diff --git a/packages/platform-objects/scripts/i18n-extract.config.ts b/packages/platform-objects/scripts/i18n-extract.config.ts
index 1da213c79..31443a411 100644
--- a/packages/platform-objects/scripts/i18n-extract.config.ts
+++ b/packages/platform-objects/scripts/i18n-extract.config.ts
@@ -57,13 +57,14 @@ import {
 // bundles keep working until then.
 
 // ── Audit ─────────────────────────────────────────────────────────────────
+// sys_audit_log / sys_activity / sys_comment moved to @objectstack/plugin-audit
+// and sys_presence to @objectstack/service-realtime (ADR-0029 K2 / D8). Their
+// i18n extraction now lives in those packages; the already-generated bundles
+// here keep working until the next regeneration. sys_attachment stays here
+// pending the storage-domain decomposition (it belongs with service-storage).
 import {
-  SysAuditLog,
-  SysPresence,
-  SysActivity,
-  SysComment,
-  SysAttachment,
   SysNotification,
+  SysAttachment,
   SysEmail,
   SysEmailTemplate,
   SysSavedReport,
@@ -144,13 +145,11 @@ export default defineStack({
     // Security: RBAC moved to @objectstack/plugin-security, sharing to
     // @objectstack/plugin-sharing (ADR-0029 K2 / D8).
 
-    // Audit
-    SysAuditLog,
-    SysPresence,
-    SysActivity,
-    SysComment,
-    SysAttachment,
+    // Audit (sys_audit_log / sys_activity / sys_comment moved to
+    // @objectstack/plugin-audit; sys_presence to @objectstack/service-realtime;
+    // sys_attachment stays pending storage-domain decomposition)
     SysNotification,
+    SysAttachment,
     SysEmail,
     SysEmailTemplate,
     SysSavedReport,
diff --git a/packages/platform-objects/src/apps/setup-nav.contributions.ts b/packages/platform-objects/src/apps/setup-nav.contributions.ts
index 85f3d4130..b1a2c3e55 100644
--- a/packages/platform-objects/src/apps/setup-nav.contributions.ts
+++ b/packages/platform-objects/src/apps/setup-nav.contributions.ts
@@ -92,8 +92,9 @@ export const SETUP_NAV_CONTRIBUTIONS: NavigationContribution[] = [
     group: 'group_diagnostics',
     priority: BASE_PRIORITY,
     items: [
+      // Audit Logs (sys_audit_log) is contributed by @objectstack/plugin-audit
+      // which now owns it (ADR-0029 K2).
       { id: 'nav_sessions', type: 'object', label: 'Sessions', objectName: 'sys_session', icon: 'monitor' },
-      { id: 'nav_audit_logs', type: 'object', label: 'Audit Logs', objectName: 'sys_audit_log', icon: 'scroll-text' },
       { id: 'nav_notifications', type: 'object', label: 'Notification Events', objectName: 'sys_notification', viewName: 'recent', icon: 'bell', requiresObject: 'sys_notification' },
     ],
   },
diff --git a/packages/platform-objects/src/audit/index.ts b/packages/platform-objects/src/audit/index.ts
index d794cfb50..dccdb30dc 100644
--- a/packages/platform-objects/src/audit/index.ts
+++ b/packages/platform-objects/src/audit/index.ts
@@ -4,12 +4,13 @@
  * platform-objects/audit — Audit & Realtime Platform Objects
  */
 
-export { SysAuditLog } from './sys-audit-log.object.js';
-export { SysPresence } from './sys-presence.object.js';
-export { SysActivity } from './sys-activity.object.js';
-export { SysComment } from './sys-comment.object.js';
-export { SysAttachment } from './sys-attachment.object.js';
+// sys_audit_log / sys_activity / sys_comment moved to @objectstack/plugin-audit
+// and sys_presence to @objectstack/service-realtime (ADR-0029 K2).
+// sys_notification stays here pending ADR-0030 messaging rework; sys_attachment
+// stays here pending the storage-domain decomposition (it belongs with
+// @objectstack/service-storage's sys_file, not the audit plugin).
 export { SysNotification } from './sys-notification.object.js';
+export { SysAttachment } from './sys-attachment.object.js';
 export { SysEmail } from './sys-email.object.js';
 export { SysEmailTemplate } from './sys-email-template.object.js';
 export { SysSavedReport } from './sys-saved-report.object.js';
diff --git a/packages/platform-objects/src/platform-objects.test.ts b/packages/platform-objects/src/platform-objects.test.ts
index afb96fd32..e8f64876f 100644
--- a/packages/platform-objects/src/platform-objects.test.ts
+++ b/packages/platform-objects/src/platform-objects.test.ts
@@ -19,7 +19,9 @@ import {
 // RBAC objects (SysRole/SysPermissionSet/… + defaultPermissionSets) moved to
 // @objectstack/plugin-security and the sharing objects to
 // @objectstack/plugin-sharing per ADR-0029 K2 — see their packages' tests.
-import { SysAuditLog, SysPresence } from './audit/index.js';
+// sys_audit_log / sys_activity / sys_comment / sys_attachment moved to
+// @objectstack/plugin-audit and sys_presence to @objectstack/service-realtime
+// per ADR-0029 K2 — see their packages' tests.
 // sys_webhook moved to @objectstack/plugin-webhooks per ADR-0029 (K2.a).
 import {
   SysMetadata,
@@ -42,8 +44,6 @@ const systemObjects = [
   ['SysApiKey', SysApiKey, 'sys_api_key'],
   ['SysTwoFactor', SysTwoFactor, 'sys_two_factor'],
   ['SysUserPreference', SysUserPreference, 'sys_user_preference'],
-  ['SysAuditLog', SysAuditLog, 'sys_audit_log'],
-  ['SysPresence', SysPresence, 'sys_presence'],
   ['SysMetadata', SysMetadata, 'sys_metadata'],
   ['SysMetadataHistoryObject', SysMetadataHistoryObject, 'sys_metadata_history'],
   ['SysSetting', SysSetting, 'sys_setting'],
diff --git a/packages/plugins/plugin-audit/scripts/i18n-extract.config.ts b/packages/plugins/plugin-audit/scripts/i18n-extract.config.ts
new file mode 100644
index 000000000..dd3186edf
--- /dev/null
+++ b/packages/plugins/plugin-audit/scripts/i18n-extract.config.ts
@@ -0,0 +1,33 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Build-time only config for `os i18n extract` (ADR-0029 D8). Not deployed.
+ * The plugin owns the i18n extraction for the objects it owns; the
+ * `translations` baseline is this plugin's OWN generated bundles so re-running
+ * `--merge` preserves every hand-translated string. (Initial zh-CN/ja-JP/es-ES
+ * strings were seeded from @objectstack/platform-objects.)
+ *
+ *   os i18n extract packages/plugins/plugin-audit/scripts/i18n-extract.config.ts \
+ *     --locales=zh-CN,ja-JP,es-ES --fill=default --objects-only \
+ *     --out=packages/plugins/plugin-audit/src/translations
+ */
+
+import { defineStack } from '@objectstack/spec';
+import { SysAuditLog } from '../src/objects/sys-audit-log.object.js';
+import { SysActivity } from '../src/objects/sys-activity.object.js';
+import { SysComment } from '../src/objects/sys-comment.object.js';
+import { enObjects } from '../src/translations/en.objects.generated.js';
+import { zhCNObjects } from '../src/translations/zh-CN.objects.generated.js';
+import { jaJPObjects } from '../src/translations/ja-JP.objects.generated.js';
+import { esESObjects } from '../src/translations/es-ES.objects.generated.js';
+
+export default defineStack({
+  name: 'plugin-audit-i18n-extract',
+  objects: [SysAuditLog, SysActivity, SysComment] as any,
+  translations: [
+    { en: { objects: enObjects } },
+    { 'zh-CN': { objects: zhCNObjects } },
+    { 'ja-JP': { objects: jaJPObjects } },
+    { 'es-ES': { objects: esESObjects } },
+  ],
+});
diff --git a/packages/plugins/plugin-audit/src/audit-plugin.ts b/packages/plugins/plugin-audit/src/audit-plugin.ts
index be66b5c6c..d2a942ff7 100644
--- a/packages/plugins/plugin-audit/src/audit-plugin.ts
+++ b/packages/plugins/plugin-audit/src/audit-plugin.ts
@@ -2,7 +2,13 @@
 
 import type { Plugin, PluginContext } from '@objectstack/core';
 import type { IDataEngine } from '@objectstack/spec/contracts';
-import { SysAuditLog, SysActivity, SysComment, SysAttachment, SysNotification } from '@objectstack/platform-objects/audit';
+import { SysAuditLog, SysActivity, SysComment } from './objects/index.js';
+// Registered here but still owned by platform-objects (the plugin contributes
+// them to the kernel without owning the definition yet):
+//   - sys_notification — reworked by ADR-0030 messaging (notification→event).
+//   - sys_attachment    — a file↔record link belonging with service-storage's
+//     sys_file; moves in the storage-domain decomposition, not this audit move.
+import { SysNotification, SysAttachment } from '@objectstack/platform-objects/audit';
 import { installAuditWriters, type MessagingEmitSurface } from './audit-writers.js';
 
 /**
@@ -32,8 +38,36 @@ export class AuditPlugin implements Plugin {
       defaultDatasource: 'cloud',
       namespace: 'sys',
       objects: [SysAuditLog, SysActivity, SysComment, SysAttachment, SysNotification],
+      // ADR-0029 D7 — contribute the Audit Logs entry into the Setup app's
+      // `group_diagnostics` slot. The plugin owns sys_audit_log (K2).
+      navigationContributions: [
+        {
+          app: 'setup',
+          group: 'group_diagnostics',
+          priority: 100,
+          items: [
+            { id: 'nav_audit_logs', type: 'object', label: 'Audit Logs', objectName: 'sys_audit_log', icon: 'scroll-text' },
+          ],
+        },
+      ],
     });
 
+    // ADR-0029 D8 — contribute this plugin's object translations to the i18n
+    // service on kernel:ready (the i18n plugin may register after this one).
+    if (typeof (ctx as any).hook === 'function') {
+      (ctx as any).hook('kernel:ready', async () => {
+        try {
+          const i18n = ctx.getService<any>('i18n');
+          if (i18n && typeof i18n.loadTranslations === 'function') {
+            const { AuditTranslations } = await import('./translations/index.js');
+            for (const [locale, data] of Object.entries(AuditTranslations)) {
+              i18n.loadTranslations(locale, data as Record<string, unknown>);
+            }
+          }
+        } catch { /* i18n optional */ }
+      });
+    }
+
     ctx.logger.info('Audit Plugin initialized');
   }
 
diff --git a/packages/plugins/plugin-audit/src/objects/index.ts b/packages/plugins/plugin-audit/src/objects/index.ts
new file mode 100644
index 000000000..c5a7e10d8
--- /dev/null
+++ b/packages/plugins/plugin-audit/src/objects/index.ts
@@ -0,0 +1,18 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Audit & collaboration objects owned by `@objectstack/plugin-audit`
+ * (ADR-0029 K2). Moved here from the `@objectstack/platform-objects` monolith
+ * so the plugin owns its data model + behavior — exactly the objects the audit
+ * writers produce/observe (sys_audit_log + sys_activity rows; sys_comment
+ * @mention hook).
+ *
+ * Intentionally NOT moved here:
+ *   - `sys_notification` — reworked by ADR-0030 messaging.
+ *   - `sys_attachment` — a file↔record link belonging with service-storage's
+ *     sys_file; stays in platform-objects pending the storage-domain move.
+ */
+
+export { SysAuditLog } from './sys-audit-log.object.js';
+export { SysActivity } from './sys-activity.object.js';
+export { SysComment } from './sys-comment.object.js';
diff --git a/packages/plugins/plugin-audit/src/objects/objects.test.ts b/packages/plugins/plugin-audit/src/objects/objects.test.ts
new file mode 100644
index 000000000..a22228e29
--- /dev/null
+++ b/packages/plugins/plugin-audit/src/objects/objects.test.ts
@@ -0,0 +1,36 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+import { describe, it, expect } from 'vitest';
+import { StorageNameMapping } from '@objectstack/spec/system';
+import { SysAuditLog, SysActivity, SysComment } from './index.js';
+
+/**
+ * Canonical-identity coverage for the audit/collaboration objects this plugin
+ * owns after the ADR-0029 K2 move out of @objectstack/platform-objects. Locks
+ * in the short names, system flag, and the storage-name resolution so a future
+ * rename can't silently change the physical table.
+ */
+const ownedObjects = [
+  ['SysAuditLog', SysAuditLog, 'sys_audit_log'],
+  ['SysActivity', SysActivity, 'sys_activity'],
+  ['SysComment', SysComment, 'sys_comment'],
+] as const;
+
+describe('@objectstack/plugin-audit objects', () => {
+  it.each(ownedObjects)('%s uses a canonical sys_ short name', (_name, object, name) => {
+    expect(object.name).toBe(name);
+  });
+
+  it.each(ownedObjects)('%s resolves to the same physical table name', (_name, object, name) => {
+    expect(StorageNameMapping.resolveTableName(object)).toBe(name);
+  });
+
+  it.each(ownedObjects)('%s is marked as a system object', (_name, object) => {
+    expect(object.isSystem).toBe(true);
+  });
+
+  it.each(ownedObjects)('%s does not carry deprecated storage identity fields', (_name, object) => {
+    expect((object as any).namespace).toBeUndefined();
+    expect((object as any).tableName).toBeUndefined();
+  });
+});
diff --git a/packages/platform-objects/src/audit/sys-activity.object.ts b/packages/plugins/plugin-audit/src/objects/sys-activity.object.ts
similarity index 100%
rename from packages/platform-objects/src/audit/sys-activity.object.ts
rename to packages/plugins/plugin-audit/src/objects/sys-activity.object.ts
diff --git a/packages/platform-objects/src/audit/sys-audit-log.object.ts b/packages/plugins/plugin-audit/src/objects/sys-audit-log.object.ts
similarity index 100%
rename from packages/platform-objects/src/audit/sys-audit-log.object.ts
rename to packages/plugins/plugin-audit/src/objects/sys-audit-log.object.ts
diff --git a/packages/platform-objects/src/audit/sys-comment.object.ts b/packages/plugins/plugin-audit/src/objects/sys-comment.object.ts
similarity index 100%
rename from packages/platform-objects/src/audit/sys-comment.object.ts
rename to packages/plugins/plugin-audit/src/objects/sys-comment.object.ts
diff --git a/packages/plugins/plugin-audit/src/translations/en.objects.generated.ts b/packages/plugins/plugin-audit/src/translations/en.objects.generated.ts
new file mode 100644
index 000000000..b98ccc62a
--- /dev/null
+++ b/packages/plugins/plugin-audit/src/translations/en.objects.generated.ts
@@ -0,0 +1,219 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'en'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const enObjects: NonNullable<TranslationData['objects']> = {
+  sys_audit_log: {
+    label: "Audit Log",
+    pluralLabel: "Audit Logs",
+    description: "Immutable audit trail for platform events",
+    fields: {
+      created_at: {
+        label: "Timestamp"
+      },
+      action: {
+        label: "Action",
+        help: "Action type (snake_case)",
+        options: {
+          create: "create",
+          update: "update",
+          delete: "delete",
+          restore: "restore",
+          login: "login",
+          logout: "logout",
+          permission_change: "permission_change",
+          config_change: "config_change",
+          export: "export",
+          import: "import"
+        }
+      },
+      user_id: {
+        label: "Actor",
+        help: "User who performed the action (null for system actions)"
+      },
+      object_name: {
+        label: "Object",
+        help: "Target object (e.g. sys_user, project_task)"
+      },
+      record_id: {
+        label: "Record ID",
+        help: "ID of the affected record"
+      },
+      old_value: {
+        label: "Old Value",
+        help: "JSON-serialized previous state"
+      },
+      new_value: {
+        label: "New Value",
+        help: "JSON-serialized new state"
+      },
+      ip_address: {
+        label: "IP Address"
+      },
+      user_agent: {
+        label: "User Agent"
+      },
+      tenant_id: {
+        label: "Tenant",
+        help: "Tenant context for multi-tenant isolation"
+      },
+      metadata: {
+        label: "Metadata",
+        help: "JSON-serialized additional context"
+      },
+      id: {
+        label: "Audit Log ID"
+      }
+    },
+    _views: {
+      recent: {
+        label: "Recent"
+      },
+      writes_only: {
+        label: "Writes"
+      },
+      auth_events: {
+        label: "Auth"
+      },
+      config_changes: {
+        label: "Config"
+      },
+      all_events: {
+        label: "All"
+      }
+    }
+  },
+  sys_activity: {
+    label: "Activity",
+    pluralLabel: "Activities",
+    description: "Recent activity stream entries (lightweight, denormalized)",
+    fields: {
+      id: {
+        label: "Activity ID"
+      },
+      timestamp: {
+        label: "Timestamp"
+      },
+      type: {
+        label: "Type",
+        options: {
+          created: "created",
+          updated: "updated",
+          deleted: "deleted",
+          commented: "commented",
+          mentioned: "mentioned",
+          shared: "shared",
+          assigned: "assigned",
+          completed: "completed",
+          login: "login",
+          logout: "logout",
+          system: "system"
+        }
+      },
+      summary: {
+        label: "Summary",
+        help: "Human-readable one-line summary"
+      },
+      actor_id: {
+        label: "Actor"
+      },
+      actor_name: {
+        label: "Actor Name"
+      },
+      actor_avatar_url: {
+        label: "Actor Avatar"
+      },
+      object_name: {
+        label: "Object",
+        help: "Target object short name (e.g. account, sys_user)"
+      },
+      record_id: {
+        label: "Record ID"
+      },
+      record_label: {
+        label: "Record Label",
+        help: "Display label of the target record at write time"
+      },
+      url: {
+        label: "URL",
+        help: "Optional deep-link to the activity target"
+      },
+      environment_id: {
+        label: "Project",
+        help: "Environment context (multi-environment deployments)"
+      },
+      metadata: {
+        label: "Metadata",
+        help: "JSON-serialized additional context"
+      }
+    }
+  },
+  sys_comment: {
+    label: "Comment",
+    pluralLabel: "Comments",
+    description: "Threaded comments attached to records via thread_id",
+    fields: {
+      id: {
+        label: "Comment ID"
+      },
+      thread_id: {
+        label: "Thread",
+        help: "Thread identifier — conventionally `{object}:{record_id}` (e.g. `sys_user:abc123`)"
+      },
+      parent_id: {
+        label: "Parent Comment",
+        help: "Optional parent comment for nested replies"
+      },
+      reply_count: {
+        label: "Reply Count"
+      },
+      author_id: {
+        label: "Author"
+      },
+      author_name: {
+        label: "Author Name"
+      },
+      author_avatar_url: {
+        label: "Author Avatar"
+      },
+      body: {
+        label: "Body",
+        help: "Comment text (Markdown supported)"
+      },
+      mentions: {
+        label: "Mentions",
+        help: "JSON array of @mention objects"
+      },
+      reactions: {
+        label: "Reactions",
+        help: "JSON array of emoji reaction objects"
+      },
+      is_edited: {
+        label: "Edited"
+      },
+      edited_at: {
+        label: "Edited At"
+      },
+      visibility: {
+        label: "Visibility",
+        options: {
+          public: "public",
+          internal: "internal",
+          private: "private"
+        }
+      },
+      created_at: {
+        label: "Created At"
+      },
+      updated_at: {
+        label: "Updated At"
+      }
+    }
+  }
+};
diff --git a/packages/plugins/plugin-audit/src/translations/es-ES.objects.generated.ts b/packages/plugins/plugin-audit/src/translations/es-ES.objects.generated.ts
new file mode 100644
index 000000000..a7f0e0d5b
--- /dev/null
+++ b/packages/plugins/plugin-audit/src/translations/es-ES.objects.generated.ts
@@ -0,0 +1,219 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'es-ES'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const esESObjects: NonNullable<TranslationData['objects']> = {
+  sys_audit_log: {
+    label: "Registro de auditoría",
+    pluralLabel: "Registros de auditoría",
+    description: "Registro de auditoría inmutable para eventos de la plataforma",
+    fields: {
+      created_at: {
+        label: "Marca temporal"
+      },
+      action: {
+        label: "Acción",
+        help: "Tipo de acción (snake_case).",
+        options: {
+          create: "Crear",
+          update: "Actualizar",
+          delete: "Eliminar",
+          restore: "Restaurar",
+          login: "Inicio de sesión",
+          logout: "Cierre de sesión",
+          permission_change: "Cambio de permisos",
+          config_change: "Cambio de configuración",
+          export: "Exportar",
+          import: "Importar"
+        }
+      },
+      user_id: {
+        label: "Actor",
+        help: "Usuario que realizó la acción (null para acciones del sistema)."
+      },
+      object_name: {
+        label: "Objeto",
+        help: "Objeto de destino (p. ej. sys_user, project_task)."
+      },
+      record_id: {
+        label: "ID de registro",
+        help: "ID del registro afectado."
+      },
+      old_value: {
+        label: "Valor anterior",
+        help: "Estado anterior serializado en JSON."
+      },
+      new_value: {
+        label: "Valor nuevo",
+        help: "Estado nuevo serializado en JSON."
+      },
+      ip_address: {
+        label: "Dirección IP"
+      },
+      user_agent: {
+        label: "Agente de usuario"
+      },
+      tenant_id: {
+        label: "Inquilino",
+        help: "Contexto del tenant para el aislamiento multi-tenant."
+      },
+      metadata: {
+        label: "Metadatos",
+        help: "Contexto adicional serializado en JSON."
+      },
+      id: {
+        label: "ID de registro de auditoría"
+      }
+    },
+    _views: {
+      recent: {
+        label: "Recientes"
+      },
+      writes_only: {
+        label: "Escrituras"
+      },
+      auth_events: {
+        label: "Autenticación"
+      },
+      config_changes: {
+        label: "Configuración"
+      },
+      all_events: {
+        label: "Todos"
+      }
+    }
+  },
+  sys_activity: {
+    label: "Actividad",
+    pluralLabel: "Actividades",
+    description: "Entradas recientes del flujo de actividad (ligeras y desnormalizadas).",
+    fields: {
+      id: {
+        label: "ID de actividad"
+      },
+      timestamp: {
+        label: "Marca temporal"
+      },
+      type: {
+        label: "Tipo",
+        options: {
+          created: "Creado",
+          updated: "Actualizado",
+          deleted: "Eliminado",
+          commented: "Comentado",
+          mentioned: "Mencionado",
+          shared: "Compartido",
+          assigned: "Asignado",
+          completed: "Completado",
+          login: "Inicio de sesión",
+          logout: "Cierre de sesión",
+          system: "Sistema"
+        }
+      },
+      summary: {
+        label: "Resumen",
+        help: "Resumen legible de una línea."
+      },
+      actor_id: {
+        label: "Actor"
+      },
+      actor_name: {
+        label: "Nombre del actor"
+      },
+      actor_avatar_url: {
+        label: "Avatar del actor"
+      },
+      object_name: {
+        label: "Objeto",
+        help: "Nombre corto del objeto de destino (p. ej. account, sys_user)."
+      },
+      record_id: {
+        label: "ID de registro"
+      },
+      record_label: {
+        label: "Nombre visible del registro",
+        help: "Nombre visible del registro de destino en el momento de escritura."
+      },
+      url: {
+        label: "URL",
+        help: "Enlace profundo opcional al destino de la actividad."
+      },
+      environment_id: {
+        label: "Proyecto",
+        help: "Contexto del proyecto (implementaciones multiproyecto)."
+      },
+      metadata: {
+        label: "Metadatos",
+        help: "Contexto adicional serializado en JSON."
+      }
+    }
+  },
+  sys_comment: {
+    label: "Comentario",
+    pluralLabel: "Comentarios",
+    description: "Comentarios en hilo adjuntos a registros mediante thread_id.",
+    fields: {
+      id: {
+        label: "ID de comentario"
+      },
+      thread_id: {
+        label: "Hilo",
+        help: "Identificador del hilo; por convención `{object}:{record_id}` (p. ej. `sys_user:abc123`)."
+      },
+      parent_id: {
+        label: "Comentario principal",
+        help: "Comentario principal opcional para respuestas anidadas."
+      },
+      reply_count: {
+        label: "Número de respuestas"
+      },
+      author_id: {
+        label: "Autor"
+      },
+      author_name: {
+        label: "Nombre del autor"
+      },
+      author_avatar_url: {
+        label: "Avatar del autor"
+      },
+      body: {
+        label: "Contenido",
+        help: "Texto del comentario (compatible con Markdown)."
+      },
+      mentions: {
+        label: "Menciones",
+        help: "Matriz JSON de objetos @mention."
+      },
+      reactions: {
+        label: "Reacciones",
+        help: "Matriz JSON de objetos de reacción emoji."
+      },
+      is_edited: {
+        label: "Editado"
+      },
+      edited_at: {
+        label: "Editado el"
+      },
+      visibility: {
+        label: "Visibilidad",
+        options: {
+          public: "Público",
+          internal: "Interno",
+          private: "Privado"
+        }
+      },
+      created_at: {
+        label: "Creado el"
+      },
+      updated_at: {
+        label: "Actualizado el"
+      }
+    }
+  }
+};
diff --git a/packages/plugins/plugin-audit/src/translations/index.ts b/packages/plugins/plugin-audit/src/translations/index.ts
new file mode 100644
index 000000000..a90f97e45
--- /dev/null
+++ b/packages/plugins/plugin-audit/src/translations/index.ts
@@ -0,0 +1,24 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * AuditTranslations — i18n bundle owned by this plugin (ADR-0029 D8).
+ *
+ * Object label/field/view/action translations for the sys_* objects this
+ * plugin owns (sys_audit_log / sys_activity / sys_comment / sys_attachment).
+ * Loaded at runtime via the plugin's `kernel:ready` hook
+ * (`i18n.loadTranslations`). Regenerate with `os i18n extract` against
+ * `scripts/i18n-extract.config.ts`.
+ */
+
+import type { TranslationBundle } from '@objectstack/spec/system';
+import { enObjects } from './en.objects.generated.js';
+import { zhCNObjects } from './zh-CN.objects.generated.js';
+import { jaJPObjects } from './ja-JP.objects.generated.js';
+import { esESObjects } from './es-ES.objects.generated.js';
+
+export const AuditTranslations: TranslationBundle = {
+  en: { objects: enObjects },
+  'zh-CN': { objects: zhCNObjects },
+  'ja-JP': { objects: jaJPObjects },
+  'es-ES': { objects: esESObjects },
+};
diff --git a/packages/plugins/plugin-audit/src/translations/ja-JP.objects.generated.ts b/packages/plugins/plugin-audit/src/translations/ja-JP.objects.generated.ts
new file mode 100644
index 000000000..42d5ac7c4
--- /dev/null
+++ b/packages/plugins/plugin-audit/src/translations/ja-JP.objects.generated.ts
@@ -0,0 +1,219 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'ja-JP'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const jaJPObjects: NonNullable<TranslationData['objects']> = {
+  sys_audit_log: {
+    label: "監査ログ",
+    pluralLabel: "監査ログ",
+    description: "プラットフォームイベントの不変の監査証跡",
+    fields: {
+      created_at: {
+        label: "タイムスタンプ"
+      },
+      action: {
+        label: "アクション",
+        help: "アクションタイプ（snake_case）",
+        options: {
+          create: "作成",
+          update: "更新",
+          delete: "削除",
+          restore: "復元",
+          login: "ログイン",
+          logout: "ログアウト",
+          permission_change: "権限変更",
+          config_change: "構成変更",
+          export: "エクスポート",
+          import: "インポート"
+        }
+      },
+      user_id: {
+        label: "操作者",
+        help: "アクションを実行したユーザー（システム操作の場合は null）"
+      },
+      object_name: {
+        label: "オブジェクト",
+        help: "対象オブジェクト（例: sys_user、project_task）"
+      },
+      record_id: {
+        label: "レコード ID",
+        help: "影響を受けたレコードの ID"
+      },
+      old_value: {
+        label: "変更前の値",
+        help: "JSON シリアライズされた以前の状態"
+      },
+      new_value: {
+        label: "変更後の値",
+        help: "JSON シリアライズされた新しい状態"
+      },
+      ip_address: {
+        label: "IP アドレス"
+      },
+      user_agent: {
+        label: "ユーザーエージェント"
+      },
+      tenant_id: {
+        label: "テナント",
+        help: "マルチテナント分離のためのテナントコンテキスト"
+      },
+      metadata: {
+        label: "メタデータ",
+        help: "JSON シリアライズされた追加コンテキスト"
+      },
+      id: {
+        label: "監査ログ ID"
+      }
+    },
+    _views: {
+      recent: {
+        label: "最近"
+      },
+      writes_only: {
+        label: "書き込み"
+      },
+      auth_events: {
+        label: "認証"
+      },
+      config_changes: {
+        label: "構成変更"
+      },
+      all_events: {
+        label: "すべて"
+      }
+    }
+  },
+  sys_activity: {
+    label: "アクティビティ",
+    pluralLabel: "アクティビティ",
+    description: "最近のアクティビティストリームエントリ（軽量、非正規化）",
+    fields: {
+      id: {
+        label: "アクティビティ ID"
+      },
+      timestamp: {
+        label: "タイムスタンプ"
+      },
+      type: {
+        label: "タイプ",
+        options: {
+          created: "作成",
+          updated: "更新",
+          deleted: "削除",
+          commented: "コメント",
+          mentioned: "メンション",
+          shared: "共有",
+          assigned: "割り当て",
+          completed: "完了",
+          login: "ログイン",
+          logout: "ログアウト",
+          system: "システム"
+        }
+      },
+      summary: {
+        label: "サマリー",
+        help: "判別しやすい 1 行サマリー"
+      },
+      actor_id: {
+        label: "操作者"
+      },
+      actor_name: {
+        label: "操作者名"
+      },
+      actor_avatar_url: {
+        label: "操作者アバター"
+      },
+      object_name: {
+        label: "オブジェクト",
+        help: "対象オブジェクトの短い名前（例: account、sys_user）"
+      },
+      record_id: {
+        label: "レコード ID"
+      },
+      record_label: {
+        label: "レコード表示名",
+        help: "書き込み時点の対象レコードの表示名"
+      },
+      url: {
+        label: "URL",
+        help: "アクティビティターゲットへのオプションのディープリンク"
+      },
+      environment_id: {
+        label: "プロジェクト",
+        help: "プロジェクトコンテキスト（マルチプロジェクトデプロイメント）"
+      },
+      metadata: {
+        label: "メタデータ",
+        help: "JSON シリアライズされた追加コンテキスト"
+      }
+    }
+  },
+  sys_comment: {
+    label: "コメント",
+    pluralLabel: "コメント",
+    description: "thread_id を介してレコードに添付されたスレッドコメント",
+    fields: {
+      id: {
+        label: "コメント ID"
+      },
+      thread_id: {
+        label: "スレッド",
+        help: "スレッド識別子 — 通常は `{object}:{record_id}`（例: `sys_user:abc123`）"
+      },
+      parent_id: {
+        label: "親コメント",
+        help: "ネストした返信用のオプションの親コメント"
+      },
+      reply_count: {
+        label: "返信数"
+      },
+      author_id: {
+        label: "投稿者"
+      },
+      author_name: {
+        label: "投稿者名"
+      },
+      author_avatar_url: {
+        label: "投稿者アバター"
+      },
+      body: {
+        label: "本文",
+        help: "コメントテキスト（Markdown 対応）"
+      },
+      mentions: {
+        label: "メンション",
+        help: "@メンションオブジェクトの JSON 配列"
+      },
+      reactions: {
+        label: "リアクション",
+        help: "絵文字リアクションオブジェクトの JSON 配列"
+      },
+      is_edited: {
+        label: "編集済み"
+      },
+      edited_at: {
+        label: "編集日時"
+      },
+      visibility: {
+        label: "公開範囲",
+        options: {
+          public: "公開",
+          internal: "内部",
+          private: "非公開"
+        }
+      },
+      created_at: {
+        label: "作成日時"
+      },
+      updated_at: {
+        label: "更新日時"
+      }
+    }
+  }
+};
diff --git a/packages/plugins/plugin-audit/src/translations/zh-CN.objects.generated.ts b/packages/plugins/plugin-audit/src/translations/zh-CN.objects.generated.ts
new file mode 100644
index 000000000..5d23b04bd
--- /dev/null
+++ b/packages/plugins/plugin-audit/src/translations/zh-CN.objects.generated.ts
@@ -0,0 +1,219 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'zh-CN'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const zhCNObjects: NonNullable<TranslationData['objects']> = {
+  sys_audit_log: {
+    label: "审计日志",
+    pluralLabel: "审计日志",
+    description: "平台事件的不可变审计追踪",
+    fields: {
+      created_at: {
+        label: "时间戳"
+      },
+      action: {
+        label: "操作",
+        help: "操作类型（snake_case）",
+        options: {
+          create: "创建",
+          update: "更新",
+          delete: "删除",
+          restore: "恢复",
+          login: "登录",
+          logout: "登出",
+          permission_change: "权限变更",
+          config_change: "配置变更",
+          export: "导出",
+          import: "导入"
+        }
+      },
+      user_id: {
+        label: "执行人",
+        help: "执行该操作的用户（系统操作时为 null）"
+      },
+      object_name: {
+        label: "对象",
+        help: "目标对象（例如 sys_user、project_task）"
+      },
+      record_id: {
+        label: "记录 ID",
+        help: "受影响记录的 ID"
+      },
+      old_value: {
+        label: "旧值",
+        help: "旧状态的 JSON 序列化内容"
+      },
+      new_value: {
+        label: "新值",
+        help: "新状态的 JSON 序列化内容"
+      },
+      ip_address: {
+        label: "IP 地址"
+      },
+      user_agent: {
+        label: "用户代理"
+      },
+      tenant_id: {
+        label: "租户",
+        help: "用于多租户隔离的租户上下文"
+      },
+      metadata: {
+        label: "元数据",
+        help: "附加上下文的 JSON 序列化内容"
+      },
+      id: {
+        label: "审计日志 ID"
+      }
+    },
+    _views: {
+      recent: {
+        label: "最近"
+      },
+      writes_only: {
+        label: "写入"
+      },
+      auth_events: {
+        label: "认证"
+      },
+      config_changes: {
+        label: "配置"
+      },
+      all_events: {
+        label: "全部"
+      }
+    }
+  },
+  sys_activity: {
+    label: "活动",
+    pluralLabel: "活动",
+    description: "最近活动流条目（轻量、去规范化）",
+    fields: {
+      id: {
+        label: "活动 ID"
+      },
+      timestamp: {
+        label: "时间戳"
+      },
+      type: {
+        label: "类型",
+        options: {
+          created: "已创建",
+          updated: "已更新",
+          deleted: "已删除",
+          commented: "已评论",
+          mentioned: "被提及",
+          shared: "已共享",
+          assigned: "已分配",
+          completed: "已完成",
+          login: "登录",
+          logout: "登出",
+          system: "系统"
+        }
+      },
+      summary: {
+        label: "摘要",
+        help: "人类可读的单行摘要"
+      },
+      actor_id: {
+        label: "执行人"
+      },
+      actor_name: {
+        label: "执行人名称"
+      },
+      actor_avatar_url: {
+        label: "执行人头像"
+      },
+      object_name: {
+        label: "对象",
+        help: "目标对象短名称（例如 account、sys_user）"
+      },
+      record_id: {
+        label: "记录 ID"
+      },
+      record_label: {
+        label: "记录标签",
+        help: "写入时目标记录的显示标签"
+      },
+      url: {
+        label: "URL",
+        help: "指向活动目标的可选深度链接"
+      },
+      environment_id: {
+        label: "项目",
+        help: "项目上下文（多项目部署）"
+      },
+      metadata: {
+        label: "元数据",
+        help: "附加上下文的 JSON 序列化内容"
+      }
+    }
+  },
+  sys_comment: {
+    label: "评论",
+    pluralLabel: "评论",
+    description: "通过 thread_id 附加到记录的线程化评论",
+    fields: {
+      id: {
+        label: "评论 ID"
+      },
+      thread_id: {
+        label: "线程",
+        help: "线程标识——约定格式为 `{object}:{record_id}`（例如 `sys_user:abc123`）"
+      },
+      parent_id: {
+        label: "父评论",
+        help: "可选的父评论，用于嵌套回复"
+      },
+      reply_count: {
+        label: "回复数"
+      },
+      author_id: {
+        label: "作者"
+      },
+      author_name: {
+        label: "作者名称"
+      },
+      author_avatar_url: {
+        label: "作者头像"
+      },
+      body: {
+        label: "正文",
+        help: "评论文本（支持 Markdown）"
+      },
+      mentions: {
+        label: "提及",
+        help: "@mention 对象的 JSON 数组"
+      },
+      reactions: {
+        label: "回应",
+        help: "表情回应对象的 JSON 数组"
+      },
+      is_edited: {
+        label: "已编辑"
+      },
+      edited_at: {
+        label: "编辑时间"
+      },
+      visibility: {
+        label: "可见性",
+        options: {
+          public: "公开",
+          internal: "内部",
+          private: "私有"
+        }
+      },
+      created_at: {
+        label: "创建时间"
+      },
+      updated_at: {
+        label: "更新时间"
+      }
+    }
+  }
+};
diff --git a/packages/services/service-realtime/scripts/i18n-extract.config.ts b/packages/services/service-realtime/scripts/i18n-extract.config.ts
new file mode 100644
index 000000000..8c34095ef
--- /dev/null
+++ b/packages/services/service-realtime/scripts/i18n-extract.config.ts
@@ -0,0 +1,31 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Build-time only config for `os i18n extract` (ADR-0029 D8). Not deployed.
+ * The plugin owns the i18n extraction for the objects it owns; the
+ * `translations` baseline is this plugin's OWN generated bundles so re-running
+ * `--merge` preserves every hand-translated string. (Initial zh-CN/ja-JP/es-ES
+ * strings were seeded from @objectstack/platform-objects.)
+ *
+ *   os i18n extract packages/services/service-realtime/scripts/i18n-extract.config.ts \
+ *     --locales=zh-CN,ja-JP,es-ES --fill=default --objects-only \
+ *     --out=packages/services/service-realtime/src/translations
+ */
+
+import { defineStack } from '@objectstack/spec';
+import { SysPresence } from '../src/objects/sys-presence.object.js';
+import { enObjects } from '../src/translations/en.objects.generated.js';
+import { zhCNObjects } from '../src/translations/zh-CN.objects.generated.js';
+import { jaJPObjects } from '../src/translations/ja-JP.objects.generated.js';
+import { esESObjects } from '../src/translations/es-ES.objects.generated.js';
+
+export default defineStack({
+  name: 'service-realtime-i18n-extract',
+  objects: [SysPresence] as any,
+  translations: [
+    { en: { objects: enObjects } },
+    { 'zh-CN': { objects: zhCNObjects } },
+    { 'ja-JP': { objects: jaJPObjects } },
+    { 'es-ES': { objects: esESObjects } },
+  ],
+});
diff --git a/packages/services/service-realtime/src/objects/index.ts b/packages/services/service-realtime/src/objects/index.ts
new file mode 100644
index 000000000..6ad7e8118
--- /dev/null
+++ b/packages/services/service-realtime/src/objects/index.ts
@@ -0,0 +1,8 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Realtime objects owned by `@objectstack/service-realtime` (ADR-0029 K2).
+ * `sys_presence` moved here from `@objectstack/platform-objects`.
+ */
+
+export { SysPresence } from './sys-presence.object.js';
diff --git a/packages/services/service-realtime/src/objects/sys-presence.object.test.ts b/packages/services/service-realtime/src/objects/sys-presence.object.test.ts
index 696452b19..029327f74 100644
--- a/packages/services/service-realtime/src/objects/sys-presence.object.test.ts
+++ b/packages/services/service-realtime/src/objects/sys-presence.object.test.ts
@@ -1,7 +1,7 @@
 // Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
 
 import { describe, it, expect } from 'vitest';
-import { SysPresence } from '@objectstack/platform-objects/audit';
+import { SysPresence } from './sys-presence.object.js';
 import { StorageNameMapping } from '@objectstack/spec/system';
 
 describe('SysPresence object definition', () => {
diff --git a/packages/platform-objects/src/audit/sys-presence.object.ts b/packages/services/service-realtime/src/objects/sys-presence.object.ts
similarity index 100%
rename from packages/platform-objects/src/audit/sys-presence.object.ts
rename to packages/services/service-realtime/src/objects/sys-presence.object.ts
diff --git a/packages/services/service-realtime/src/realtime-service-plugin.ts b/packages/services/service-realtime/src/realtime-service-plugin.ts
index fcb261287..ecbef1a3c 100644
--- a/packages/services/service-realtime/src/realtime-service-plugin.ts
+++ b/packages/services/service-realtime/src/realtime-service-plugin.ts
@@ -1,7 +1,7 @@
 // Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
 
 import type { Plugin, PluginContext } from '@objectstack/core';
-import { SysPresence } from '@objectstack/platform-objects/audit';
+import { SysPresence } from './objects/index.js';
 import { InMemoryRealtimeAdapter } from './in-memory-realtime-adapter.js';
 import type { InMemoryRealtimeAdapterOptions } from './in-memory-realtime-adapter.js';
 
@@ -63,6 +63,21 @@ export class RealtimeServicePlugin implements Plugin {
       objects: [SysPresence],
     });
 
+    // ADR-0029 D8 — contribute sys_presence translations on kernel:ready.
+    if (typeof (ctx as any).hook === 'function') {
+      (ctx as any).hook('kernel:ready', async () => {
+        try {
+          const i18n = ctx.getService<any>('i18n');
+          if (i18n && typeof i18n.loadTranslations === 'function') {
+            const { RealtimeTranslations } = await import('./translations/index.js');
+            for (const [locale, data] of Object.entries(RealtimeTranslations)) {
+              i18n.loadTranslations(locale, data as Record<string, unknown>);
+            }
+          }
+        } catch { /* i18n optional */ }
+      });
+    }
+
     ctx.logger.info('RealtimeServicePlugin: registered in-memory realtime adapter');
   }
 }
diff --git a/packages/services/service-realtime/src/translations/en.objects.generated.ts b/packages/services/service-realtime/src/translations/en.objects.generated.ts
new file mode 100644
index 000000000..2cf3bc77c
--- /dev/null
+++ b/packages/services/service-realtime/src/translations/en.objects.generated.ts
@@ -0,0 +1,65 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'en'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const enObjects: NonNullable<TranslationData['objects']> = {
+  sys_presence: {
+    label: "Presence",
+    pluralLabel: "Presences",
+    description: "Real-time user presence and activity tracking",
+    fields: {
+      id: {
+        label: "Presence ID"
+      },
+      created_at: {
+        label: "Created At"
+      },
+      updated_at: {
+        label: "Updated At"
+      },
+      user_id: {
+        label: "User"
+      },
+      session_id: {
+        label: "Session"
+      },
+      status: {
+        label: "Status",
+        options: {
+          online: "Online",
+          away: "Away",
+          busy: "Busy",
+          offline: "Offline"
+        }
+      },
+      last_seen: {
+        label: "Last Seen"
+      },
+      current_location: {
+        label: "Current Location"
+      },
+      device: {
+        label: "Device",
+        options: {
+          desktop: "Desktop",
+          mobile: "Mobile",
+          tablet: "Tablet",
+          other: "Other"
+        }
+      },
+      custom_status: {
+        label: "Custom Status"
+      },
+      metadata: {
+        label: "Metadata",
+        help: "Arbitrary JSON metadata associated with the presence state (matches PresenceStateSchema.metadata)."
+      }
+    }
+  }
+};
diff --git a/packages/services/service-realtime/src/translations/es-ES.objects.generated.ts b/packages/services/service-realtime/src/translations/es-ES.objects.generated.ts
new file mode 100644
index 000000000..0c41f603a
--- /dev/null
+++ b/packages/services/service-realtime/src/translations/es-ES.objects.generated.ts
@@ -0,0 +1,65 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'es-ES'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const esESObjects: NonNullable<TranslationData['objects']> = {
+  sys_presence: {
+    label: "Presencia",
+    pluralLabel: "Presencias",
+    description: "Seguimiento en tiempo real de presencia y actividad de usuarios",
+    fields: {
+      id: {
+        label: "ID de presencia"
+      },
+      created_at: {
+        label: "Creado el"
+      },
+      updated_at: {
+        label: "Actualizado el"
+      },
+      user_id: {
+        label: "Usuario"
+      },
+      session_id: {
+        label: "Sesión"
+      },
+      status: {
+        label: "Estado",
+        options: {
+          online: "En línea",
+          away: "Ausente",
+          busy: "Ocupado",
+          offline: "Desconectado"
+        }
+      },
+      last_seen: {
+        label: "Visto por última vez"
+      },
+      current_location: {
+        label: "Ubicación actual"
+      },
+      device: {
+        label: "Dispositivo",
+        options: {
+          desktop: "Escritorio",
+          mobile: "Móvil",
+          tablet: "Tableta",
+          other: "Otro"
+        }
+      },
+      custom_status: {
+        label: "Estado personalizado"
+      },
+      metadata: {
+        label: "Metadatos",
+        help: "Metadatos JSON arbitrarios asociados al estado de presencia (coincide con PresenceStateSchema.metadata)."
+      }
+    }
+  }
+};
diff --git a/packages/services/service-realtime/src/translations/index.ts b/packages/services/service-realtime/src/translations/index.ts
new file mode 100644
index 000000000..7e4624717
--- /dev/null
+++ b/packages/services/service-realtime/src/translations/index.ts
@@ -0,0 +1,24 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * RealtimeTranslations — i18n bundle owned by this service plugin
+ * (ADR-0029 D8).
+ *
+ * Object label/field/view/action translations for sys_presence, the object
+ * this plugin owns. Loaded at runtime via the plugin's `kernel:ready` hook
+ * (`i18n.loadTranslations`). Regenerate with `os i18n extract` against
+ * `scripts/i18n-extract.config.ts`.
+ */
+
+import type { TranslationBundle } from '@objectstack/spec/system';
+import { enObjects } from './en.objects.generated.js';
+import { zhCNObjects } from './zh-CN.objects.generated.js';
+import { jaJPObjects } from './ja-JP.objects.generated.js';
+import { esESObjects } from './es-ES.objects.generated.js';
+
+export const RealtimeTranslations: TranslationBundle = {
+  en: { objects: enObjects },
+  'zh-CN': { objects: zhCNObjects },
+  'ja-JP': { objects: jaJPObjects },
+  'es-ES': { objects: esESObjects },
+};
diff --git a/packages/services/service-realtime/src/translations/ja-JP.objects.generated.ts b/packages/services/service-realtime/src/translations/ja-JP.objects.generated.ts
new file mode 100644
index 000000000..935829b8a
--- /dev/null
+++ b/packages/services/service-realtime/src/translations/ja-JP.objects.generated.ts
@@ -0,0 +1,65 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'ja-JP'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const jaJPObjects: NonNullable<TranslationData['objects']> = {
+  sys_presence: {
+    label: "在席状況",
+    pluralLabel: "在席状況",
+    description: "リアルタイムのユーザー在席状況とアクティビティ追跡",
+    fields: {
+      id: {
+        label: "在席 ID"
+      },
+      created_at: {
+        label: "作成日時"
+      },
+      updated_at: {
+        label: "更新日時"
+      },
+      user_id: {
+        label: "ユーザー"
+      },
+      session_id: {
+        label: "セッション"
+      },
+      status: {
+        label: "ステータス",
+        options: {
+          online: "オンライン",
+          away: "離席中",
+          busy: "取り込み中",
+          offline: "オフライン"
+        }
+      },
+      last_seen: {
+        label: "最終確認日時"
+      },
+      current_location: {
+        label: "現在地"
+      },
+      device: {
+        label: "デバイス",
+        options: {
+          desktop: "デスクトップ",
+          mobile: "モバイル",
+          tablet: "タブレット",
+          other: "その他"
+        }
+      },
+      custom_status: {
+        label: "カスタムステータス"
+      },
+      metadata: {
+        label: "メタデータ",
+        help: "在席状態に関連付けられた任意の JSON メタデータ（PresenceStateSchema.metadata に対応）。"
+      }
+    }
+  }
+};
diff --git a/packages/services/service-realtime/src/translations/zh-CN.objects.generated.ts b/packages/services/service-realtime/src/translations/zh-CN.objects.generated.ts
new file mode 100644
index 000000000..3662ed153
--- /dev/null
+++ b/packages/services/service-realtime/src/translations/zh-CN.objects.generated.ts
@@ -0,0 +1,65 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * Auto-generated by 'os i18n extract' for locale 'zh-CN'.
+ * Edit translations in place; re-run extract (with --merge) to fill new gaps.
+ * Do not hand-edit the structure — only the leaf string values.
+ */
+
+import type { TranslationData } from '@objectstack/spec/system';
+
+export const zhCNObjects: NonNullable<TranslationData['objects']> = {
+  sys_presence: {
+    label: "在线状态",
+    pluralLabel: "在线状态",
+    description: "实时用户在线与活动跟踪",
+    fields: {
+      id: {
+        label: "在线状态 ID"
+      },
+      created_at: {
+        label: "创建时间"
+      },
+      updated_at: {
+        label: "更新时间"
+      },
+      user_id: {
+        label: "用户"
+      },
+      session_id: {
+        label: "会话"
+      },
+      status: {
+        label: "状态",
+        options: {
+          online: "在线",
+          away: "离开",
+          busy: "忙碌",
+          offline: "离线"
+        }
+      },
+      last_seen: {
+        label: "最近在线时间"
+      },
+      current_location: {
+        label: "当前位置"
+      },
+      device: {
+        label: "设备",
+        options: {
+          desktop: "桌面端",
+          mobile: "移动端",
+          tablet: "平板端",
+          other: "其他"
+        }
+      },
+      custom_status: {
+        label: "自定义状态"
+      },
+      metadata: {
+        label: "元数据",
+        help: "与在线状态关联的任意 JSON 元数据（对应 PresenceStateSchema.metadata）。"
+      }
+    }
+  }
+};