优化 Electron 打包体积：排除源码与冗余依赖

配置 electron-builder files 仅打 out 产物，移除未用依赖并将 Vue 生态移至 devDependencies；koffi 仅解包 win32_x64 并在 afterPack 裁剪；打包前清理旧 zip。

app/scripts/check-native-dlls.js

@@ -14,6 +14,15 @@ const required = [
   'opencv_world490d.dll'
 ]
 
+const opencvRelease = path.join(nativeDir, 'opencv_world490.dll')
+const opencvDebug = path.join(nativeDir, 'opencv_world490d.dll')
+if (fs.existsSync(opencvRelease)) {
+  console.warn('提示: 检测到 opencv_world490.dll，生产环境建议用 Release 版替换 Debug 版 opencv_world490d.dll 以减小体积')
+} else if (fs.existsSync(opencvDebug)) {
+  const mb = Math.round(fs.statSync(opencvDebug).size / 1024 / 1024)
+  console.warn(`提示: 当前使用 Debug 版 OpenCV (${mb} MB)，可从 docs/API/lib 换 Release 版 opencv_world490.dll`)
+}
+
 const missing = required.filter((name) => !fs.existsSync(path.join(nativeDir, name)))
 if (missing.length) {
   console.error(`resources/native 缺少: ${missing.join(', ')}`)

app/scripts/clean-release-artifacts.js

@@ -0,0 +1,12 @@
+/** 打包前清理 release 目录中的旧 zip，避免误统计体积 */
+const fs = require('fs')
+const path = require('path')
+
+const releaseDir = path.join(__dirname, '..', 'release')
+if (!fs.existsSync(releaseDir)) process.exit(0)
+
+for (const name of fs.readdirSync(releaseDir)) {
+  if (name.endsWith('.zip')) {
+    fs.unlinkSync(path.join(releaseDir, name))
+  }
+}

app/scripts/prune-pack.js

@@ -0,0 +1,31 @@
+/** electron-builder afterPack：仅保留 Windows x64 的 koffi 原生模块 */
+const fs = require('fs')
+const path = require('path')
+
+const KOFFI_KEEP = new Set(['build', 'index.js', 'indirect.js', 'package.json', 'LICENSE.txt'])
+const NATIVE_PLATFORM = 'win32_x64'
+
+exports.default = async function afterPack(context) {
+  const koffiRoot = path.join(
+    context.appOutDir,
+    'resources',
+    'app.asar.unpacked',
+    'node_modules',
+    'koffi'
+  )
+  if (!fs.existsSync(koffiRoot)) return
+
+  for (const name of fs.readdirSync(koffiRoot)) {
+    if (!KOFFI_KEEP.has(name)) {
+      fs.rmSync(path.join(koffiRoot, name), { recursive: true, force: true })
+    }
+  }
+
+  const buildDir = path.join(koffiRoot, 'build', 'koffi')
+  if (!fs.existsSync(buildDir)) return
+  for (const plat of fs.readdirSync(buildDir)) {
+    if (plat !== NATIVE_PLATFORM) {
+      fs.rmSync(path.join(buildDir, plat), { recursive: true, force: true })
+    }
+  }
+}