feat: Add timezone configuration for Docker to ensure correct time handling in production and development environments

Dockerfile.dev

@@ -1,6 +1,10 @@
 # Use Node.js 22.11.0 as the base image
 FROM node:22.11.0
 
+# Set timezone to Europe/Warsaw (Polish timezone)
+ENV TZ=Europe/Warsaw
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
 # Install git for development
 RUN apt-get update && apt-get install -y git && rm -rf /var/lib/apt/lists/*