/SearchView.vue'),
+    component: PlaceholderView,
     meta: { title: '搜索', requiresVault: true },
   },
   {
     path: '/chat',
     name: 'chat',
-    component: () => import('@/features/chat/ChatView.vue'),
+    component: PlaceholderView,
     meta: { title: 'AI 对话', requiresVault: true },
   },
   {
     path: '/agent/runs/:runId?',
     name: 'agent',
-    component: () => import('@/features/agent/AgentView.vue'),
+    component: PlaceholderView,
     meta: { title: 'Agent Trace', requiresVault: true },
   },
   {
     path: '/tasks',
     name: 'tasks',
-    component: () => import('@/features/tasks/TasksView.vue'),
+    component: PlaceholderView,
     meta: { title: '任务', requiresVault: true },
   },
   {
     path: '/extensions/skills',
     name: 'skills',
-    component: () => import('@/features/skills/SkillsView.vue'),
+    component: PlaceholderView,
     meta: { title: 'Skill 管理', requiresVault: true },
   },
   {
     path: '/extensions/plugins',
     name: 'plugins',
-    component: () => import('@/features/plugins/PluginsView.vue'),
+    component: PlaceholderView,
     meta: { title: 'Plugin 管理', requiresVault: true },
   },
   {
     path: '/themes',
     name: 'themes',
-    component: () => import('@/features/themes/ThemesView.vue'),
+    component: PlaceholderView,
     meta: { title: '主题管理', requiresVault: true },
   },
   {
     path: '/settings',
     name: 'settings',
-    component: () => import('@/features/settings/SettingsView.vue'),
+    component: PlaceholderView,
     meta: { title: '设置', requiresVault: true },
-    children: [
-      { path: '', redirect: '/settings/general' },
-      { path: 'general', component: () => import('@/features/settings/sections/GeneralSection.vue') },
-      { path: 'editor', component: () => import('@/features/settings/sections/EditorSection.vue') },
-      { path: 'providers', component: () => import('@/features/settings/sections/ProvidersSection.vue') },
-      { path: 'index', component: () => import('@/features/settings/sections/IndexSection.vue') },
-      { path: 'permissions', component: () => import('@/features/settings/sections/PermissionsSection.vue') },
-      { path: 'ai-core', component: () => import('@/features/settings/sections/AiCoreSection.vue') },
-    ],
   },
 ]
 
diff --git a/frontend/src/services/agentService.ts b/frontend/src/services/agentService.ts
index 102e661..b610ced 100644
--- a/frontend/src/services/agentService.ts
+++ b/frontend/src/services/agentService.ts
@@ -1,46 +1,61 @@
 import apiClient from './apiClient'
 import { SseClient } from './sseClient'
-import type { AgentRun, AgentEvent, ToolDefinition, PermissionRequest } from '@/contracts'
+import type { AgentRun, AgentEvent, ApiAgentRun, OperationResponse, PageMeta, ToolDefinition, PermissionRequest } from '@/contracts'
+
+function toAgentRun(run: ApiAgentRun): AgentRun {
+  return {
+    run_id: run.run_id,
+    status: run.status,
+    current_step: run.current_step,
+    max_steps: run.max_steps,
+    token_usage: {
+      input_tokens: 0,
+      output_tokens: 0,
+      total_tokens: run.token_usage,
+    },
+    started_at: run.created_at,
+    completed_at: ['completed', 'failed', 'cancelled'].includes(run.status) ? run.updated_at : undefined,
+    error: run.error_message ?? undefined,
+  }
+}
 
 export async function listAgentRuns(params?: {
   limit?: number
   offset?: number
 }): Promise<{ items: AgentRun[]; total: number }> {
-  return apiClient.get('/api/agent/runs', { params })
+  const response = await apiClient.get<{ items: ApiAgentRun[]; page: PageMeta }>('/api/agent/runs', { params })
+  return { items: response.items.map(toAgentRun), total: response.page.total }
 }
 
 export async function getAgentRun(runId: string): Promise<AgentRun> {
-  return apiClient.get(`/api/agent/runs/${runId}`)
+  return toAgentRun(await apiClient.get<ApiAgentRun>(`/api/agent/runs/${runId}`))
 }
 
 export interface CreateAgentRunRequest {
-  task: string
-  provider_id?: string
-  model?: string
+  input: string
+  provider_id: string
+  model: string
   skill_id?: string
   allowed_tools?: string[]
   max_steps?: number
-  tool_timeout?: number
-  run_timeout?: number
+  tool_timeout_seconds?: number
+  run_timeout_seconds?: number
   token_budget?: number
   allow_network?: boolean
   max_concurrent_tools?: number
 }
 
 export async function createAgentRun(request: CreateAgentRunRequest): Promise<AgentRun> {
-  return apiClient.post('/api/agent/runs', request)
+  return toAgentRun(await apiClient.post<ApiAgentRun>('/api/agent/runs', request))
 }
 
-export async function cancelAgentRun(runId: string): Promise<void> {
+export async function cancelAgentRun(runId: string): Promise<OperationResponse> {
   return apiClient.post(`/api/agent/runs/${runId}/cancel`)
 }
 
 export async function listTools(): Promise<ToolDefinition[]> {
-  try {
-    return await apiClient.get('/api/tools')
-  } catch {
-    return mockTools
-  }
+  const response = await apiClient.get<{ items: ToolDefinition[] }>('/api/tools')
+  return response.items
 }
 
 export function streamAgentEvents(
@@ -75,12 +90,10 @@ export function streamAgentEvents(
 export async function respondToPermission(
   runId: string,
   requestId: string,
-  decision: 'allow' | 'deny',
-  scope?: 'once' | 'session' | 'always'
-): Promise<void> {
+  decision: 'allow_once' | 'allow_session' | 'deny'
+): Promise<OperationResponse> {
   return apiClient.post(`/api/agent/runs/${runId}/permissions/${requestId}`, {
     decision,
-    scope,
   })
 }
 
diff --git a/frontend/src/services/apiClient.ts b/frontend/src/services/apiClient.ts
index a2e5654..df13010 100644
--- a/frontend/src/services/apiClient.ts
+++ b/frontend/src/services/apiClient.ts
@@ -1,6 +1,11 @@
 import type { ApiError, ErrorResponse } from '@/contracts'
 
-const BASE_URL = import.meta.env.VITE_API_BASE || ''
+const BASE_URL = import.meta.env.VITE_API_BASE_URL ?? import.meta.env.VITE_API_BASE ?? ''
+
+export function resolveApiUrl(path: string): string {
+  if (/^https?:\/\//i.test(path)) return path
+  return `${BASE_URL.replace(/\/$/, '')}/${path.replace(/^\//, '')}`
+}
 
 interface RequestOptions extends RequestInit {
   params?: Record<string, string | number | boolean | undefined>
@@ -22,7 +27,7 @@ export class ApiErrorClass extends Error {
 async function request<T>(path: string, options: RequestOptions = {}): Promise<T> {
   const { params, token, headers, ...rest } = options
 
-  let url = path.startsWith('http') ? path : `${BASE_URL}${path}`
+  let url = resolveApiUrl(path)
 
   if (params) {
     const usp = new URLSearchParams()
@@ -94,6 +99,13 @@ export const apiClient = {
       body: body !== undefined ? JSON.stringify(body) : undefined,
     })
   },
+  put<T>(path: string, body?: unknown, options?: Omit<RequestOptions, 'method' | 'body'>) {
+    return request<T>(path, {
+      ...options,
+      method: 'PUT',
+      body: body !== undefined ? JSON.stringify(body) : undefined,
+    })
+  },
   delete<T>(path: string, options?: Omit<RequestOptions, 'method'>) {
     return request<T>(path, { ...options, method: 'DELETE' })
   },
diff --git a/frontend/src/services/chatService.ts b/frontend/src/services/chatService.ts
index 6aa0bb3..35f12b2 100644
--- a/frontend/src/services/chatService.ts
+++ b/frontend/src/services/chatService.ts
@@ -1,27 +1,21 @@
-import apiClient from './apiClient'
 import { SseClient } from './sseClient'
 import type { Conversation, ChatMessage, ModelEvent } from '@/contracts'
 
-export async function listConversations(): Promise<Conversation[]> {
-  return apiClient.get('/api/conversations')
-}
-
-export async function getConversation(conversationId: string): Promise<Conversation> {
-  return apiClient.get(`/api/conversations/${conversationId}`)
-}
-
-export async function getMessages(conversationId: string): Promise<ChatMessage[]> {
-  return apiClient.get(`/api/conversations/${conversationId}/messages`)
-}
-
 export interface ChatRequest {
+  provider_id: string
+  model: string
   conversation_id?: string
-  message: string
-  provider_id?: string
-  model?: string
+  system?: string
+  messages: Array<{
+    role: 'system' | 'user' | 'assistant' | 'tool'
+    content: string
+    name?: string
+    tool_call_id?: string
+  }>
   use_rag?: boolean
-  skill_id?: string
   attachments?: string[]
+  temperature?: number
+  max_tokens?: number
 }
 
 export function streamChat(
diff --git a/frontend/src/services/index.ts b/frontend/src/services/index.ts
index 5208e4d..968f5b3 100644
--- a/frontend/src/services/index.ts
+++ b/frontend/src/services/index.ts
@@ -1,5 +1,5 @@
 export { apiClient, ApiErrorClass } from './apiClient'
-export type { ApiError } from './apiClient'
+export type { ApiError } from '@/contracts'
 export { SseClient } from './sseClient'
 export type { SseClientOptions, SseEventHandler } from './sseClient'
 export * as noteService from './noteService'
diff --git a/frontend/src/services/indexService.ts b/frontend/src/services/indexService.ts
index f365f94..72bcd34 100644
--- a/frontend/src/services/indexService.ts
+++ b/frontend/src/services/indexService.ts
@@ -1,25 +1,29 @@
 import apiClient from './apiClient'
-import type { IndexStatus } from '@/contracts'
+import type { ApiIndexJob, ApiIndexStatus, IndexStatus } from '@/contracts'
 
-export async function getIndexStatus(): Promise<IndexStatus> {
-  try {
-    return await apiClient.get('/api/index/status')
-  } catch {
-    return mockIndexStatus
+function toIndexStatus(status: ApiIndexStatus): IndexStatus {
+  return {
+    status: status.status === 'idle' ? 'idle' : status.status === 'failed' ? 'error' : 'indexing',
+    pending_jobs: status.pending_jobs,
+    total_notes: 0,
+    total_blocks: 0,
+    fts_enabled: true,
+    vector_enabled: true,
+    last_indexed_at: status.last_completed_at ?? undefined,
+    error: status.error_message ?? undefined,
   }
 }
 
-export async function rebuildIndex(scope: 'full' | 'fts' | 'vector' = 'full'): Promise<{ job_id: string }> {
-  return apiClient.post('/api/index/rebuild', { scope })
+export async function getIndexStatus(): Promise<IndexStatus> {
+  return toIndexStatus(await apiClient.get<ApiIndexStatus>('/api/index/status'))
 }
 
-export async function getIndexJob(jobId: string): Promise<{
-  job_id: string
-  status: 'queued' | 'running' | 'completed' | 'failed'
-  progress: number
-  total: number
-  error?: string
-}> {
+export async function rebuildIndex(scope: 'full' | 'fts' | 'vector' = 'full'): Promise<ApiIndexJob> {
+  const apiScope = scope === 'full' ? 'all' : scope === 'fts' ? 'notes' : 'vectors'
+  return apiClient.post<ApiIndexJob>('/api/index/rebuild', { scope: apiScope })
+}
+
+export async function getIndexJob(jobId: string): Promise<ApiIndexJob> {
   return apiClient.get(`/api/index/jobs/${jobId}`)
 }
 
diff --git a/frontend/src/services/noteService.ts b/frontend/src/services/noteService.ts
index 7771be8..d568c6c 100644
--- a/frontend/src/services/noteService.ts
+++ b/frontend/src/services/noteService.ts
@@ -1,38 +1,39 @@
 import apiClient from './apiClient'
-import type { Note, NoteBlock } from '@/contracts'
+import type { ApiNote, ApiNoteSummary, OperationResponse, PageMeta } from '@/contracts'
 
 export async function listNotes(params?: {
   folder?: string
   tag?: string
   limit?: number
   offset?: number
-}): Promise<{ items: Note[]; total: number }> {
+}): Promise<{ items: ApiNoteSummary[]; page: PageMeta }> {
   return apiClient.get('/api/notes', { params })
 }
 
-export async function getNote(noteId: string): Promise<{ note: Note; blocks: NoteBlock[] }> {
+export async function getNote(noteId: string): Promise<ApiNote> {
   return apiClient.get(`/api/notes/${noteId}`)
 }
 
 export async function createNote(data: {
   title: string
-  folder_path?: string
-  content?: string
-}): Promise<Note> {
+  folder?: string
+  markdown?: string
+  tags?: string[]
+}): Promise<ApiNote> {
   return apiClient.post('/api/notes', data)
 }
 
 export async function updateNote(
   noteId: string,
-  data: { title?: string; content?: string; tags?: string[] }
-): Promise<Note> {
+  data: { title?: string; markdown?: string; tags?: string[] }
+): Promise<ApiNote> {
   return apiClient.patch(`/api/notes/${noteId}`, data)
 }
 
-export async function deleteNote(noteId: string): Promise<void> {
+export async function deleteNote(noteId: string): Promise<OperationResponse> {
   return apiClient.delete(`/api/notes/${noteId}`)
 }
 
-export async function moveNote(noteId: string, target_folder: string): Promise<Note> {
-  return apiClient.post(`/api/notes/${noteId}/move`, { target_folder })
+export async function moveNote(noteId: string, folder: string): Promise<ApiNote> {
+  return apiClient.post(`/api/notes/${noteId}/move`, { folder })
 }
diff --git a/frontend/src/services/pluginService.ts b/frontend/src/services/pluginService.ts
index d2baf2b..ae81473 100644
--- a/frontend/src/services/pluginService.ts
+++ b/frontend/src/services/pluginService.ts
@@ -1,31 +1,59 @@
 import apiClient from './apiClient'
-import type { Plugin } from '@/contracts'
+import type { ApiPlugin, OperationResponse, Plugin, PluginContribution } from '@/contracts'
 
-export async function listPlugins(): Promise<Plugin[]> {
-  try {
-    return await apiClient.get('/api/plugins')
-  } catch {
-    return mockPlugins
+function toPlugin(plugin: ApiPlugin): Plugin {
+  const { manifest } = plugin
+  const contributions: PluginContribution[] = []
+  const append = (type: PluginContribution['type'], values: string[]) => {
+    values.forEach((id) => contributions.push({ type, id, name: id }))
+  }
+  append('tool', manifest.contributes.tools)
+  append('command', manifest.contributes.commands)
+  append('importer', manifest.contributes.importers)
+  append('exporter', manifest.contributes.exporters)
+  append('sidebar_panel', manifest.contributes.panels)
+  append('settings_section', manifest.contributes.settings_sections)
+  return {
+    plugin_id: manifest.plugin_id,
+    name: manifest.name,
+    version: manifest.version,
+    description: manifest.description,
+    status: plugin.status,
+    enabled: plugin.enabled,
+    permissions: plugin.granted_permissions,
+    contributions,
+    backend_type: manifest.backend.type,
+    transport: manifest.backend.transport,
+    last_error: plugin.error_message ?? undefined,
   }
 }
 
-export async function getPlugin(pluginId: string): Promise<Plugin> {
-  return apiClient.get(`/api/plugins/${pluginId}`)
+export async function listPlugins(): Promise<Plugin[]> {
+  const response = await apiClient.get<{ items: ApiPlugin[] }>('/api/plugins')
+  return response.items.map(toPlugin)
 }
 
-export async function installPlugin(pluginId: string): Promise<Plugin> {
-  return apiClient.post('/api/plugins/install', { plugin_id: pluginId })
+export async function getPlugin(pluginId: string): Promise<Plugin> {
+  return toPlugin(await apiClient.get<ApiPlugin>(`/api/plugins/${pluginId}`))
+}
+
+export async function installPlugin(packagePath: string): Promise<Plugin> {
+  return toPlugin(await apiClient.post<ApiPlugin>('/api/plugins/install', { package_path: packagePath }))
 }
 
 export async function enablePlugin(pluginId: string): Promise<Plugin> {
-  return apiClient.post(`/api/plugins/${pluginId}/enable`)
+  return toPlugin(await apiClient.post<ApiPlugin>(`/api/plugins/${pluginId}/enable`))
 }
 
 export async function disablePlugin(pluginId: string): Promise<Plugin> {
-  return apiClient.post(`/api/plugins/${pluginId}/disable`)
+  return toPlugin(await apiClient.post<ApiPlugin>(`/api/plugins/${pluginId}/disable`))
 }
 
-export async function uninstallPlugin(pluginId: string): Promise<void> {
+export async function grantPluginPermissions(pluginId: string, permissions: string[]): Promise<Plugin> {
+  return toPlugin(await apiClient.put<ApiPlugin>(`/api/plugins/${pluginId}/permissions`, { permissions }))
+}
+
+export async function uninstallPlugin(pluginId: string): Promise<OperationResponse> {
   return apiClient.delete(`/api/plugins/${pluginId}`)
 }
 
@@ -80,7 +108,7 @@ export const mockPlugins: Plugin[] = [
     contributions: [
       { type: 'sidebar_panel', id: 'kanban.panel', name: '任务看板', description: '以看板方式查看和管理任务' },
     ],
-    backend_type: 'internal',
+    backend_type: 'internal_rpc',
   },
   {
     plugin_id: 'pdf-importer',
@@ -114,6 +142,6 @@ export const mockPlugins: Plugin[] = [
       { type: 'sidebar_panel', id: 'calendar.widget', name: '日历小部件', description: '侧边栏日历视图' },
     ],
     backend_type: 'mcp',
-    transport: 'websocket',
+    transport: 'http',
   },
 ]
diff --git a/frontend/src/services/providerService.ts b/frontend/src/services/providerService.ts
index 75397fa..ddaeee1 100644
--- a/frontend/src/services/providerService.ts
+++ b/frontend/src/services/providerService.ts
@@ -1,36 +1,67 @@
 import apiClient from './apiClient'
-import type { ProviderConfig, ModelInfo } from '@/contracts'
+import type { ApiModelInfo, ApiProviderConfig, ModelCapability, ModelInfo, OperationResponse, ProviderConfig } from '@/contracts'
 
-export async function listProviders(): Promise<ProviderConfig[]> {
-  try {
-    return await apiClient.get('/api/providers')
-  } catch {
-    return mockProviders
+function capabilityMap(capabilities: string[]): Partial<ModelCapability> {
+  return Object.fromEntries(capabilities.map((capability) => [capability, true])) as Partial<ModelCapability>
+}
+
+function toProvider(provider: ApiProviderConfig): ProviderConfig {
+  return {
+    provider_id: provider.provider_id,
+    provider_type: provider.provider_type,
+    name: provider.name,
+    base_url: provider.base_url ?? undefined,
+    default_model: provider.default_model ?? '',
+    enabled: provider.enabled,
+    capabilities: capabilityMap(provider.capabilities),
+    credential_id: provider.credential_id ?? undefined,
+    has_credential: Boolean(provider.credential_id) || provider.provider_type === 'mock',
   }
 }
 
+function toModel(model: ApiModelInfo): ModelInfo {
+  return { model_id: model.model, name: model.display_name, capabilities: capabilityMap(model.capabilities) }
+}
+
+export async function listProviders(): Promise<ProviderConfig[]> {
+  const response = await apiClient.get<{ items: ApiProviderConfig[] }>('/api/providers')
+  return response.items.map(toProvider)
+}
+
 export async function getProvider(providerId: string): Promise<ProviderConfig> {
-  return apiClient.get(`/api/providers/${providerId}`)
+  return toProvider(await apiClient.get<ApiProviderConfig>(`/api/providers/${providerId}`))
 }
 
-export async function createProvider(data: Omit<ProviderConfig, 'provider_id'> & { api_key?: string }): Promise<ProviderConfig> {
-  return apiClient.post('/api/providers', data)
+export async function createProvider(data: Omit<ProviderConfig, 'provider_id'>): Promise<ProviderConfig> {
+  const response = await apiClient.post<ApiProviderConfig>('/api/providers', {
+    provider_type: data.provider_type,
+    name: data.name,
+    base_url: data.base_url,
+    default_model: data.default_model || null,
+    credential_id: data.credential_id,
+    enabled: data.enabled,
+  })
+  return toProvider(response)
 }
 
-export async function updateProvider(providerId: string, data: Partial<ProviderConfig> & { api_key?: string }): Promise<ProviderConfig> {
-  return apiClient.patch(`/api/providers/${providerId}`, data)
+export async function updateProvider(providerId: string, data: Partial<ProviderConfig>): Promise<ProviderConfig> {
+  const response = await apiClient.patch<ApiProviderConfig>(`/api/providers/${providerId}`, {
+    name: data.name,
+    base_url: data.base_url,
+    default_model: data.default_model,
+    credential_id: data.credential_id,
+    enabled: data.enabled,
+  })
+  return toProvider(response)
 }
 
-export async function deleteProvider(providerId: string): Promise<void> {
+export async function deleteProvider(providerId: string): Promise<OperationResponse> {
   return apiClient.delete(`/api/providers/${providerId}`)
 }
 
 export async function listModels(providerId: string): Promise<ModelInfo[]> {
-  try {
-    return await apiClient.get(`/api/providers/${providerId}/models`)
-  } catch {
-    return mockModels[providerId] || []
-  }
+  const response = await apiClient.get<{ provider_id: string; items: ApiModelInfo[] }>(`/api/providers/${providerId}/models`)
+  return response.items.map(toModel)
 }
 
 export interface TestResult {
@@ -42,8 +73,8 @@ export interface TestResult {
 
 export async function testProvider(providerId: string): Promise<TestResult> {
   try {
-    const result = await apiClient.post<{ success: boolean; latency_ms: number }>('/api/providers/test', { provider_id: providerId })
-    return { success: result.success, latency_ms: result.latency_ms }
+    const result = await apiClient.post<{ success: boolean; latency_ms?: number | null; message: string }>('/api/providers/test', { provider_id: providerId })
+    return { success: result.success, latency_ms: result.latency_ms ?? undefined, error_message: result.success ? undefined : result.message }
   } catch (e: any) {
     return { success: false, error_code: e.code || 'TEST_FAILED', error_message: e.message }
   }
@@ -51,7 +82,7 @@ export async function testProvider(providerId: string): Promise<TestResult> {
 
 export const mockProviders: ProviderConfig[] = [
   {
-    provider_id: 'mock-provider',
+    provider_id: 'mock',
     provider_type: 'mock',
     name: 'Mock Provider (测试)',
     default_model: 'mock-1',
@@ -69,7 +100,7 @@ export const mockProviders: ProviderConfig[] = [
   },
   {
     provider_id: 'openai-compat-1',
-    provider_type: 'openai-compatible',
+    provider_type: 'openai_compatible',
     name: 'OpenAI 兼容服务',
     base_url: 'https://api.openai.com/v1',
     default_model: 'gpt-4o-mini',
@@ -106,7 +137,7 @@ export const mockProviders: ProviderConfig[] = [
 ]
 
 export const mockModels: Record<string, ModelInfo[]> = {
-  'mock-provider': [
+  mock: [
     {
       model_id: 'mock-1',
       name: 'Mock Model v1',
diff --git a/frontend/src/services/searchService.ts b/frontend/src/services/searchService.ts
index fd7a3e4..81758b5 100644
--- a/frontend/src/services/searchService.ts
+++ b/frontend/src/services/searchService.ts
@@ -1,15 +1,45 @@
 import apiClient from './apiClient'
-import type { SearchRequest, SearchResult } from '@/contracts'
+import type { ApiSearchResult, PageMeta, SearchRequest, SearchResult } from '@/contracts'
 
 export async function search(request: SearchRequest): Promise<{
   results: SearchResult[]
   total: number
   mode: SearchRequest['mode']
 }> {
-  return apiClient.post('/api/search', request)
+  const response = await apiClient.post<{
+    query: string
+    mode: 'fts' | 'vector' | 'hybrid'
+    items: ApiSearchResult[]
+    page: PageMeta
+  }>('/api/search', {
+    query: request.query,
+    mode: request.mode ?? 'hybrid',
+    folders: request.folder ? [request.folder] : [],
+    note_ids: request.note_id ? [request.note_id] : [],
+    tags: request.tag ? [request.tag] : [],
+    limit: request.limit ?? 20,
+    offset: request.offset ?? 0,
+  })
+  return {
+    results: response.items.map((item) => ({
+      block_id: item.block_id,
+      note_id: item.note_id,
+      note_title: item.title,
+      file_path: item.file_path,
+      heading_path: item.heading_path.join(' / '),
+      snippet: item.snippet ?? '',
+      score: item.score,
+      match_type: response.mode,
+    })),
+    total: response.page.total,
+    mode: response.mode,
+  }
 }
 
-export async function searchMock(query: string, mode = 'hybrid' as const): Promise<{
+export async function searchMock(
+  query: string,
+  mode: 'fts' | 'vector' | 'hybrid' = 'hybrid'
+): Promise<{
   results: SearchResult[]
   total: number
   mode: 'fts' | 'vector' | 'hybrid'
diff --git a/frontend/src/services/skillService.ts b/frontend/src/services/skillService.ts
index a2f61a7..c2babca 100644
--- a/frontend/src/services/skillService.ts
+++ b/frontend/src/services/skillService.ts
@@ -1,31 +1,45 @@
 import apiClient from './apiClient'
-import type { Skill } from '@/contracts'
+import type { ApiSkill, OperationResponse, Skill } from '@/contracts'
 
-export async function listSkills(): Promise<Skill[]> {
-  try {
-    return await apiClient.get('/api/skills')
-  } catch {
-    return mockSkills
+function toSkill(skill: ApiSkill): Skill {
+  const { manifest } = skill
+  return {
+    skill_id: manifest.skill_id,
+    name: manifest.name,
+    version: manifest.version,
+    description: manifest.description,
+    permissions: manifest.permissions,
+    tools: manifest.tools,
+    retrieval_config: manifest.retrieval,
+    model_requirements: { capabilities: manifest.model.required_capabilities },
+    status: skill.status,
+    missing_dependencies: skill.missing_dependencies,
+    enabled: skill.enabled,
   }
 }
 
-export async function getSkill(skillId: string): Promise<Skill> {
-  return apiClient.get(`/api/skills/${skillId}`)
+export async function listSkills(): Promise<Skill[]> {
+  const response = await apiClient.get<{ items: ApiSkill[] }>('/api/skills')
+  return response.items.map(toSkill)
 }
 
-export async function installSkill(skillId: string): Promise<Skill> {
-  return apiClient.post('/api/skills/install', { skill_id: skillId })
+export async function getSkill(skillId: string): Promise<Skill> {
+  return toSkill(await apiClient.get<ApiSkill>(`/api/skills/${skillId}`))
+}
+
+export async function installSkill(packagePath: string): Promise<Skill> {
+  return toSkill(await apiClient.post<ApiSkill>('/api/skills/install', { package_path: packagePath }))
 }
 
 export async function enableSkill(skillId: string): Promise<Skill> {
-  return apiClient.post(`/api/skills/${skillId}/enable`)
+  return toSkill(await apiClient.post<ApiSkill>(`/api/skills/${skillId}/enable`))
 }
 
 export async function disableSkill(skillId: string): Promise<Skill> {
-  return apiClient.post(`/api/skills/${skillId}/disable`)
+  return toSkill(await apiClient.post<ApiSkill>(`/api/skills/${skillId}/disable`))
 }
 
-export async function uninstallSkill(skillId: string): Promise<void> {
+export async function uninstallSkill(skillId: string): Promise<OperationResponse> {
   return apiClient.delete(`/api/skills/${skillId}`)
 }
 
diff --git a/frontend/src/services/sseClient.ts b/frontend/src/services/sseClient.ts
index d5341ee..e94b9ce 100644
--- a/frontend/src/services/sseClient.ts
+++ b/frontend/src/services/sseClient.ts
@@ -1,3 +1,5 @@
+import { resolveApiUrl } from './apiClient'
+
 export type SseEventHandler = (event: string, data: Record<string, unknown>) => void
 
 export interface SseClientOptions {
@@ -37,7 +39,7 @@ export class SseClient {
         headers['Authorization'] = `Bearer ${token}`
       }
 
-      const resp = await fetch(url, {
+      const resp = await fetch(resolveApiUrl(url), {
         method,
         headers,
         body: body !== undefined ? JSON.stringify(body) : undefined,
@@ -53,6 +55,39 @@ export class SseClient {
       onOpen?.()
 
       const decoder = new TextDecoder('utf-8')
+      let eventName = 'message'
+      let dataLines: string[] = []
+      let doneNotified = false
+
+      const dispatchEvent = () => {
+        if (!dataLines.length) {
+          eventName = 'message'
+          return
+        }
+        try {
+          const data = JSON.parse(dataLines.join('\n')) as Record<string, unknown>
+          onEvent?.(eventName, data)
+          if (!doneNotified && ['Done', 'RunCompleted', 'RunFailed', 'RunCancelled'].includes(eventName)) {
+            doneNotified = true
+            onDone?.()
+          }
+        } catch (error) {
+          onError?.(error instanceof Error ? error : new Error('Malformed SSE data'))
+        }
+        eventName = 'message'
+        dataLines = []
+      }
+
+      const consumeLine = (line: string) => {
+        if (line === '') return dispatchEvent()
+        if (line.startsWith(':')) return
+        const separator = line.indexOf(':')
+        const field = separator === -1 ? line : line.slice(0, separator)
+        let fieldValue = separator === -1 ? '' : line.slice(separator + 1)
+        if (fieldValue.startsWith(' ')) fieldValue = fieldValue.slice(1)
+        if (field === 'event') eventName = fieldValue
+        if (field === 'data') dataLines.push(fieldValue)
+      }
 
       while (true) {
         const { value, done } = await this.reader.read()
@@ -60,39 +95,15 @@ export class SseClient {
 
         this.buffer += decoder.decode(value, { stream: true })
 
-        const lines = this.buffer.split('\n')
+        const lines = this.buffer.split(/\r?\n/)
         this.buffer = lines.pop() || ''
-
-        let eventName = 'message'
-        let dataStr = ''
-
-        for (const line of lines) {
-          const trimmed = line.trim()
-          if (!trimmed) {
-            if (dataStr) {
-              try {
-                const data = JSON.parse(dataStr)
-                onEvent?.(eventName, data)
-                if (eventName === 'Done' || eventName === 'RunCompleted' || eventName === 'RunFailed' || eventName === 'RunCancelled') {
-                  onDone?.()
-                }
-              } catch {
-                /* ignore malformed json */
-              }
-              eventName = 'message'
-              dataStr = ''
-            }
-            continue
-          }
-
-          if (trimmed.startsWith('event:')) {
-            eventName = trimmed.slice(6).trim()
-          } else if (trimmed.startsWith('data:')) {
-            const d = trimmed.slice(5).trim()
-            dataStr += dataStr ? '\n' + d : d
-          }
-        }
+        lines.forEach(consumeLine)
       }
+
+      this.buffer += decoder.decode()
+      if (this.buffer) consumeLine(this.buffer.replace(/\r$/, ''))
+      dispatchEvent()
+      if (!doneNotified) onDone?.()
     } catch (e) {
       if ((e as Error).name === 'AbortError') return
       onError?.(e as Error)
diff --git a/frontend/src/services/systemService.ts b/frontend/src/services/systemService.ts
index d7c896d..5672e68 100644
--- a/frontend/src/services/systemService.ts
+++ b/frontend/src/services/systemService.ts
@@ -14,10 +14,10 @@ export async function getStatus(): Promise<SystemStatus> {
     return await apiClient.get<SystemStatus>('/api/status')
   } catch {
     return {
+      status: 'ok',
       name: 'notes-agent',
       version: '0.1.0',
       environment: import.meta.env.DEV ? 'development' : 'production',
-      ai_core_available: false,
     }
   }
 }
diff --git a/frontend/src/services/taskService.ts b/frontend/src/services/taskService.ts
index 478e8d6..9acda98 100644
--- a/frontend/src/services/taskService.ts
+++ b/frontend/src/services/taskService.ts
@@ -1,42 +1,62 @@
 import apiClient from './apiClient'
-import type { TaskItem, TaskStatus, TaskPriority } from '@/contracts'
+import type { ApiTask, OperationResponse, PageMeta, TaskItem, TaskStatus, TaskPriority } from '@/contracts'
 
-export async function listTasks(params?: {
-  status?: TaskStatus
-  priority?: TaskPriority
-  source?: 'user' | 'note' | 'agent'
-  limit?: number
-  offset?: number
-}): Promise<{ items: TaskItem[]; total: number }> {
-  try {
-    return await apiClient.get('/api/tasks', { params })
-  } catch {
-    return { items: mockTasks, total: mockTasks.length }
+function toTask(task: ApiTask): TaskItem {
+  return {
+    task_id: task.task_id,
+    title: task.title,
+    description: task.description,
+    status: task.status,
+    priority: 'medium',
+    due_date: task.due_at ?? undefined,
+    note_id: task.note_id ?? undefined,
+    source: 'user',
+    created_at: task.created_at,
+    updated_at: task.updated_at,
   }
 }
 
+export async function listTasks(params?: {
+  limit?: number
+  offset?: number
+}): Promise<{ items: TaskItem[]; total: number }> {
+  const response = await apiClient.get<{ items: ApiTask[]; page: PageMeta }>('/api/tasks', {
+    params: { limit: params?.limit, offset: params?.offset },
+  })
+  return { items: response.items.map(toTask), total: response.page.total }
+}
+
 export async function getTask(taskId: string): Promise<TaskItem> {
-  return apiClient.get(`/api/tasks/${taskId}`)
+  return toTask(await apiClient.get<ApiTask>(`/api/tasks/${taskId}`))
 }
 
 export async function createTask(data: {
   title: string
   description?: string
-  priority?: TaskPriority
   due_date?: string
   note_id?: string
 }): Promise<TaskItem> {
-  return apiClient.post('/api/tasks', data)
+  return toTask(await apiClient.post<ApiTask>('/api/tasks', {
+    title: data.title,
+    description: data.description ?? '',
+    due_at: data.due_date,
+    note_id: data.note_id,
+  }))
 }
 
 export async function updateTask(
   taskId: string,
   data: Partial<Pick<TaskItem, 'title' | 'description' | 'status' | 'priority' | 'due_date'>>
 ): Promise<TaskItem> {
-  return apiClient.patch(`/api/tasks/${taskId}`, data)
+  return toTask(await apiClient.patch<ApiTask>(`/api/tasks/${taskId}`, {
+    title: data.title,
+    description: data.description,
+    status: data.status,
+    due_at: data.due_date,
+  }))
 }
 
-export async function deleteTask(taskId: string): Promise<void> {
+export async function deleteTask(taskId: string): Promise<OperationResponse> {
   return apiClient.delete(`/api/tasks/${taskId}`)
 }
 
diff --git a/frontend/src/services/workspaceService.ts b/frontend/src/services/workspaceService.ts
index 1a8a032..bede20c 100644
--- a/frontend/src/services/workspaceService.ts
+++ b/frontend/src/services/workspaceService.ts
@@ -209,13 +209,13 @@ export function saveFileContent(filePath: string, content: string): Promise<void
 }
 
 export function createFile(folderPath: string, name: string, content = ''): Promise<FileNode> {
-  const path = `${folderPath}/${name}`
+  const path = `${folderPath === '/' ? '' : folderPath}/${name}`
   const id = `n-${Date.now()}`
   return Promise.resolve({ id, name, path, type: 'file' })
 }
 
 export function createFolder(parentPath: string, name: string): Promise<FileNode> {
-  const path = `${parentPath}/${name}`
+  const path = `${parentPath === '/' ? '' : parentPath}/${name}`
   const id = `f-${Date.now()}`
   return Promise.resolve({ id, name, path, type: 'folder', is_open: true, children: [] })
 }
diff --git a/frontend/src/stores/agent.ts b/frontend/src/stores/agent.ts
index 659a01f..414d959 100644
--- a/frontend/src/stores/agent.ts
+++ b/frontend/src/stores/agent.ts
@@ -72,7 +72,7 @@ export const useAgentStore = defineStore('agent', () => {
         event: 'RunStarted',
         sequence: 1,
         run_id: run.run_id,
-        data: { task: request.task },
+        data: { input: request.input },
         timestamp: new Date().toISOString(),
       }]
       isRunning.value = true
@@ -112,9 +112,10 @@ export const useAgentStore = defineStore('agent', () => {
     isRunning.value = false
   }
 
-  async function respondPermission(decision: 'allow' | 'deny', scope: 'once' | 'session' | 'always' = 'once') {
+  async function respondPermission(decision: 'allow' | 'deny', scope: 'once' | 'session' = 'once') {
     if (!activeRunId.value || !permissionRequest.value) return
-    await agentService.respondToPermission(activeRunId.value, permissionRequest.value.request_id, decision, scope)
+    const apiDecision = decision === 'deny' ? 'deny' : scope === 'session' ? 'allow_session' : 'allow_once'
+    await agentService.respondToPermission(activeRunId.value, permissionRequest.value.request_id, apiDecision)
     permissionRequest.value = null
   }
 
diff --git a/frontend/src/stores/chat.ts b/frontend/src/stores/chat.ts
index 8af2e7c..309ac04 100644
--- a/frontend/src/stores/chat.ts
+++ b/frontend/src/stores/chat.ts
@@ -1,7 +1,7 @@
 import { defineStore } from 'pinia'
 import { ref, computed } from 'vue'
-import type { ChatMessage, Conversation, Citation } from '@/contracts'
-import { mockConversations, mockMessages } from '@/services/chatService'
+import type { ChatMessage, Conversation } from '@/contracts'
+import { mockConversations, mockMessages, streamChat } from '@/services/chatService'
 import type { SseClient } from '@/services/sseClient'
 
 export const useChatStore = defineStore('chat', () => {
@@ -12,7 +12,7 @@ export const useChatStore = defineStore('chat', () => {
   const inputText = ref('')
   const useRag = ref(true)
   const selectedSkillId = ref<string | null>(null)
-  const selectedProviderId = ref('mock-provider')
+  const selectedProviderId = ref('mock')
   const selectedModel = ref('mock-1')
   let sseClient: SseClient | null = null
 
@@ -35,7 +35,7 @@ export const useChatStore = defineStore('chat', () => {
 
     if (!activeConversationId.value) {
       const newConv: Conversation = {
-        conversation_id,
+        conversation_id: conversationId,
         title: text.slice(0, 30),
         created_at: new Date().toISOString(),
         updated_at: new Date().toISOString(),
@@ -67,31 +67,29 @@ export const useChatStore = defineStore('chat', () => {
     }
     messages.value.push(aiMsg)
 
-    // Mock streaming
-    const fullText =
-      '这是一个模拟的 AI 回复。在实际环境中，这里会通过 SSE 接收后端 AI Core 的流式输出，基于 RAG 引擎和你的知识库生成回答，并附带来源引用。\n\n**要点总结：**\n1. 这是演示用的流式输出\n2. 实际会调用 ModelEvent SSE\n3. 支持 Citation、Tool Call 等事件\n\n你可以在设置中配置真实的模型 Provider 来启用完整功能。'
-    const citations: Citation[] = [
-      {
-        note_id: 'n-rbt',
-        block_id: 'b1',
-        file_path: '/数据结构/红黑树.md',
-        heading_path: '数据结构 / 红黑树 / 概述',
-        content: '红黑树是一种自平衡二叉搜索树...',
+    sseClient = streamChat({
+      provider_id: selectedProviderId.value,
+      model: selectedModel.value,
+      conversation_id: conversationId,
+      use_rag: useRag.value,
+      messages: messages.value
+        .filter((message) => message !== aiMsg)
+        .map((message) => ({ role: message.role, content: message.content })),
+    }, {
+      onEvent(event) {
+        if (event.event === 'TextDelta') aiMsg.content += String(event.data.text ?? '')
+        if (event.event === 'Error') aiMsg.content += `\n\n生成失败：${String(event.data.message ?? '未知错误')}`
       },
-    ]
-
-    let i = 0
-    const interval = setInterval(() => {
-      if (i >= fullText.length) {
-        clearInterval(interval)
+      onError(error) {
+        aiMsg.content += `\n\n连接失败：${error.message}`
         isStreaming.value = false
-        aiMsg.citations = citations
-        return
-      }
-      const chunk = fullText.slice(i, i + 3)
-      aiMsg.content += chunk
-      i += 3
-    }, 20)
+        sseClient = null
+      },
+      onDone() {
+        isStreaming.value = false
+        sseClient = null
+      },
+    })
   }
 
   function stopGeneration() {
diff --git a/frontend/src/stores/provider.ts b/frontend/src/stores/provider.ts
index 1c8f614..2c317f9 100644
--- a/frontend/src/stores/provider.ts
+++ b/frontend/src/stores/provider.ts
@@ -1,12 +1,12 @@
 import { defineStore } from 'pinia'
 import { ref, computed } from 'vue'
 import type { ProviderConfig, ModelInfo } from '@/contracts'
-import { mockProviders, mockModels } from '@/services/providerService'
+import { listModels, listProviders, mockProviders, mockModels } from '@/services/providerService'
 
 export const useProviderStore = defineStore('provider', () => {
   const providers = ref<ProviderConfig[]>(mockProviders)
   const modelsByProvider = ref<Record<string, ModelInfo[]>>(mockModels)
-  const defaultProviderId = ref('mock-provider')
+  const defaultProviderId = ref('mock')
   const isLoading = ref(false)
 
   const enabledProviders = computed(() => providers.value.filter((p) => p.enabled))
@@ -17,7 +17,6 @@ export const useProviderStore = defineStore('provider', () => {
   async function loadProviders() {
     isLoading.value = true
     try {
-      const { listProviders } = await import('@/services/providerService')
       providers.value = await listProviders()
     } finally {
       isLoading.value = false
@@ -25,11 +24,10 @@ export const useProviderStore = defineStore('provider', () => {
   }
 
   async function loadModels(providerId: string) {
-    const { listModels } = await import('@/services/providerService')
     modelsByProvider.value[providerId] = await listModels(providerId)
   }
 
-  async function addProvider(data: Omit<ProviderConfig, 'provider_id'> & { api_key?: string }) {
+  async function addProvider(data: Omit<ProviderConfig, 'provider_id'>) {
     const newProvider: ProviderConfig = {
       ...data,
       provider_id: `prov-${Date.now()}`,
diff --git a/frontend/src/stores/search.ts b/frontend/src/stores/search.ts
index 9cb4d62..03cae07 100644
--- a/frontend/src/stores/search.ts
+++ b/frontend/src/stores/search.ts
@@ -21,7 +21,7 @@ export const useSearchStore = defineStore('search', () => {
     error.value = null
 
     try {
-      const resp = await searchService.searchMock(request.query, request.mode || 'hybrid')
+      const resp = await searchService.search(request)
       results.value = resp.results
       total.value = resp.total
       selectedIndex.value = 0
diff --git a/frontend/src/stores/workspace.ts b/frontend/src/stores/workspace.ts
index 56ae0db..50a3812 100644
--- a/frontend/src/stores/workspace.ts
+++ b/frontend/src/stores/workspace.ts
@@ -88,6 +88,10 @@ export const useWorkspaceStore = defineStore('workspace', () => {
   }
 
   function addFileToTree(parentPath: string, file: FileNode) {
+    if (parentPath === '/' || parentPath === '') {
+      fileTree.value.push(file)
+      return
+    }
     const parent = findNodeByPath(fileTree.value, parentPath)
     if (parent?.children) {
       parent.children.push(file)
diff --git a/frontend/tsconfig.app.json b/frontend/tsconfig.app.json
index 4d16005..4c5cfb1 100644
--- a/frontend/tsconfig.app.json
+++ b/frontend/tsconfig.app.json
@@ -11,6 +11,10 @@
     "esModuleInterop": true,
     "lib": ["ES2022", "DOM", "DOM.Iterable"],
     "types": ["vite/client"],
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["src/*"]
+    },
     "noEmit": true
   },
   "include": ["src/**/*.ts", "src/**/*.vue"]