Update packages. Add docker support, move migration to command, add stocks as a new table.

Dockerfile

@@ -0,0 +1,19 @@
+FROM php:8.3-cli
+
+WORKDIR /usr/src/app
+
+RUN apt-get update && apt-get install -y \
+    git \
+    unzip \
+    libzip-dev
+
+RUN docker-php-ext-install zip
+
+RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+
+COPY composer.json composer.lock ./
+RUN composer install --no-dev --optimize-autoloader
+
+COPY . .
+
+CMD ["php", "browser.php"]