Desktop app dynamic config of API Port (#40)

* added dynamic configuration of Port in Desktop app
* added dynamic configuration of API_URL to docker deployments.

Now it works with editing only .env file.

docker/Dockerfile.frontend.dev

@@ -9,8 +9,12 @@ COPY package*.json ./
 # Install dependencies
 RUN npm install
 
+# Copy entrypoint script that generates config.json
+COPY docker-dev-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
+
 # Expose Vite dev server port
 EXPOSE 5173
 
-# Start development server with host binding for Docker
-CMD ["npm", "run", "dev", "--", "--host", "0.0.0.0"]
+# Use entrypoint that generates config.json before starting Vite
+ENTRYPOINT ["/docker-entrypoint.sh"]