Fix wallpaper upload issues: add wallpaper column, update Docker config for proper file handling

Dockerfile

@@ -43,8 +43,13 @@ COPY --from=builder /app/backend/dist ./dist
 COPY --from=builder /app/frontend/build ./frontend/build
 COPY --from=builder /app/database.sqlite ./database.sqlite
 
-# Create uploads directory
-RUN mkdir -p uploads/wallpapers
+# Create uploads directory with proper permissions
+RUN mkdir -p /app/uploads/wallpapers && \
+    chown -R node:node /app/uploads && \
+    chmod -R 755 /app/uploads
+
+# Switch to non-root user
+USER node
 
 # Expose port
 EXPOSE 3000

backend/src/index.ts

@@ -263,6 +263,7 @@ async function initializeDatabase() {
         location TEXT,
         slug TEXT NOT NULL UNIQUE,
         needed_items TEXT,
+        wallpaper TEXT,
         created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
       )
     `);

docker-compose.yml

@@ -7,10 +7,12 @@ services:
     ports:
       - "3000:3000"
     volumes:
-      - data:/app
+      - data:/app/database
+      - uploads:/app/uploads
     environment:
       - NODE_ENV=development
     restart: unless-stopped
 
 volumes:
   data:
+  uploads: