Add initial Dockerfile for deployment

Dockerfile

@@ -0,0 +1,18 @@
+# --- BUILD ---
+FROM node:24-alpine AS build
+RUN corepack enable && corepack prepare pnpm@latest --activate
+
+WORKDIR /app
+
+# Copy depedencies
+COPY package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+
+# Copy all
+COPY . .
+RUN pnpm build
+
+# --- DEPLOY ---
+FROM caddy:alpine
+COPY --from=build /app/dist /usr/share/caddy
+EXPOSE 80