fix: rename ath -> core

Dockerfile

@@ -0,0 +1,39 @@
+# syntax = docker/dockerfile:1
+
+# Adjust BUN_VERSION as desired
+ARG BUN_VERSION=1.1.0
+FROM oven/bun:${BUN_VERSION}-slim as base
+
+LABEL fly_launch_runtime="Bun"
+
+# Bun app lives here
+WORKDIR /app
+
+# Set production environment
+ENV NODE_ENV="production"
+
+
+# Throw-away build stage to reduce size of final image
+FROM base as build
+
+# Install packages needed to build node modules
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential pkg-config python-is-python3
+
+# Install node modules
+COPY --link bun.lockb package.json ./
+RUN bun install --ci
+
+# Copy application code
+COPY --link . .
+
+
+# Final stage for app image
+FROM base
+
+# Copy built application
+COPY --from=build /app /app
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+CMD [ "bun", "index.js" ]