Add Composer to container for PHP dependency management

- Install Composer globally at /usr/local/bin/composer
- Available for all PHP versions and users
- Also includes previously added microdnf and less utilities

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Dockerfile

@@ -6,7 +6,7 @@ RUN dnf install -y \
       https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm \
       https://rpms.remirepo.net/enterprise/remi-release-9.rpm && \
     dnf update -y && \
-    dnf install -y httpd mod_ssl wget procps cronie iproute postgresql-devel && \
+    dnf install -y httpd mod_ssl wget procps cronie iproute postgresql-devel microdnf less && \
     dnf clean all && \
     rm -rf /var/cache/dnf /usr/share/doc /usr/share/man /usr/share/locale/*
 
@@ -24,6 +24,10 @@ RUN openssl req -newkey rsa:2048 -nodes -keyout /etc/pki/tls/private/localhost.k
 RUN curl -L -o /usr/local/bin/wp https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar && \
     chmod +x /usr/local/bin/wp
 
+# Download and install Composer
+RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer && \
+    chmod +x /usr/local/bin/composer
+
 # Copy configs and web files
 COPY ./configs/default-index.conf /etc/httpd/conf.d/
 COPY ./configs/prod-php.ini /etc/php.ini