优化日志输出，拆分app.go，简化代码逻辑

frontend/src/App.tsx

@@ -83,7 +83,7 @@ function App() {
       const m = await GetMonitors();
       setMonitors(m || []);
     } catch (err) {
-      console.error('Failed to load monitors:', err);
+      // 静默失败，避免托盘/多显示器不可用时刷屏
     }
   }, []);
 
@@ -305,21 +305,16 @@ function App() {
   };
 
   const onResetConfirm = async (onlySettings: boolean) => {
-    console.log("Reset confirmed, onlySettings:", onlySettings);
     setIsResetDialogOpen(false);
     const tid = toast.loading(onlySettings ? '正在重置应用配置...' : '正在重置应用并清理数据...');
     try {
       if (onlySettings) {
-        console.log("Calling ResetSettings...");
         await ResetSettings();
       } else {
-        console.log("Calling ResetApplication...");
         await ResetApplication();
       }
-      console.log("Reset success");
       toast.success(onlySettings ? '应用配置已恢复默认' : '应用数据已清空，配置已恢复默认', { id: tid });
       setIsSettingsOpen(false);
-      // Refresh local state
       await loadConfig();
       if (!onlySettings) {
         await loadHistory();
@@ -328,7 +323,6 @@ function App() {
         fetchToday(true);
       }
     } catch (err) {
-      console.error("Reset error:", err);
       toast.error('重置失败: ' + err, { id: tid });
     }
   };

frontend/src/components/HistoryDrawer.tsx

@@ -25,8 +25,8 @@ export function HistoryDrawer({
   onDeleteHistory, 
   onClearHistory 
 }: HistoryDrawerProps) {
-  // Sort history by date descending to ensure newest is always first
-  const sortedHistory = [...history].sort((a, b) => b.date.localeCompare(a.date));
+  // 后端 ListHistory 已按 CreatedAt 降序返回，直接使用；若需严格按日期展示可在此再排序
+  const displayHistory = history;
 
   return (
     <Drawer shouldScaleBackground={false}>
@@ -47,7 +47,7 @@ export function HistoryDrawer({
         </DrawerHeader>
         <div className="flex-1 min-h-0 overflow-y-auto">
             <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 p-4 pb-12">
-              {sortedHistory.map((item) => (
+              {displayHistory.map((item) => (
                 <HistoryItemCard 
                   key={item.key} 
                   item={item} 
@@ -56,7 +56,7 @@ export function HistoryDrawer({
                   onDelete={() => onDeleteHistory(item.key)}
                 />
               ))}
-              {sortedHistory.length === 0 && (
+              {displayHistory.length === 0 && (
                 <div className="col-span-full py-20 text-center text-muted-foreground font-light">
                   暂无历史记录
                 </div>

frontend/src/lib/watermark.ts

@@ -1,7 +1,6 @@
 import { Solar, Lunar, HolidayUtil } from 'lunar-javascript';
 
 export async function renderWatermark(data: any): Promise<string> {
-  console.log("renderWatermark called with:", { ...data, image_path: data.image_path ? "data:..." : undefined });
   const { 
     image_path, title, date, copyright, variant, 
     enable_watermark, enable_calendar, holiday_data,
@@ -50,7 +49,6 @@ export async function renderWatermark(data: any): Promise<string> {
 
   // 2. Draw Calendar if enabled
   if (enable_calendar) {
-    console.log("Drawing calendar...");
     drawCalendar(ctx, canvas, date, holiday_data, data.target_ratio);
   }
 
@@ -77,8 +75,8 @@ function calculateSafeArea(width: number, height: number, targetRatio: number) {
   const topY = (height - visibleHeight) / 2;
   const bottomY = (height + visibleHeight) / 2;
 
-  // 基础边距：可见高度的 5%
-  const paddingX = visibleWidth * 0.04; 
+  // 基础边距：可见区域的 4%
+  const paddingX = visibleWidth * 0.04;
   const paddingY = visibleHeight * 0.04;
 
   return { 
@@ -204,8 +202,6 @@ function drawCalendar(ctx: CanvasRenderingContext2D, canvas: HTMLCanvasElement,
       throw new Error(`Invalid date: ${dateStr}`);
     }
 
-    console.log(`Calendar for: ${year}-${month}-${today}`);
-
     // 日历配置
     const safeArea = calculateSafeArea(canvas.width, canvas.height, targetRatio);
     const scale = safeArea.visibleHeight / 1080;