feat(graphrag): 新增多轮检索流式问答与用户管理界面

- 新增多轮 GraphRAG 检索功能，支持流式进度输出（SSE）
- 新增用户管理界面，可查看所有用户图谱统计并快速导航
- 新增多 Agent 任务拆解与执行服务，支持复杂任务协作处理
- 改进 embedding 和 rerank 服务的容错机制，支持备用模型和端点
- 更新前端样式遵循 Acmetone 设计规范，优化视觉一致性
- 新增流式分析接口，支持并行处理和专家评审选项

OnceLove/oncelove-graphrag/api/src/controllers/graphrag.controller.js

@@ -17,18 +17,97 @@ const sendServiceResult = async (reply, action) => {
 /**
  * GraphRAG 控制器：负责请求转发与响应封装。
  */
-export const createGraphRagController = (service) => ({
+export const createGraphRagController = (service, multiAgentService) => ({
   health: async (_request, reply) => reply.send({ ok: true }),
   ready: async (_request, reply) => sendServiceResult(reply, () => service.ready()),
   bootstrap: async (_request, reply) => sendServiceResult(reply, () => service.bootstrap()),
+  listUsers: async (request, reply) => sendServiceResult(reply, () => service.listUsers(request.query.limit || 200)),
   getGraphStats: async (request, reply) => sendServiceResult(reply, () => service.getGraphStats(request.query.userId || 'default')),
   ingest: async (request, reply) => sendServiceResult(reply, () => service.ingest(request.body)),
   queryTimeline: async (request, reply) =>
     sendServiceResult(reply, () => service.queryTimeline(request.body)),
   queryGraphRag: async (request, reply) =>
     sendServiceResult(reply, () => service.queryGraphRag(request.body)),
+  queryGraphRagMultiRound: async (request, reply) =>
+    sendServiceResult(reply, () => service.queryGraphRagMultiRound(request.body)),
+  queryGraphRagMultiRoundStream: async (request, reply) => {
+    reply.hijack();
+    const raw = reply.raw;
+    const requestOrigin = request.headers.origin;
+    raw.setHeader('Access-Control-Allow-Origin', requestOrigin || '*');
+    raw.setHeader('Vary', 'Origin');
+    raw.setHeader('Access-Control-Allow-Headers', 'Content-Type, Authorization');
+    raw.setHeader('Access-Control-Allow-Methods', 'POST, OPTIONS');
+    raw.setHeader('Content-Type', 'text/event-stream; charset=utf-8');
+    raw.setHeader('Cache-Control', 'no-cache, no-transform');
+    raw.setHeader('Connection', 'keep-alive');
+    raw.setHeader('X-Accel-Buffering', 'no');
+    raw.flushHeaders?.();
+    const push = (event, data) => {
+      raw.write(`event: ${event}\n`);
+      raw.write(`data: ${JSON.stringify(data)}\n\n`);
+    };
+    try {
+      const result = await service.queryGraphRagMultiRound(request.body, {
+        onProgress: (event) => push('progress', event)
+      });
+      push('done', result);
+    } catch (error) {
+      push('error', {
+        ok: false,
+        statusCode: Number(error?.statusCode) || 500,
+        message: error?.message || 'internal error'
+      });
+    } finally {
+      raw.end();
+    }
+  },
   analyzeAndIngest: async (request, reply) =>
     sendServiceResult(reply, () => service.incrementalUpdate(request.body.text, request.body.userId || 'default')),
+  reindexUserVectors: async (request, reply) =>
+    sendServiceResult(reply, () => service.reindexUserVectors({
+      userId: request.body.userId || 'default',
+      limit: request.body.limit
+    })),
+  analyzeAndIngestStream: async (request, reply) => {
+    reply.hijack();
+    const raw = reply.raw;
+    const requestOrigin = request.headers.origin;
+    raw.setHeader('Access-Control-Allow-Origin', requestOrigin || '*');
+    raw.setHeader('Vary', 'Origin');
+    raw.setHeader('Access-Control-Allow-Headers', 'Content-Type, Authorization');
+    raw.setHeader('Access-Control-Allow-Methods', 'POST, OPTIONS');
+    raw.setHeader('Content-Type', 'text/event-stream; charset=utf-8');
+    raw.setHeader('Cache-Control', 'no-cache, no-transform');
+    raw.setHeader('Connection', 'keep-alive');
+    raw.setHeader('X-Accel-Buffering', 'no');
+    raw.flushHeaders?.();
+    const push = (event, data) => {
+      raw.write(`event: ${event}\n`);
+      raw.write(`data: ${JSON.stringify(data)}\n\n`);
+    };
+    try {
+      push('progress', { stage: 'start' });
+      const result = await service.incrementalUpdate(
+        request.body.text,
+        request.body.userId || 'default',
+        {
+          parallelism: request.body.parallelism,
+          expertReview: request.body.expertReview,
+          onProgress: (event) => push('progress', event)
+        }
+      );
+      push('done', result);
+    } catch (error) {
+      push('error', {
+        ok: false,
+        statusCode: Number(error?.statusCode) || 500,
+        message: error?.message || 'internal error'
+      });
+    } finally {
+      raw.end();
+    }
+  },
   queryHistory: async (request, reply) =>
     sendServiceResult(reply, () => service.queryRelationshipHistory(
       request.body.userId || 'default',
@@ -36,5 +115,9 @@ export const createGraphRagController = (service) => ({
       request.body.limit || 20
     )),
   getAdvice: async (request, reply) =>
-    sendServiceResult(reply, () => service.getRelationshipAdvice(request.body.userId || 'default'))
+    sendServiceResult(reply, () => service.getRelationshipAdvice(request.body.userId || 'default')),
+  decomposeMultiAgentTask: async (request, reply) =>
+    sendServiceResult(reply, () => multiAgentService.decomposeTask(request.body)),
+  executeMultiAgentTask: async (request, reply) =>
+    sendServiceResult(reply, () => multiAgentService.executeTaskWorkflow(request.body))
 });