fix: increase body size limit for large imports (#43)

- Increase nginx client_max_body_size from 10MB to 50MB
- Add bodyLimit: 50MB to Fastify import route
- Allows importing exports with many base64-encoded images

backend/src/routes/export.ts

@@ -389,6 +389,13 @@ export async function exportRoutes(app: FastifyInstance) {
   // ---------------------------------------------------------------------------
   app.post(
     "/import",
+    {
+      config: {
+        // Increase body limit to 50MB to handle exports with base64 images
+        rawBody: true,
+      },
+      bodyLimit: 50 * 1024 * 1024, // 50 MB
+    },
     async (request, reply) => {
       const userId = await getUserId(request, reply);
 

frontend/nginx.conf

@@ -12,8 +12,8 @@ server {
     add_header X-XSS-Protection "1; mode=block" always;
     add_header Referrer-Policy "strict-origin-when-cross-origin" always;
 
-    # Allow larger file uploads (for medication images)
-    client_max_body_size 10M;
+    # Allow larger file uploads (for medication images and data import/export)
+    client_max_body_size 50M;
 
     location / {
         try_files $uri /index.html;