Enable auto-docker build & publish

Dockerfile

@@ -0,0 +1,14 @@
+FROM node:22-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM alpine:3.20
+WORKDIR /web-content
+
+LABEL org.opencontainers.image.description="SvelteKit Static build - Designed to be an InitContainer to copy files from to the output web server container's filesystem"
+
+COPY --from=builder /app/build ./
+CMD ["sh", "-c", "cp -R /web-content/* /target-dir/"]