Sprint 1 : scaffolding complet de Glibredecision

Plateforme de decisions collectives pour Duniter/G1.
Backend FastAPI async + PostgreSQL (14 tables, 8 routers, 6 services,
moteur de vote avec formule d'inertie WoT/Smith/TechComm).
Frontend Nuxt 4 + Nuxt UI v3 + Pinia (9 pages, 5 stores).
Infrastructure Docker + Woodpecker CI + Traefik.
Documentation technique et utilisateur (15 fichiers).
Seed : Licence G1, Engagement Forgeron v2.0.0, 4 protocoles de vote.
30 tests unitaires (formules, mode params, vote nuance) -- tous verts.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker/frontend.Dockerfile

@@ -0,0 +1,45 @@
+# syntax = docker/dockerfile:1
+
+ARG NODE_VERSION=20-slim
+
+FROM node:${NODE_VERSION} AS base
+
+WORKDIR /src
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends curl && \
+    rm -rf /var/lib/apt/lists/*
+
+# ── Build ─────────────────────────────────────────────────────────────────────
+FROM base AS build
+
+ENV NODE_ENV=development
+
+COPY frontend/package.json frontend/package-lock.json* ./
+RUN npm ci
+
+COPY frontend/ .
+RUN npm run build
+
+# ── Production ────────────────────────────────────────────────────────────────
+FROM base AS production
+
+ENV PORT=3000 \
+    NODE_ENV=production
+
+COPY --from=build /src/.output /src/.output
+
+EXPOSE $PORT
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
+    CMD curl -f http://localhost:${PORT}/ || exit 1
+
+CMD ["node", ".output/server/index.mjs"]
+
+# ── Development ───────────────────────────────────────────────────────────────
+FROM base AS development
+
+ENV NODE_ENV=development
+
+WORKDIR /app
+ENTRYPOINT ["npm", "run", "dev"]