feat: 重构知识库系统，移除Hermes集成，增强RAG和同步功能

主要变更:
- 移除Hermes智能体及相关回调服务
- 新增知识库RAG、同步、调度、规范化和索引任务服务
- 重构orchestrator服务，增强运行时聊天功能
- 更新前端聊天、政策制度、设置等页面样式和逻辑
- 更新expense_claims和document_intelligence服务
- 删除llm_wiki相关服务和测试文件
- 更新docker-compose配置和启动脚本

server/src/app/schemas/settings.py

@@ -58,18 +58,18 @@ class SettingsLlmForm(BaseModel):
     backupApiKey: str = Field(default="", max_length=1024)
     backupApiKeyConfigured: bool = False
 
-    vlmProvider: str = Field(min_length=1, max_length=64)
-    vlmModel: str = Field(min_length=1, max_length=255)
-    vlmEndpoint: str = Field(min_length=1, max_length=512)
-    vlmApiKey: str = Field(default="", max_length=1024)
-    vlmApiKeyConfigured: bool = False
-
     embeddingProvider: str = Field(min_length=1, max_length=64)
     embeddingModel: str = Field(min_length=1, max_length=255)
     embeddingEndpoint: str = Field(min_length=1, max_length=512)
     embeddingApiKey: str = Field(default="", max_length=1024)
     embeddingApiKeyConfigured: bool = False
 
+    rerankerProvider: str = Field(min_length=1, max_length=64)
+    rerankerModel: str = Field(min_length=1, max_length=255)
+    rerankerEndpoint: str = Field(min_length=1, max_length=512)
+    rerankerApiKey: str = Field(default="", max_length=1024)
+    rerankerApiKeyConfigured: bool = False
+
     @field_validator(
         "mainProvider",
         "mainModel",
@@ -79,14 +79,14 @@ class SettingsLlmForm(BaseModel):
         "backupModel",
         "backupEndpoint",
         "backupApiKey",
-        "vlmProvider",
-        "vlmModel",
-        "vlmEndpoint",
-        "vlmApiKey",
         "embeddingProvider",
         "embeddingModel",
         "embeddingEndpoint",
         "embeddingApiKey",
+        "rerankerProvider",
+        "rerankerModel",
+        "rerankerEndpoint",
+        "rerankerApiKey",
         mode="before",
     )
     @classmethod
@@ -185,8 +185,8 @@ class ModelConnectivityTestRequest(BaseModel):
     endpoint: str = Field(min_length=1, max_length=512)
     model: str = Field(min_length=1, max_length=255)
     api_key: str | None = Field(default=None, max_length=1024)
-    capability: Literal["chat", "embedding"] = "chat"
-    slot: Literal["main", "backup", "vlm", "embedding"] | None = None
+    capability: Literal["chat", "embedding", "reranker"] = "chat"
+    slot: Literal["main", "backup", "embedding", "reranker"] | None = None
 
     @field_validator("provider", "endpoint", "model", "api_key", mode="before")
     @classmethod
@@ -208,9 +208,9 @@ class ModelConnectivityTestRead(BaseModel):
 
 
 class RuntimeModelConfigRead(BaseModel):
-    slot: Literal["main", "backup", "vlm", "embedding"]
+    slot: Literal["main", "backup", "embedding", "reranker"]
     provider: str
     model: str
     endpoint: str
     apiKey: str
-    capability: Literal["chat", "embedding"]
+    capability: Literal["chat", "embedding", "reranker"]