Add WP-CLI to README features

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -4,9 +4,15 @@ ARG PHP_VERSION=8.4
 
 FROM wordpress:php${PHP_VERSION} AS upstream
 
+WORKDIR /tmp
 RUN pecl install redis apcu; \
     docker-php-ext-enable redis apcu;
 
+RUN curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar; \
+    chmod +x wp-cli.phar; \
+    mv wp-cli.phar /usr/local/bin/wp;
+
+
 FROM upstream AS runtime
 
 WORKDIR /var/www/html

README.md

@@ -7,6 +7,7 @@ Custom WordPress Docker image with Redis and APCu extensions for object caching.
 - Based on official `wordpress:php8.4` image
 - Redis extension for external object caching
 - APCu extension for in-memory caching
+- WP-CLI pre-installed for command-line WordPress management
 
 ## Usage