fix(docker): add vendor directory check before skipping composer install

Prevents false positives from stale hash files when vendor/autoload.php
is missing. This fixes "Failed to open stream" errors after volume cleanup
or fresh clone scenarios where the hash file exists but vendor directory
doesn't.

Makefile

@@ -58,4 +58,4 @@ docs:
 
 db:
 	@echo "Recreate DB..."
-	docker compose exec --user www php-fpm bash -c "php artisan migrate:fresh && php artisan db:seed"
+	docker compose exec --user www php-fpm bash -c "php artisan migrate:fresh --seed"

docker/entrypoint.sh

@@ -11,7 +11,7 @@ fi
 
 gosu www mkdir -p .hashes
 
-if [ ! -f .hashes/.composer-hash ] || ! sha1sum -c .hashes/.composer-hash; then
+if [ ! -f "vendor/autoload.php" ] || [ ! -f .hashes/.composer-hash ] || ! sha1sum -c .hashes/.composer-hash; then
   echo ">> composer.json or composer.lock changed, installing dependencies..."
   gosu www composer install --optimize-autoloader --no-interaction
   gosu www sha1sum composer.json composer.lock > .hashes/.composer-hash