feat: add model file library links

server/fileRoutes.ts

@@ -24,7 +24,9 @@ ensureDir(TASKS_DIR);
 const diskStorage = multer.diskStorage({
   destination: (req, _file, cb) => {
     let dir: string;
-    if (req.params.modelId) {
+    if (req.params.modelId && req.path.includes('/model-pointcloud/')) {
+      dir = path.join(MODELS_DIR, String(parseInt(req.params.modelId, 10)), 'pointcloud');
+    } else if (req.params.modelId) {
       dir = path.join(MODELS_DIR, String(parseInt(req.params.modelId, 10)), 'cad');
     } else if (req.params.taskId && req.path.includes('/task-cad/')) {
       dir = path.join(TASKS_DIR, String(parseInt(req.params.taskId, 10)), 'cad');
@@ -92,6 +94,35 @@ router.post('/upload/cad/:modelId', diskUpload.single('file'), async (req, res)
   });
 });
 
+// ─── 车型点云文件上传 ────────────────────────────────────────────────────────
+// POST /api/files/upload/model-pointcloud/:modelId
+// multipart/form-data  field: file
+
+router.post('/upload/model-pointcloud/:modelId', diskUpload.single('file'), async (req, res) => {
+  const modelId = parseInt(req.params.modelId, 10);
+  if (!req.file || isNaN(modelId)) {
+    return res.status(400).json({ success: false, error: 'Missing file or modelId' });
+  }
+
+  const destPath = req.file.path;
+  const record = await db.createModelPointcloudFile({
+    modelId,
+    name: req.file.originalname,
+    fileSize: req.file.size,
+    filePath: destPath,
+  });
+
+  res.json({
+    success: true,
+    file: {
+      id: record.id,
+      name: record.name,
+      size: formatFileSize(record.fileSize),
+      filePath: record.filePath,
+    },
+  });
+});
+
 // ─── 任务 CAD 文件上传 ────────────────────────────────────────────────────────
 // POST /api/files/upload/task-cad/:taskId
 
@@ -173,6 +204,17 @@ router.get('/read/cad/:modelId/:filename', (req, res) => {
   res.sendFile(filePath);
 });
 
+// ─── 读取车型点云文件 ─────────────────────────────────────────────────────────
+// GET /api/files/read/model-pointcloud/:modelId/:filename
+
+router.get('/read/model-pointcloud/:modelId/:filename', (req, res) => {
+  const pcDir = path.join(MODELS_DIR, req.params.modelId, 'pointcloud');
+  const filePath = safeResolve(pcDir, req.params.filename);
+  if (!filePath) return res.status(403).json({ error: 'Access denied' });
+  if (!fs.existsSync(filePath)) return res.status(404).json({ error: 'File not found' });
+  res.sendFile(filePath);
+});
+
 // ─── 读取点云文件 ─────────────────────────────────────────────────────────────
 // GET /api/files/read/pointcloud/:taskId/:filename