初始化模版工程

remote-control/shared/file-types.ts

@@ -0,0 +1,60 @@
+/**
+ * 共享的文件类型常量和 MIME 推断工具
+ * 供前端 useFileUploader 和服务端 file-uploader 复用
+ */
+
+export const ACCEPT_FILE_TYPE_LIST = [
+  '.pdf', '.doc', '.docx', '.xls', '.xlsx', '.ppt', '.pptx',
+  '.txt', '.json', '.csv', '.md',
+  '.png', '.jpg', '.jpeg', '.gif', '.bmp', '.webp', '.svg', '.ico',
+  '.html', '.py', '.jsonld', '.xml', '.zip',
+  '.mp3', '.mp4', '.mov', '.m4a',
+  '.pdb', '.mermaid',
+]
+
+const MIME_MAP: Record<string, string> = {
+  '.pdf': 'application/pdf',
+  '.doc': 'application/msword',
+  '.docx': 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+  '.xls': 'application/vnd.ms-excel',
+  '.xlsx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+  '.ppt': 'application/vnd.ms-powerpoint',
+  '.pptx': 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+  '.txt': 'text/plain',
+  '.json': 'application/json',
+  '.csv': 'text/csv',
+  '.md': 'text/markdown',
+  '.png': 'image/png',
+  '.jpg': 'image/jpeg',
+  '.jpeg': 'image/jpeg',
+  '.gif': 'image/gif',
+  '.bmp': 'image/bmp',
+  '.webp': 'image/webp',
+  '.svg': 'image/svg+xml',
+  '.ico': 'image/x-icon',
+  '.html': 'text/html',
+  '.py': 'text/x-python',
+  '.jsonld': 'application/ld+json',
+  '.xml': 'application/xml',
+  '.zip': 'application/zip',
+  '.mp3': 'audio/mpeg',
+  '.mp4': 'video/mp4',
+  '.mov': 'video/quicktime',
+  '.m4a': 'audio/mp4',
+  '.pdb': 'application/vnd.microsoft.portable-executable',
+  '.mermaid': 'text/mermaid',
+}
+
+export function getFileExtension(filename: string): string {
+  return `.${(filename.split('.').pop() || '').toLowerCase()}`
+}
+
+export function getMimeByExtension(filename: string): string | undefined {
+  const ext = getFileExtension(filename)
+  return MIME_MAP[ext]
+}
+
+export function isSupportedFileType(filename: string): boolean {
+  const ext = getFileExtension(filename)
+  return ACCEPT_FILE_TYPE_LIST.includes(ext)
+}