update nginx config

fix bind mount prisma, auto hydrate empty folder

backend/Dockerfile

@@ -36,8 +36,9 @@ COPY package*.json ./
 # Install production dependencies only
 RUN npm ci --only=production
 
-# Copy prisma schema and migrations
+# Copy prisma schema and migrations for runtime and hydration template
 COPY prisma ./prisma/
+COPY prisma ./prisma_template/
 
 # Copy built application from builder
 COPY --from=builder /app/dist ./dist

backend/docker-entrypoint.sh

@@ -1,6 +1,12 @@
 #!/bin/sh
 set -e
 
+# Auto-hydrate prisma directory when bind-mounted volume is empty
+if [ ! -f "/app/prisma/schema.prisma" ]; then
+	echo "Mount is empty. Hydrating /app/prisma from /app/prisma_template..."
+	cp -R /app/prisma_template/. /app/prisma/
+fi
+
 # Run migrations
 npx prisma migrate deploy
 

backend/src/index.ts

@@ -77,7 +77,13 @@ const prisma = new PrismaClient();
 const PORT = process.env.PORT || 8000;
 
 // Multer setup for file uploads
-const upload = multer({ dest: uploadDir });
+const upload = multer({
+  dest: uploadDir,
+  limits: {
+    fileSize: 50 * 1024 * 1024, // 50MB in bytes
+    files: 1, // Only one file per upload
+  },
+});
 
 app.use(
   cors({
@@ -88,6 +94,22 @@ app.use(
 app.use(express.json({ limit: "50mb" }));
 app.use(express.urlencoded({ extended: true, limit: "50mb" }));
 
+// Log large requests for monitoring and debugging
+app.use((req, res, next) => {
+  const contentLength = req.headers["content-length"];
+  if (contentLength) {
+    const sizeInMB = parseInt(contentLength) / 1024 / 1024;
+    if (sizeInMB > 10) {
+      console.log(
+        `[LARGE REQUEST] ${req.method} ${req.path} - ${sizeInMB.toFixed(
+          2
+        )}MB - Content-Length: ${contentLength} bytes`
+      );
+    }
+  }
+  next();
+});
+
 const elementsSchema = z.array(z.object({}).passthrough());
 
 const appStateSchema = z.object({}).passthrough();

frontend/nginx.conf

@@ -12,6 +12,9 @@ http {
     gzip_vary on;
     gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
 
+    # Set maximum request body size to 50MB to handle large drawings with embedded images
+    client_max_body_size 50M;
+
     server {
         listen 80;
         server_name localhost;
@@ -29,6 +32,18 @@ http {
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+            
+            # Buffer and timeout settings for large payloads
+            proxy_buffering on;
+            proxy_buffer_size 4k;
+            proxy_buffers 8 4k;
+            proxy_busy_buffers_size 8k;
+            client_body_buffer_size 128k;
+            
+            # Timeouts for large uploads (300 seconds)
+            proxy_connect_timeout 300s;
+            proxy_send_timeout 300s;
+            proxy_read_timeout 300s;
         }
 
         # WebSocket proxy for Socket.IO