init: info-canicule MVP (Vigilance + climato + conseils)

Astro 5 SSR + ioredis cache Valkey, déployable sur shared-net.
- Vigilance temps réel via Opendatasoft (no-auth, LOv2)
- Carte SVG des 96 départements (gregoiredavid/france-geojson)
- Climato T° 30j par dept (CSV.GZ Météo France, cache 24h)
- Conseils officiels par phénomène (7 types Vigilance)
- /api/health (UptimeRobot) + /api/vigilance (JSON public CORS *)
- Dockerfile multi-stage, CI Forgejo deploy.yml (pattern Reteno)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.forgejo/workflows/deploy.yml

@@ -0,0 +1,34 @@
+name: Deploy info-canicule
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  deploy:
+    runs-on: docker
+    container:
+      image: alpine:3.20
+    steps:
+      - name: Install tooling
+        run: apk add --no-cache openssh-client git rsync
+
+      - name: Configure SSH
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.DEPLOY_SSH_KEY }}" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+          echo "${{ secrets.VPS_KNOWN_HOSTS }}" > ~/.ssh/known_hosts
+          chmod 644 ~/.ssh/known_hosts
+
+      - name: Deploy on VPS
+        run: |
+          ssh deploy@vps.nocleus.com bash -se <<'EOSSH'
+            set -euo pipefail
+            cd /opt/projects/info-canicule
+            git fetch --prune origin main
+            git reset --hard origin/main
+            make env
+            docker compose up -d --build --wait
+            docker image prune -f
+          EOSSH