fix: add target to a bun build command

Dockerfile

@@ -15,7 +15,7 @@ COPY src ./src
 COPY tsconfig.json ./
 
 # Build the application for production
-RUN bun build ./src/index.ts --outdir ./dist --minify
+RUN bun build ./src/index.ts --outdir ./dist --minify --target=bun
 
 # Multi-stage build - runtime stage
 FROM oven/bun:latest AS runtime