feat: support to adjust writing style (#290)

* feat: implment backend for adjust report style

* feat: add web part

* fix test cases

* fix: fix typing

---------

Co-authored-by: Henry Li <henry1943@163.com>

web/src/core/api/chat.ts

@@ -23,6 +23,7 @@ export async function* chatStream(
     max_search_results?: number;
     interrupt_feedback?: string;
     enable_background_investigation: boolean;
+    report_style?: "academic" | "popular_science" | "news" | "social_media";
     mcp_settings?: {
       servers: Record<
         string,

web/src/core/store/settings-store.ts

@@ -14,6 +14,7 @@ const DEFAULT_SETTINGS: SettingsState = {
     maxPlanIterations: 1,
     maxStepNum: 3,
     maxSearchResults: 3,
+    reportStyle: "academic",
   },
   mcp: {
     servers: [],
@@ -27,6 +28,7 @@ export type SettingsState = {
     maxPlanIterations: number;
     maxStepNum: number;
     maxSearchResults: number;
+    reportStyle: "academic" | "popular_science" | "news" | "social_media";
   };
   mcp: {
     servers: MCPServerMetadata[];
@@ -125,6 +127,16 @@ export const getChatStreamSettings = () => {
   };
 };
 
+export function setReportStyle(value: "academic" | "popular_science" | "news" | "social_media") {
+  useSettingsStore.setState((state) => ({
+    general: {
+      ...state.general,
+      reportStyle: value,
+    },
+  }));
+  saveSettings();
+}
+
 export function setEnableBackgroundInvestigation(value: boolean) {
   useSettingsStore.setState((state) => ({
     general: {

web/src/core/store/store.ts

@@ -109,6 +109,7 @@ export async function sendMessage(
       max_plan_iterations: settings.maxPlanIterations,
       max_step_num: settings.maxStepNum,
       max_search_results: settings.maxSearchResults,
+      report_style: settings.reportStyle,
       mcp_settings: settings.mcpSettings,
     },
     options,