ci(deploy): standardize docker compose env file usage across scripts

- Added --env-file .env to all docker compose commands for consistent environment variable loading
- Added MISTRAL_API_KEY validation in deploy.sh with fatal error if missing
- Added --force-recreate flag to recipe-api restarts in disable/enable receipt trace scripts
- Added .env file existence check in rebuild_flutter.sh
- Added API service recreation logic in deploy.sh when backend/importer services are updated

scripts/rebuild_flutter.sh

@@ -2,7 +2,7 @@
 set -Eeuo pipefail
 
 APP_DIR="${1:-/opt/containers/recipe-app}"
-COMPOSE_FILES=(-f compose.yml -f compose.flutter.yml)
+COMPOSE_FILES=(--env-file .env -f compose.yml -f compose.flutter.yml)
 SERVICE="recipe-flutter"
 
 log() { echo "[flutter-rebuild] $*"; }
@@ -18,6 +18,8 @@ if [ ! -f "compose.yml" ] || [ ! -f "compose.flutter.yml" ]; then
   fail "compose.yml eller compose.flutter.yml saknas i $APP_DIR"
 fi
 
+[ -f ".env" ] || fail ".env saknas i $APP_DIR"
+
 log "Bygger om $SERVICE"
 docker compose "${COMPOSE_FILES[@]}" build "$SERVICE"