Refactor CI, Build docker on push

docker/Dockerfile

@@ -0,0 +1,51 @@
+FROM php:8.1-fpm-bookworm
+
+ENV user=invoiceshelf-user
+ENV uid=1000
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    libpng-dev \
+    libonig-dev \
+    libxml2-dev \
+    zip \
+    unzip \
+    libzip-dev \
+    libmagickwand-dev \
+    nano \
+    mariadb-client
+
+# Clear cache
+RUN apt-get clean && rm -rf /var/lib/apt/lists/*
+
+RUN pecl install imagick \
+    && docker-php-ext-enable imagick
+
+# Install PHP extensions
+RUN docker-php-ext-install pdo_mysql mbstring zip exif pcntl bcmath gd
+
+# Get latest Composer
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+
+# Create system user to run Composer and Artisan Commands
+RUN useradd -G www-data,root -u $uid -d /home/$user $user
+RUN mkdir -p /home/$user/.composer && \
+    chown -R $user:$user /home/$user
+
+COPY . /var/www/
+COPY docker/php/uploads.ini /usr/local/etc/php/conf.d/uploads.ini
+RUN cp /var/www/.env.example /var/www/.env
+RUN chown -R $user:$user /var/www/
+RUN chmod -R 775 /var/www/storage
+RUN chmod -R 775 /var/www/bootstrap
+
+# Set working directory
+WORKDIR /var/www
+
+RUN composer install --no-interaction --prefer-dist --optimize-autoloader
+RUN php artisan key:generate
+RUN php artisan storage:link || true
+
+USER $user