refactor(channels): make built-in channels self-contained (#4908)

* refactor(channels): own setup and instance contracts

* refactor(channels): isolate management contracts

* refactor(channels): normalize activation contracts

* fix(channels): enforce management contracts

* refactor(channels): finish setup ownership migration

* fix(channels): harden management contracts

* fix(channels): enforce lazy loading and runtime ownership

* fix(feishu): make multi-instance startup idempotent

* fix(webui): render channel setup contracts cleanly

* fix(feishu): stop websocket clients cleanly

* fix(channels): enforce persistence and activation gates

* fix(channels): preserve global feature action scope

* fix(channels): apply defaults for single plugins

* fix(channels): enforce management contract boundaries

* refactor(feishu): remove identity helper indirection

* fix(channels): preserve management setup contracts

* refactor(channels): generalize instance settings UI

* refactor(channels): package channel plugins with web UI metadata

* refactor(channels): make built-ins self-contained packages

* test(channels): colocate tests with channel packages

* fix(dingtalk): use official brand icon

* feat(channels): colocate webui translations

* docs(channels): clarify plugin ownership

* test(exec): remove output wait race

* refactor(channels): unify plugin descriptors

* fix(channels): enforce descriptor-owned contracts

* refactor(channels): finish package-owned plugin setup

* refactor(channels): use repository-owned packages only

* fix(channels): self-describe dependencies and runtime state

* fix(channels): warn about legacy entry points

webui/src/i18n/locales/zh-TW/common.json

@@ -513,13 +513,51 @@
       "needsConfig": "需要設定",
       "connect": "連線",
       "reconnect": "重新連線",
-      "feishuQrAlt": "飛書連線 QR Code",
-      "feishuScanTitle": "使用飛書掃描",
-      "feishuScanDescription": "請使用手機上的飛書或 Lark 掃描此 QR Code。完成授權後，nanobot 會自動完成設定。",
-      "feishuWaiting": "正在等待授權…",
-      "feishuConnected": "飛書已連線。",
-      "feishuConnectStopped": "連線已停止。",
-      "feishuConnecting": "正在連線…"
+      "advanced": "進階",
+      "checkAndEnable": "檢查並啟用",
+      "checkConnection": "檢查連線",
+      "checkedAndEnabled": "已檢查並啟用。",
+      "checking": "正在檢查...",
+      "checkOnly": "僅檢查",
+      "commandCopied": "指令已複製。",
+      "commandCopyFailed": "無法複製指令。",
+      "configuredInstances": "已設定 {{count}} 個執行個體",
+      "connectPreview": "下一步將在瀏覽器內連線。目前請先執行下方指令。",
+      "copyCommand": "複製指令",
+      "filterAll": "全部",
+      "filterOff": "關閉",
+      "filterOn": "開啟",
+      "helperCopied": "已複製 {{name}}。",
+      "helperCopyFailed": "無法複製 {{name}}。",
+      "hideSecret": "隱藏密鑰",
+      "instanceConfigured": "已設定",
+      "instanceNeedsSetup": "需要設定",
+      "runtimeFailed": "啟動失敗",
+      "runtimeStarting": "正在啟動",
+      "runtimeStopped": "未執行",
+      "managedByWebui": "由 WebUI 管理",
+      "officialGuide": "官方指南",
+      "optional": "選填",
+      "providerPreset": "服務供應商",
+      "requiredSetup": "必要設定",
+      "savedSecret": "已儲存",
+      "savedSecretPlaceholder": "已儲存的密鑰",
+      "savedSettings": "設定已儲存。",
+      "saveSettings": "儲存設定",
+      "selectChannel": "檢視 {{name}} 設定",
+      "setupSteps": "後續步驟",
+      "showSecret": "顯示密鑰",
+      "toggleChannel": "{{name}} 渠道",
+      "toggleInstance": "{{name}} 執行個體",
+      "tryIt": "試試看",
+      "validationFailed": "啟用前請檢查必要設定。",
+      "validation": {
+        "connected": "已連線",
+        "configured": "手動設定",
+        "needs_setup": "需要設定",
+        "invalid": "無效",
+        "unsupported": "手動設定"
+      }
     },
     "nanobotFeatures": {
       "enabled": "已啟用",