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/id/common.json

@@ -513,13 +513,51 @@
       "needsConfig": "Perlu konfigurasi",
       "connect": "Hubungkan",
       "reconnect": "Hubungkan ulang",
-      "feishuQrAlt": "Kode QR koneksi Feishu",
-      "feishuScanTitle": "Pindai dengan Feishu",
-      "feishuScanDescription": "Gunakan Feishu atau Lark di ponsel untuk memindai kode ini. nanobot akan menyelesaikan setup secara otomatis setelah otorisasi.",
-      "feishuWaiting": "Menunggu otorisasi...",
-      "feishuConnected": "Feishu sudah terhubung.",
-      "feishuConnectStopped": "Koneksi dihentikan.",
-      "feishuConnecting": "Menghubungkan..."
+      "advanced": "Lanjutan",
+      "checkAndEnable": "Periksa dan aktifkan",
+      "checkConnection": "Periksa koneksi",
+      "checkedAndEnabled": "Sudah diperiksa dan diaktifkan.",
+      "checking": "Memeriksa...",
+      "checkOnly": "Periksa saja",
+      "commandCopied": "Perintah disalin.",
+      "commandCopyFailed": "Tidak dapat menyalin perintah.",
+      "configuredInstances": "{{count}} instans dikonfigurasi",
+      "connectPreview": "Langkah berikutnya adalah koneksi di browser. Untuk saat ini, jalankan perintah di bawah.",
+      "copyCommand": "Salin perintah",
+      "filterAll": "Semua",
+      "filterOff": "Nonaktif",
+      "filterOn": "Aktif",
+      "helperCopied": "{{name}} disalin.",
+      "helperCopyFailed": "Tidak dapat menyalin {{name}}.",
+      "hideSecret": "Sembunyikan rahasia",
+      "instanceConfigured": "Dikonfigurasi",
+      "instanceNeedsSetup": "Perlu penyiapan",
+      "runtimeFailed": "Gagal dimulai",
+      "runtimeStarting": "Memulai",
+      "runtimeStopped": "Tidak berjalan",
+      "managedByWebui": "Dikelola oleh WebUI",
+      "officialGuide": "Panduan resmi",
+      "optional": "Opsional",
+      "providerPreset": "Penyedia",
+      "requiredSetup": "Penyiapan wajib",
+      "savedSecret": "Tersimpan",
+      "savedSecretPlaceholder": "Rahasia tersimpan",
+      "savedSettings": "Pengaturan disimpan.",
+      "saveSettings": "Simpan pengaturan",
+      "selectChannel": "Lihat pengaturan {{name}}",
+      "setupSteps": "Langkah berikutnya",
+      "showSecret": "Tampilkan rahasia",
+      "toggleChannel": "Kanal {{name}}",
+      "toggleInstance": "Instans {{name}}",
+      "tryIt": "Coba",
+      "validationFailed": "Periksa penyiapan wajib sebelum mengaktifkan.",
+      "validation": {
+        "connected": "Terhubung",
+        "configured": "Dikonfigurasi manual",
+        "needs_setup": "Perlu penyiapan",
+        "invalid": "Tidak valid",
+        "unsupported": "Penyiapan manual"
+      }
     },
     "nanobotFeatures": {
       "enabled": "Aktif",