chore: 新增清理脚本并优化项目配置

1.  新增clean脚本用于清理项目构建产物和缓存
2.  更新.gitignore忽略eslint缓存和src-tauri的target目录
3.  在package.json中添加clean命令
4.  格式化StudentManager组件的回调函数代码

scripts/clean.cjs

@@ -0,0 +1,144 @@
+/**
+ * Clean script - Similar to `flutter clean`
+ * Cleans all build artifacts and caches for the Tauri project
+ */
+
+const fs = require("fs")
+const path = require("path")
+
+// ANSI color codes for console output
+const colors = {
+  red: "\x1b[31m",
+  green: "\x1b[32m",
+  yellow: "\x1b[33m",
+  blue: "\x1b[34m",
+  reset: "\x1b[0m",
+}
+
+/**
+ * Delete a directory recursively
+ * @param {string} dirPath - Path to directory to delete
+ */
+function deleteDirectory(dirPath) {
+  const fullPath = path.resolve(dirPath)
+
+  if (!fs.existsSync(fullPath)) {
+    console.log(`${colors.yellow}⊘${colors.reset} Not found: ${dirPath}`)
+    return false
+  }
+
+  try {
+    fs.rmSync(fullPath, { recursive: true, force: true })
+    console.log(`${colors.green}✓${colors.reset} Deleted: ${dirPath}`)
+    return true
+  } catch (error) {
+    console.error(`${colors.red}✗${colors.reset} Failed to delete ${dirPath}: ${error.message}`)
+    return false
+  }
+}
+
+/**
+ * Delete a file
+ * @param {string} filePath - Path to file to delete
+ */
+function deleteFile(filePath) {
+  const fullPath = path.resolve(filePath)
+
+  if (!fs.existsSync(fullPath)) {
+    console.log(`${colors.yellow}⊘${colors.reset} Not found: ${filePath}`)
+    return false
+  }
+
+  try {
+    fs.unlinkSync(fullPath)
+    console.log(`${colors.green}✓${colors.reset} Deleted: ${filePath}`)
+    return true
+  } catch (error) {
+    console.error(`${colors.red}✗${colors.reset} Failed to delete ${filePath}: ${error.message}`)
+    return false
+  }
+}
+
+/**
+ * Main clean function
+ */
+function clean() {
+  console.log(`\n${colors.blue}════════════════════════════════════════${colors.reset}`)
+  console.log(`${colors.blue}  SecScore Clean - Removing build artifacts${colors.reset}`)
+  console.log(`${colors.blue}════════════════════════════════════════${colors.reset}\n`)
+
+  // Get project root directory
+  const rootDir = path.resolve(__dirname, "..")
+
+  // Directories to clean
+  const dirsToClean = [
+    // Node.js / Frontend
+    "node_modules",
+    "dist",
+    ".vite",
+
+    // Rust / Tauri
+    "src-tauri/target",
+
+    // Test coverage
+    "coverage",
+
+    // Cache directories
+    ".eslintcache",
+    "node_modules/.cache",
+  ]
+
+  // Files to clean
+  const filesToClean = [
+    // Lock files
+    "pnpm-lock.yaml",
+  ]
+
+  let deletedCount = 0
+  let failedCount = 0
+
+  // Clean directories
+  console.log(`${colors.blue}Cleaning directories:${colors.reset}`)
+  for (const dir of dirsToClean) {
+    const dirPath = path.join(rootDir, dir)
+    if (deleteDirectory(dirPath)) {
+      deletedCount++
+    } else if (fs.existsSync(dirPath)) {
+      failedCount++
+    }
+  }
+
+  // Clean files
+  if (filesToClean.length > 0) {
+    console.log(`\n${colors.blue}Cleaning files:${colors.reset}`)
+    for (const file of filesToClean) {
+      const filePath = path.join(rootDir, file)
+      if (deleteFile(filePath)) {
+        deletedCount++
+      } else if (fs.existsSync(filePath)) {
+        failedCount++
+      }
+    }
+  }
+
+  // Summary
+  console.log(`\n${colors.blue}════════════════════════════════════════${colors.reset}`)
+  console.log(`${colors.green}✓ Deleted: ${deletedCount}${colors.reset}`)
+  if (failedCount > 0) {
+    console.log(`${colors.red}✗ Failed: ${failedCount}${colors.reset}`)
+  }
+  console.log(`${colors.blue}════════════════════════════════════════${colors.reset}`)
+
+  if (failedCount > 0) {
+    console.log(
+      `\n${colors.yellow}⚠ Some items could not be deleted. Try closing any running processes and try again.${colors.reset}\n`
+    )
+    process.exit(1)
+  }
+
+  console.log(`\n${colors.green}✓ Clean completed successfully!${colors.reset}`)
+  console.log(`${colors.yellow}ℹ Run 'pnpm install' to reinstall dependencies.${colors.reset}\n`)
+}
+
+// Run clean
+clean()