feat: Grok Build (grok) agent support — detection, extensions, config scan

README.md

@@ -70,6 +70,7 @@ HarnessKit manages **all five extension types** from a unified interface — **S
 | **Kiro** | ✓ | ✓ | — | ✓ | ✓ |
 | **Oh My Pi** | ✓ | ✓ | ✓ | — | ✓ |
 | **DeepSeek Harness** | ✓ | ✓ | ✓ | — | ✓ |
+| **Grok Build** | ✓ | ✓ | ✓ | ✓ | ✓ |
 
 <small><i>* "—" indicates the agent currently does not support this extension type. Devin Desktop support keeps legacy Windsurf paths compatible.</i></small>
 
@@ -89,7 +90,7 @@ HarnessKit manages **all five extension types** from a unified interface — **S
 
 ### 🤖 Agent Configs, Memory & Rules
 
-HarnessKit manages every agent's **Configs**, **Memory**, **Rules**, **Subagents**, and **Ignore** files from one place. Currently supporting **12 agents**: **Claude Code**, **Codex**, **Gemini CLI**, **Cursor**, **Antigravity**, **Copilot**, **Devin Desktop**, **OpenCode**, **Hermes**, **Kiro**, **Oh My Pi**, and **DeepSeek Harness**.
+HarnessKit manages every agent's **Configs**, **Memory**, **Rules**, **Subagents**, and **Ignore** files from one place. Currently supporting **13 agents**: **Claude Code**, **Codex**, **Gemini CLI**, **Cursor**, **Antigravity**, **Copilot**, **Devin Desktop**, **OpenCode**, **Hermes**, **Kiro**, **Oh My Pi**, **DeepSeek Harness**, and **Grok Build**.
 
 - **Config file tracking** — Automatically discovers every agent's config files — both global and per-project. Add your project directories or custom paths and HarnessKit picks them up alongside the global ones.
 - **Per-agent dashboard** — Each agent gets its own page with all files organized by category, showing scope, path, file size, and a summary of installed extensions. Expand any file to preview its content right in the app.
@@ -177,10 +178,11 @@ HarnessKit ships a standalone command-line interface (`hk`) for terminal-first w
 
 ```shell
 $ hk status
-  Agents        12 detected (claude · codex · gemini · cursor · antigravity · copilot · windsurf · opencode · hermes · kiro · omp · dsh)
+  Agents        13 detected (claude · codex · gemini · cursor · antigravity · copilot · windsurf · opencode · hermes · kiro · omp · dsh · grok)
   Extensions    136 total (124 skills · 2 mcp · 8 plugins · 1 hooks · 1 clis)
 
 $ hk list --kind skill --agent claude    # filter by type and agent
+$ hk list --kind mcp --agent grok        # Grok Build MCP servers
 $ hk audit                               # security audit with trust scores
 $ hk enable my-skill                     # enable by name
 $ hk disable --pack owner/repo           # batch disable by source

README.zh-CN.md

@@ -70,6 +70,7 @@ HarnessKit 通过统一界面管理 **全部五种扩展类型** —— **Skill*
 | **Kiro** | ✓ | ✓ | — | ✓ | ✓ |
 | **Oh My Pi** | ✓ | ✓ | ✓ | — | ✓ |
 | **DeepSeek Harness** | ✓ | ✓ | ✓ | — | ✓ |
+| **Grok Build** | ✓ | ✓ | ✓ | ✓ | ✓ |
 
 <small><i>* "—" 表示该 Agent 目前不支持此扩展类型。Devin Desktop 支持会继续兼容旧 Windsurf 路径。</i></small>
 
@@ -89,7 +90,7 @@ HarnessKit 通过统一界面管理 **全部五种扩展类型** —— **Skill*
 
 ### 🤖 Agent 配置、记忆与规则
 
-HarnessKit 统一管理每个 Agent 的 **配置**、**记忆**、**规则**、**子 Agent** 与 **忽略**（Ignore）文件。目前支持 **12 个 Agent**：**Claude Code**、**Codex**、**Gemini CLI**、**Cursor**、**Antigravity**、**Copilot**、**Devin Desktop**、**OpenCode**、**Hermes**、**Kiro**、**Oh My Pi** 与 **DeepSeek Harness**。
+HarnessKit 统一管理每个 Agent 的 **配置**、**记忆**、**规则**、**子 Agent** 与 **忽略**（Ignore）文件。目前支持 **13 个 Agent**：**Claude Code**、**Codex**、**Gemini CLI**、**Cursor**、**Antigravity**、**Copilot**、**Devin Desktop**、**OpenCode**、**Hermes**、**Kiro**、**Oh My Pi**、**DeepSeek Harness** 与 **Grok Build**。
 
 - **配置文件跟踪** —— 自动发现每个 Agent 的全局与项目级配置文件。添加项目目录或自定义路径后，HarnessKit 会将它们与全局配置一同纳入管理。
 - **Agent 专属面板** —— 每个 Agent 拥有独立页面，文件按类别组织，列出范围、路径、文件大小以及已安装扩展的概览。展开任意文件即可在应用内预览。
@@ -177,10 +178,11 @@ HarnessKit 提供独立命令行工具（`hk`），面向偏好终端的工作
 
 ```shell
 $ hk status
-  Agents        12 detected (claude · codex · gemini · cursor · antigravity · copilot · windsurf · opencode · hermes · kiro · omp · dsh)
+  Agents        13 detected (claude · codex · gemini · cursor · antigravity · copilot · windsurf · opencode · hermes · kiro · omp · dsh · grok)
   Extensions    136 total (124 skills · 2 mcp · 8 plugins · 1 hooks · 1 clis)
 
 $ hk list --kind skill --agent claude    # 按类型与 Agent 筛选
+$ hk list --kind mcp --agent grok        # Grok Build MCP servers
 $ hk audit                               # 带信任评分的安全审计
 $ hk enable my-skill                     # 按名称启用
 $ hk disable --pack owner/repo           # 按来源批量禁用

crates/hk-core/Cargo.toml

@@ -14,6 +14,10 @@ rusqlite = { version = "0.32", features = ["bundled"] }
 regex = "1"
 toml = "0.8"
 dirs = "6"
+# Same canonicalizer as grok-build (its clippy.toml bans std::fs::canonicalize):
+# Grok plugin ids hash the dunce-canonical root, and \\?\ verbatim Windows
+# paths would hash to a different id. Already in the lockfile via tauri.
+dunce = "1"
 glob = "0.3"
 walkdir = "2"
 jsonc-parser = { version = "0.32", features = ["serde", "serde_json", "cst"] }