Fix log permission: touch and chown laravel.log in entrypoint

CapRover volume remounts can override build-time chown, leaving
storage/logs owned by root. Explicitly touch + chown the log file
at container start before php-fpm runs.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker/entrypoint.sh

@@ -11,9 +11,13 @@ mkdir -p \
     storage/logs \
     bootstrap/cache
 
-# Fix permissions
+# Fix permissions — run as root before supervisord drops to www-data
 chown -R www-data:www-data storage bootstrap/cache
 chmod -R 775 storage bootstrap/cache
+# Ensure log file exists and is writable (CapRover volumes can remount with wrong owner)
+touch storage/logs/laravel.log
+chown www-data:www-data storage/logs/laravel.log
+chmod 664 storage/logs/laravel.log
 
 # Build .env from Docker env vars (CapRover passes them as container env)
 : > .env