feat: establish reservation portal foundation

Dockerfile

@@ -0,0 +1,22 @@
+FROM php:8.4-fpm-alpine AS php-base
+
+RUN apk add --no-cache \
+        icu-dev libzip-dev linux-headers nodejs npm postgresql-dev sqlite-dev $PHPIZE_DEPS \
+    && docker-php-ext-install -j"$(nproc)" intl opcache pcntl pdo_pgsql pdo_sqlite zip \
+    && pecl install redis \
+    && docker-php-ext-enable redis \
+    && apk del $PHPIZE_DEPS linux-headers
+
+COPY --from=composer:2 /usr/bin/composer /usr/bin/composer
+
+WORKDIR /var/www/html
+
+COPY docker/php.ini /usr/local/etc/php/conf.d/portal.ini
+COPY composer.json composer.lock ./
+RUN composer install --no-interaction --prefer-dist --no-scripts
+
+COPY . .
+RUN composer dump-autoload --optimize \
+    && chown -R www-data:www-data storage bootstrap/cache
+
+CMD ["php-fpm"]