refactor: remove legacy data compatibility

src/server.ts

@@ -12,12 +12,17 @@ import { logger } from "./logger.js";
 import { LearningOrchestrator } from "./learning/orchestrator.js";
 import { MemoryStore } from "./memory/store.js";
 import { ResultReferenceResolver } from "./results/resolver.js";
-import { ResultReferenceStore } from "./results/store.js";
+import {
+  RESULT_REFERENCE_SOURCE,
+  ResultReferenceStore,
+} from "./results/store.js";
 import { buildChatRouter } from "./routes/chat.js";
 import { opencodeRuntime } from "./runtime/opencode.js";
 import { SessionRuntimeContextStore } from "./sessions/runtimeContextStore.js";
 
 const app = express();
+
+// 这里集中组装 Agent 服务的运行期依赖，路由层只通过接口调用，便于测试时替换实现。
 const sessionBridge = new ChatSessionBridge(opencodeRuntime);
 const sessionMetadataStore = new SessionMetadataStore();
 const sessionUiStateStore = new SessionUiStateStore();
@@ -190,7 +195,7 @@ app.post("/internal/tools/store-render-ref", async (req, res) => {
       projectId: context.projectId,
       projectKey: context.projectKey,
       sessionId: context.clientSessionId,
-      source: "migration",
+      source: RESULT_REFERENCE_SOURCE.agentGenerated,
       traceId: context.traceId,
     });
     res.json({