feat: BossAi 老板AI助手初始版本

包含功能:
- 法务参谋/经营决策/生活助理/情绪中心四大AI对话模块
- 专家咨询系统(用户选定→专家确认→咨询→回复→评价)
- 角色登录(用户/专家/管理员)+ ProtectedRoute 权限控制
- 管理后台(用户管理/专家管理/AI使用统计/专家活跃度)
- 专家工作台(待确认服务/待回复咨询/已回复咨询/服务中用户)
- 服务关系取消(用户和专家均可取消,需自己确认)
- 全页面移动端响应式适配
- 知识库RAG检索
- 对话历史(普通/保密模式)

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

perf_report.json

@@ -0,0 +1,82 @@
+[
+  {
+    "test": "single_session_ask",
+    "iterations": 5,
+    "avg_ms": 3483.7,
+    "min_ms": 1122.5,
+    "max_ms": 4308.9
+  },
+  {
+    "test": "concurrent_sessions_10",
+    "concurrency": 10,
+    "avg_ms": 2881.6,
+    "min_ms": 2047.0,
+    "max_ms": 4399.8,
+    "all_200": true,
+    "status_codes": [
+      200,
+      200,
+      200,
+      200,
+      200,
+      200,
+      200,
+      200,
+      200,
+      200
+    ]
+  },
+  {
+    "test": "long_document_parse",
+    "results": [
+      {
+        "size_kb": 10,
+        "parse_ms": 6.2,
+        "text_length": 9216
+      },
+      {
+        "size_kb": 100,
+        "parse_ms": 4.1,
+        "text_length": 92160
+      },
+      {
+        "size_kb": 500,
+        "parse_ms": 10.7,
+        "text_length": 460800
+      }
+    ]
+  },
+  {
+    "test": "ocr_image",
+    "results": [
+      {
+        "lines": 1,
+        "ocr_ms": 756.0,
+        "text_length": 19
+      },
+      {
+        "lines": 5,
+        "ocr_ms": 896.3,
+        "text_length": 99
+      },
+      {
+        "lines": 20,
+        "ocr_ms": 1472.3,
+        "text_length": 410
+      }
+    ]
+  },
+  {
+    "test": "rag_search",
+    "keyword_avg_ms": 30.1,
+    "vector_avg_ms": 46.5,
+    "queries": 5
+  },
+  {
+    "test": "session_destroy",
+    "iterations": 20,
+    "avg_ms": 2.8,
+    "min_ms": 2.6,
+    "max_ms": 3.1
+  }
+]