Feat/pipeline enable all extensions (#1807)

* feat: 添加流水线扩展集成"启用所有"选项

为流水线的扩展集成配置添加独立的"启用所有插件"和"启用所有MCP服务器"选项。

主要变更：
- 数据模型：在 extensions_preferences 中添加 enable_all_plugins 和 enable_all_mcp_servers 字段
- 后端逻辑：修改 RuntimePipeline 以支持独立的启用所有选项，当启用时设置为 None 表示使用所有可用资源
- API 接口：更新 GET/PUT /api/v1/pipelines/{uuid}/extensions 以支持新字段
- 前端 UI：为插件和 MCP 服务器分别添加独立的开关控件
- 国际化：添加对应的中文翻译文本
- 默认行为：新创建的流水线默认启用所有插件和 MCP 服务器

🤖 Generated with [Claude Code](https://claude.com/claude-code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

* fix(i18n): add missing translations for pipeline extensions

Added translations for enable all plugins/MCP servers feature:
- en-US: English translations
- ja-JP: Japanese translations
- zh-Hant: Traditional Chinese translations

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

* chore: add migration for enable all extensions config

* fix: bad renaming

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Happy <yesreply@happy.engineering>

src/langbot/pkg/persistence/migrations/dbm011_dify_base_prompt_config.py

@@ -7,7 +7,7 @@ from ...entity.persistence import pipeline as persistence_pipeline
 
 @migration.migration_class(11)
 class DBMigrateDifyApiConfig(migration.DBMigration):
-    """Langflow API config"""
+    """Dify base prompt config"""
 
     async def upgrade(self):
         """Upgrade"""

src/langbot/pkg/persistence/migrations/dbm012_pipeline_extensions_enable_all.py

@@ -0,0 +1,47 @@
+from .. import migration
+
+import sqlalchemy
+
+from ...entity.persistence import pipeline as persistence_pipeline
+
+
+@migration.migration_class(12)
+class DBMigratePipelineExtensionsEnableAll(migration.DBMigration):
+    """Pipeline extensions enable all"""
+
+    async def upgrade(self):
+        """Upgrade"""
+        # read all pipelines
+        pipelines = await self.ap.persistence_mgr.execute_async(sqlalchemy.select(persistence_pipeline.LegacyPipeline))
+
+        for pipeline in pipelines:
+            serialized_pipeline = self.ap.persistence_mgr.serialize_model(persistence_pipeline.LegacyPipeline, pipeline)
+
+            extensions_preferences = serialized_pipeline['extensions_preferences']
+
+            if 'enable_all_plugins' not in extensions_preferences:
+                if 'plugins' in extensions_preferences:
+                    extensions_preferences['enable_all_plugins'] = False
+                else:
+                    extensions_preferences['enable_all_plugins'] = True
+                    extensions_preferences['plugins'] = []
+
+            if 'enable_all_mcp_servers' not in extensions_preferences:
+                if 'mcp_servers' in extensions_preferences:
+                    extensions_preferences['enable_all_mcp_servers'] = False
+                else:
+                    extensions_preferences['enable_all_mcp_servers'] = True
+                    extensions_preferences['mcp_servers'] = []
+
+            await self.ap.persistence_mgr.execute_async(
+                sqlalchemy.update(persistence_pipeline.LegacyPipeline)
+                .where(persistence_pipeline.LegacyPipeline.uuid == serialized_pipeline['uuid'])
+                .values(
+                    extensions_preferences=extensions_preferences,
+                    for_version=self.ap.ver_mgr.get_current_version(),
+                )
+            )
+
+    async def downgrade(self):
+        """Downgrade"""
+        pass