优化全屏和无边框窗口设置，改进触摸事件支持注入逻辑，清理代码格式

electron/main.js

@@ -61,6 +61,8 @@ function createWindow() {
   mainWindow = new BrowserWindow({
     width: 1080,
     height: 1920,
+    fullscreen: true, // 全屏
+    frame: false, // 无边框
     webPreferences: {
       preload: path.join(__dirname, "preload.js"),
       nodeIntegration: false,
@@ -71,14 +73,18 @@ function createWindow() {
   // 启用触摸事件支持（Windows 触摸屏）
   mainWindow.webContents.on("did-finish-load", () => {
     // 注入触摸事件支持脚本
-    mainWindow.webContents.executeJavaScript(`
+    mainWindow.webContents
+      .executeJavaScript(
+        `
       // 确保触摸事件可用
       if (navigator.maxTouchPoints === 0) {
         console.log('[Electron] 未检测到触摸设备，将使用鼠标事件模拟');
       } else {
         console.log('[Electron] 检测到触摸设备，触摸点数:', navigator.maxTouchPoints);
       }
-    `).catch(err => log.error("Failed to inject touch support:", err));
+    `
+      )
+      .catch((err) => log.error("Failed to inject touch support:", err));
   });
 
   const isDev = !app.isPackaged;
@@ -151,7 +157,10 @@ ipcMain.handle("print-pdf", async (event, pdfDataOrUrl) => {
 
     // 如果是 base64 data URI，转换为临时文件
     if (pdfDataOrUrl.startsWith("data:application/pdf;base64,")) {
-      const base64Data = pdfDataOrUrl.replace("data:application/pdf;base64,", "");
+      const base64Data = pdfDataOrUrl.replace(
+        "data:application/pdf;base64,",
+        ""
+      );
       const buffer = Buffer.from(base64Data, "base64");
 
       // 创建临时文件
@@ -175,7 +184,10 @@ ipcMain.handle("print-pdf", async (event, pdfDataOrUrl) => {
       }
     }
     // 如果已经是 file:// 或 http(s):// 协议，保持原样
-    else if (!pdfDataOrUrl.startsWith("file://") && !pdfDataOrUrl.startsWith("http")) {
+    else if (
+      !pdfDataOrUrl.startsWith("file://") &&
+      !pdfDataOrUrl.startsWith("http")
+    ) {
       pdfPath = `file://${pdfDataOrUrl}`;
     }
 
@@ -194,7 +206,7 @@ ipcMain.handle("print-pdf", async (event, pdfDataOrUrl) => {
     log.info("PDF loaded for printing");
 
     // 等待更长时间确保 PDF 完全渲染
-    await new Promise(resolve => setTimeout(resolve, 2000));
+    await new Promise((resolve) => setTimeout(resolve, 2000));
 
     // 静默打印（直接调用系统打印对话框）
     return new Promise((resolve) => {