fix(im): pin weixin sidecar sdk install

scripts/im/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "cccc-weixin-sidecar",
+  "private": true,
+  "type": "module",
+  "engines": {
+    "node": ">=22"
+  },
+  "dependencies": {
+    "weixin-agent-sdk": "0.4.0"
+  }
+}

scripts/im/weixin_sidecar.mjs

@@ -114,7 +114,7 @@ async function main() {
     });
     emit("error", {
       message:
-        "failed to import weixin-agent-sdk; install it first, e.g. npm install weixin-agent-sdk",
+        "failed to import weixin-agent-sdk; install scripts/im dependencies first, e.g. cd scripts/im && npm install",
     });
     process.exit(1);
   }

web/src/i18n/locales/en/settings.json

@@ -569,7 +569,7 @@
     "weixinAccountIdHint": "Optional; falls back to the first logged-in account managed by `weixin-agent-sdk`.",
     "weixinCommand": "Sidecar command (optional)",
     "weixinCommandHint": "Optional; overrides the default `node scripts/im/weixin_sidecar.mjs` launch command.",
-    "weixinPackageHint": "The host needs Node.js and the `weixin-agent-sdk` npm package. Complete WeChat login before first use.",
+    "weixinPackageHint": "The host needs Node.js. Run `cd scripts/im && npm install` first so the pinned `weixin-agent-sdk@0.4.0` dependency is installed before the first WeChat login.",
     "weixinLoginTitle": "Weixin Login",
     "weixinLoginStatus": "Login status",
     "weixinCurrentAccount": "Current account",

web/src/i18n/locales/ja/settings.json

@@ -569,7 +569,7 @@
     "weixinAccountIdHint": "任意です。空欄の場合は `weixin-agent-sdk` が管理する最初のログイン済みアカウントを使います。",
     "weixinCommand": "Sidecar コマンド（任意）",
     "weixinCommandHint": "任意です。既定の `node scripts/im/weixin_sidecar.mjs` 起動コマンドを上書きします。",
-    "weixinPackageHint": "ホスト側に Node.js と npm パッケージ `weixin-agent-sdk` が必要です。初回利用前に WeChat ログインを済ませてください。",
+    "weixinPackageHint": "ホスト側に Node.js が必要です。初回の WeChat ログイン前に、`scripts/im` で `npm install` を実行して固定済みの `weixin-agent-sdk@0.4.0` 依存関係を導入してください。",
     "weixinLoginTitle": "Weixin ログイン",
     "weixinLoginStatus": "ログイン状態",
     "weixinCurrentAccount": "現在のアカウント",

web/src/i18n/locales/zh/settings.json

@@ -569,7 +569,7 @@
     "weixinAccountIdHint": "可选；为空时使用 `weixin-agent-sdk` 的默认首个已登录账号。",
     "weixinCommand": "Sidecar 命令（可选）",
     "weixinCommandHint": "可选；覆盖默认的 `node scripts/im/weixin_sidecar.mjs` 启动命令。",
-    "weixinPackageHint": "宿主机需要 Node.js 和 npm 包 `weixin-agent-sdk`。首次使用前先完成微信登录。",
+    "weixinPackageHint": "宿主机需要 Node.js，并先在 `scripts/im` 下执行 `npm install` 安装已固定的 `weixin-agent-sdk@0.4.0` 依赖。首次使用前先完成微信登录。",
     "weixinLoginTitle": "微信登录",
     "weixinLoginStatus": "登录状态",
     "weixinCurrentAccount": "当前账号",