ci : create svgs at build time

Dockerfile

@@ -1,8 +1,15 @@
-FROM node:lts-alpine AS build-stage
+FROM node:lts-alpine AS install-stage
 WORKDIR /app
 COPY package*.json ./
 RUN npm install
 COPY . .
+
+FROM git.legonzaur.fr/heronfief/cards-gen:main AS svg-stage
+RUN python3 -u ./src/generate_cards_mvp.py
+
+FROM install-stage AS build-stage
+COPY --from=svg-stage /app/output/heron ./assets/images/cards/heron-svg
+
 ARG NUXT_PUBLIC_ENDPOINT
 ARG NUXT_PUBLIC_DISCORD_LOGIN_ENDPOINT
 ARG NUXT_PUBLIC_WELCOME_MESSAGE