fix(skills): document plugin vs manual hook setup for strategic-compact (#2420)

The Hook Setup section told all users to wire
`node ~/.claude/scripts/hooks/suggest-compact.js` into settings.json.
That path only exists on manual `./install.sh` installs; for plugin
installs the hook is already registered by the plugin's hooks/hooks.json
(id `pre:edit-write:suggest-compact`, standard/strict profiles), so the
snippet fails silently and would double-register the hook.

- Add a plugin-install note (mirrors continuous-learning-v2 wording)
  and scope the snippet to manual installs — applied to the canonical
  skill, the .kiro mirror, and ja-JP/zh-CN/zh-TW/ko-KR translations
- ko-KR: also replace the settings.json snippet that used
  `${CLAUDE_PLUGIN_ROOT}`, which does not resolve in user settings.json

.kiro/skills/strategic-compact/SKILL.md

@@ -38,7 +38,9 @@ The `suggest-compact.js` script runs on PreToolUse (Edit/Write) and:
 
 ## Hook Setup
 
-Add to your `~/.claude/settings.json`:
+**Installed as a plugin?** No setup is needed. The plugin's `hooks/hooks.json` already registers `suggest-compact.js` (hook id `pre:edit-write:suggest-compact`, active in the `standard` and `strict` hook profiles). Do not copy the block below into `~/.claude/settings.json` — `~/.claude/scripts/` does not exist on plugin installs, and duplicating a plugin hook causes double execution.
+
+**If installed manually** (`./install.sh`), add to your `~/.claude/settings.json`:
 
 ```json
 {

docs/ja-JP/skills/strategic-compact/SKILL.md

@@ -29,7 +29,9 @@ description: 任意の自動コンパクションではなく、タスクフェ
 
 ## フック設定
 
-`~/.claude/settings.json`に追加：
+**プラグインとしてインストール済みの場合**：設定は不要です。プラグインの `hooks/hooks.json` が既に `suggest-compact.js` を登録しています（フック ID `pre:edit-write:suggest-compact`、`standard` と `strict` フックプロファイルで有効）。下のブロックを `~/.claude/settings.json` にコピーしないでください — プラグインインストールでは `~/.claude/scripts/` は存在せず、プラグインフックを重複させると二重実行になります。
+
+**手動インストール**（`./install.sh`）の場合、`~/.claude/settings.json` に追加：
 
 ```json
 {

docs/ko-KR/skills/strategic-compact/SKILL.md

@@ -38,21 +38,21 @@ origin: ECC
 
 ## Hook 설정
 
-`~/.claude/settings.json`에 추가합니다:
+**플러그인으로 설치한 경우**: 별도 설정이 필요 없습니다. 플러그인의 `hooks/hooks.json`이 이미 `suggest-compact.js`를 등록합니다(훅 ID `pre:edit-write:suggest-compact`, `standard` 및 `strict` 훅 프로파일에서 활성). 아래 블록을 `~/.claude/settings.json`에 복사하지 마세요 — 플러그인 설치에는 `~/.claude/scripts/`가 존재하지 않으며, 플러그인 훅을 중복하면 이중 실행이 발생합니다(`${CLAUDE_PLUGIN_ROOT}`는 사용자 `settings.json`에서 해석되지 않습니다).
+
+**수동 설치**(`./install.sh`)인 경우 `~/.claude/settings.json`에 추가합니다:
 
 ```json
 {
   "hooks": {
     "PreToolUse": [
       {
-        "matcher": "Edit|Write",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hooks/run-with-flags.js\" \"pre:edit-write:suggest-compact\" \"scripts/hooks/suggest-compact.js\" \"standard,strict\""
-          }
-        ],
-        "description": "Suggest manual compaction at logical intervals"
+        "matcher": "Edit",
+        "hooks": [{ "type": "command", "command": "node ~/.claude/scripts/hooks/suggest-compact.js" }]
+      },
+      {
+        "matcher": "Write",
+        "hooks": [{ "type": "command", "command": "node ~/.claude/scripts/hooks/suggest-compact.js" }]
       }
     ]
   }

docs/zh-CN/skills/strategic-compact/SKILL.md

@@ -40,7 +40,9 @@ origin: ECC
 
 ## 钩子设置
 
-添加到你的 `~/.claude/settings.json`：
+**作为插件安装？** 无需任何设置。插件的 `hooks/hooks.json` 已经注册了 `suggest-compact.js`（钩子 ID `pre:edit-write:suggest-compact`，在 `standard` 和 `strict` 钩子配置档中生效）。不要把下面的代码块复制到 `~/.claude/settings.json` — 插件安装中不存在 `~/.claude/scripts/`，并且重复注册插件钩子会导致双重执行。
+
+**如果是手动安装**（`./install.sh`），添加到你的 `~/.claude/settings.json`：
 
 ```json
 {

docs/zh-TW/skills/strategic-compact/SKILL.md

@@ -29,7 +29,9 @@ description: Suggests manual context compaction at logical intervals to preserve
 
 ## Hook 設定
 
-新增到你的 `~/.claude/settings.json`：
+**以外掛安裝？** 無需任何設定。外掛的 `hooks/hooks.json` 已經註冊了 `suggest-compact.js`（Hook ID `pre:edit-write:suggest-compact`，在 `standard` 與 `strict` hook 設定檔中生效）。請勿將下方區塊複製到 `~/.claude/settings.json` — 外掛安裝中不存在 `~/.claude/scripts/`，且重複註冊外掛 hook 會導致重複執行。
+
+**如果是手動安裝**（`./install.sh`），新增到你的 `~/.claude/settings.json`：
 
 ```json
 {

skills/strategic-compact/SKILL.md

@@ -40,7 +40,9 @@ Tool count alone is a weak proxy for window pressure: a few large file reads or
 
 ## Hook Setup
 
-Add to your `~/.claude/settings.json`:
+**Installed as a plugin?** No setup is needed. The plugin's `hooks/hooks.json` already registers `suggest-compact.js` (hook id `pre:edit-write:suggest-compact`, active in the `standard` and `strict` hook profiles). Do not copy the block below into `~/.claude/settings.json` — `~/.claude/scripts/` does not exist on plugin installs, and duplicating a plugin hook causes double execution.
+
+**If installed manually** (`./install.sh`), add to your `~/.claude/settings.json`:
 
 ```json
 {