新增 ChatDto 数据传输对象，更新聊天接口以支持知识库功能，优化聊天服务逻辑，调整前端组件以提升用户体验。

frontend/src/api/schema/openapi.json

@@ -894,7 +894,7 @@
           "content": {
             "application/json": {
               "schema": {
-                "type": "string"
+                "$ref": "#/components/schemas/ChatDto"
               }
             }
           },
@@ -1580,7 +1580,8 @@
       "DocUpdateDto": {
         "required": [
           "enable",
-          "id"
+          "id",
+          "libId"
         ],
         "type": "object",
         "properties": {
@@ -1588,6 +1589,10 @@
             "type": "integer",
             "format": "int64"
           },
+          "libId": {
+            "type": "integer",
+            "format": "int64"
+          },
           "enable": {
             "type": "boolean"
           }
@@ -1868,6 +1873,29 @@
           }
         }
       },
+      "ChatDto": {
+        "required": [
+          "message",
+          "mode"
+        ],
+        "type": "object",
+        "properties": {
+          "mode": {
+            "type": "string",
+            "enum": [
+              "NORMAL",
+              "WITH_LIBRARY"
+            ]
+          },
+          "libraryId": {
+            "type": "integer",
+            "format": "int64"
+          },
+          "message": {
+            "type": "string"
+          }
+        }
+      },
       "PageRequestDto": {
         "type": "object",
         "properties": {

frontend/src/api/types/schema.d.ts

@@ -783,6 +783,8 @@ export interface components {
 		DocUpdateDto: {
 			/** Format: int64 */
 			id: number;
+			/** Format: int64 */
+			libId: number;
 			enable: boolean;
 		};
 		LlmVm: {
@@ -867,6 +869,13 @@ export interface components {
 			username: string;
 			password: string;
 		};
+		ChatDto: {
+			/** @enum {string} */
+			mode: "NORMAL" | "WITH_LIBRARY";
+			/** Format: int64 */
+			libraryId?: number;
+			message: string;
+		};
 		PageRequestDto: {
 			/** Format: int64 */
 			page?: number;
@@ -1888,7 +1897,7 @@ export interface operations {
 		};
 		requestBody: {
 			content: {
-				"application/json": string;
+				"application/json": components["schemas"]["ChatDto"];
 			};
 		};
 		responses: {