fix(frontend): .env reaches the build for $env/static, the runtime image stays without it; eslint + prettier as an alternative to biome; image named with dashes

template/{{ part_dir }}/{% if serve != 'api' %}Dockerfile{% endif %}.jinja

@@ -1,20 +1,41 @@
 {% if frontend_adapter == 'bun' -%}
-FROM oven/bun:alpine
+FROM oven/bun:alpine AS deps
 
 ENV TERM=xterm-256color
 ENV COLORTERM=truecolor
+ENV BUN_INSTALL_CACHE_DIR=/bun-cache
 
 WORKDIR /app
 
 COPY package.json bun.lock* ./
 
-RUN bun install --frozen-lockfile
+RUN --mount=type=cache,target=/bun-cache bun install --frozen-lockfile
+
+
+# .env is in the context ($env/static/* are inlined at build) and stays in
+# this stage: the runtime image below gets build/ and production deps only.
+FROM deps AS builder
 
 COPY . .
 
 RUN bun --bun svelte-kit sync
 RUN bun --bun run build
 
+
+FROM oven/bun:alpine AS runtime
+
+ENV NODE_ENV=production
+
+WORKDIR /app
+
+COPY package.json bun.lock* ./
+
+RUN --mount=type=cache,target=/bun-cache,env=BUN_INSTALL_CACHE_DIR bun install --frozen-lockfile --production
+
+COPY --from=builder /app/build ./build
+
+EXPOSE 3000
+
 ENTRYPOINT ["bun"]
 CMD ["build/index.js"]
 {%- else -%}