feat(server): basic context api (#10056)

fix CLOUD-97
fix CLOUD-98

packages/backend/server/src/plugins/copilot/index.ts

@@ -5,6 +5,11 @@ import { FeatureModule } from '../../core/features';
 import { PermissionModule } from '../../core/permission';
 import { QuotaModule } from '../../core/quota';
 import { Plugin } from '../registry';
+import {
+  CopilotContextResolver,
+  CopilotContextRootResolver,
+  CopilotContextService,
+} from './context';
 import { CopilotController } from './controller';
 import { ChatMessageCache } from './message';
 import { PromptService } from './prompt';
@@ -41,8 +46,13 @@ registerCopilotProvider(PerplexityProvider);
     CopilotProviderService,
     CopilotStorage,
     PromptsManagementResolver,
+    // workflow
     CopilotWorkflowService,
     ...CopilotWorkflowExecutors,
+    // context
+    CopilotContextRootResolver,
+    CopilotContextResolver,
+    CopilotContextService,
   ],
   controllers: [CopilotController],
   contributesTo: ServerFeature.Copilot,