Release v0.3.11: position repo as Grok plugin with clearer install

Document plugin-first packaging (manifest, commands, skills, hooks) and
have install.sh build the CLI, install the tmux dashboard, and register
the plugin so clone-and-setup matches how the project is shipped.

commands/setup.md

@@ -4,22 +4,37 @@ description: Install grok-build-hud dashboard + same-window multi-line status
 
 # grok-build-hud setup
 
-One-time setup (from the plugin / repo root):
+本仓库是 **Grok 插件**（`plugin.json`）。完整体验 = 插件 + 同窗口 tmux 状态条。
+
+## 推荐：一键安装
+
+在插件 / 仓库根目录：
+
+```bash
+bash scripts/install.sh
+```
+
+会：编译 → `npm link` → `--install-dashboard` → `grok plugin install . --trust`。
+
+## 分步
 
 ```bash
 npm install && npm run build
-# Preferred: full same-window HUD (tmux multi-line strip)
+npm link
 node bin/grok-build-hud.js --install-dashboard
 node bin/grok-build-hud.js --theme auto
 node bin/grok-build-hud.js --preset full
+grok plugin install . --trust
+grok plugin enable grok-build-hud
 ```
 
-Or: `bash scripts/install.sh` / `npm run install-local`.
+或：`npm run install-local`（仅 CLI + dashboard，不含插件注册）。
 
 ## Start Grok with HUD (same Terminal tab)
 
 ```bash
-grok-hud-run
+grok
+# 兼容：grok-hud-run
 ```
 
 You should see **2–3 rows** at the bottom (context + usage bars), not a second window.
@@ -32,14 +47,9 @@ node bin/grok-build-hud.js --install-hooks
 
 Reload in Grok: `/hooks` then press `r`.
 
-Example annotation:
-
-```text
-[hud] ctx 30% 154k/500k │ turns 3 │ tools 78 │ live │ project
-```
-
 ## Verify
 
 ```bash
 grok-hud status
+grok plugin details grok-build-hud
 ```