refactor : migrate VERSION file to config/version.yaml

Same versioning system as SIRH/Lesstime. Updates nuxt.config.ts,
Dockerfile, deploy.sh, auto-tag CI, and release script.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

deploy/docker/Dockerfile.prod

@@ -19,7 +19,6 @@ COPY migrations migrations/
 COPY public public/
 COPY src src/
 COPY templates templates/
-COPY VERSION VERSION
 
 RUN composer dump-autoload --optimize --no-dev
 
@@ -31,6 +30,7 @@ COPY frontend/package.json frontend/package-lock.json ./
 RUN npm ci
 
 COPY frontend/ ./
+COPY config/version.yaml /app/config/version.yaml
 ENV CI=1 \
     NUXT_TELEMETRY_DISABLED=1 \
     NUXT_PUBLIC_API_BASE_URL=/api \

deploy/docker/deploy.sh

@@ -24,5 +24,5 @@ echo "==> Clearing cache..."
 sudo docker compose exec -T -u www-data app php bin/console cache:clear --env=prod
 sudo docker compose exec -T -u www-data app php bin/console cache:warmup --env=prod
 
-VERSION=$(sudo docker compose exec -T app cat VERSION)
+VERSION=$(sudo docker compose exec -T app cat config/version.yaml | grep 'app.version' | awk -F"'" '{print $2}')
 echo "==> Deployed v${VERSION}"