Update Dockerfile

Dockerfile

@@ -1,28 +1,31 @@
-# 1. Use Node 18 (Alpine)
 FROM node:18-alpine
 
-# 2. Set up our working directory
+# Create a non-root user (optional but recommended)
+RUN adduser -D showdown
+
+# Create and use /app as the working directory
 WORKDIR /app
 
-# 3. Install any system packages we may need
+# Install Git if needed
 RUN apk add --no-cache git
 
-# 4. Copy local files into the container
+# Copy code from your local machine into the container
 COPY . /app
 
-# 5. Install dependencies
+# Install dependencies
 RUN npm install
 
-# 6. Build or transpile, if Pokémon Showdown requires it
-#    If Showdown has a "build" script, run it here.
-#    In the official repo, there's a `build` script that compiles TS -> JS:
+# Build the TS → JS so that runtime doesn't need to compile again
 RUN npm run build
 
-# 7. Expose the default port
+# Make sure the showdown user owns all files
+RUN chown -R showdown:showdown /app
+
+# Switch to the showdown user
+USER showdown
+
+# Expose default port
 EXPOSE 8000
 
-# 8. Start the server
-#    If Showdown is built into "dist", you might do:
-#    CMD ["node", "dist/pokemon-showdown", "start"]
-#    Otherwise, if the original scripts remain, it might be:
+# Finally, launch the server
 CMD ["node", "pokemon-showdown", "start"]