[WIP] Setup Basic Express Server with Configurable Port

[Vuk7912]

Setup Basic Express Server with Configurable Port

Description

Task

Implement basic Express server setup

Acceptance Criteria

• Server starts successfully on a configurable port
• Environment variable PORT can override default port
• Server has basic error handling for startup issues
• Logging of server start/stop events
• Graceful shutdown mechanism implemented

Summary of Work

Initial implementation of the Express server foundation for our CDN file serving application. This PR establishes the core server structure with configurable port support, preparing the groundwork for subsequent feature implementations.

Changes Made

• Create src/server.js as the main server entry point
• Install Express.js and necessary initial dependencies
• Implement basic Express application configuration
• Add environment-based port configuration
• Create basic server startup and shutdown mechanisms
• Add initial error handling for server startup

Tests

• Verify server can start successfully
• Confirm port can be configured via environment variable
• Test server graceful shutdown mechanism
• Validate basic error handling during server initialization

Signatures

Staking Key

3oBzgQ4y8YtmkxYGkse1fKKefi25twpMKU9BBdsYtjDQ: 2nj6XgmrKtaLtyGSaztQuAhRAn4CG3Vf5tK8fST6Ge261HhGaqiuksXMBTimkmiv3TAXVxeMGPEZrYcSAHc7A1NRfhcpfnxEJzPC4ddmaftYAsTkMm6jEp8ppmonjhrfupNHpaq8PfW6iyHfbZ5TAoWiL38P9hs3A7g8wpuCqD7FWyPxbBSnx2YSGmckEqKQcFD1zuCQZTMiMNW6uhnxptMeyDjF4PzubGZ9XGuJCYosxMQi2oXpFcZYGett1PQRsS7DN7L5R1c2ySVPxV8ap1FfNHpU3KkJCsD1r3c1UtwmZ8WXMEnN6LQ2roiD8ruJTRL6nkA12fnQ9qajHosBMUDvfopuAoGM71gfZrJpErY2S8K4c98pv1mcQM5nMBwYvZdtQmF4RtHB7Rsg3GEQ1HeLL4Hx7qYQ

Public Key

4WA5vRJLthsg6sJqVc6DQuRkGzvoxZ11SkqzwbqxCo2V: 2i2aJoVMKgf24NoAPepWDQCipddK52jG32wFUGyuFeKLoHdY97E9EUywuWudfKfHg8Ts1mo11QxuAj9nax7yhfxQfYHYqzv98hbN9U21gJ1vT3w5vtvR79r7qrrHpFcEKSUm5raofZnRrXuKLwr6275bKedu4tJ9NdCCCS1hP1BZs7no7bC945fcmSFd6CLku62zxhMnS332VPBmSMQosB7LdwvP9dqgwFnT9rQxfPfBJ1CSHj2qa8a8Uu2FDUSqm28daf5Eoy1qowho2Vgt7rAZyqm4tGzo3igM5g7QTK9Eq1AotLh9tn1JTFcmYXx1rbf1fbftebVCPZ6Cwj439WQQRBqpL9H39tBma5TGCni75Q7QDvbdsQH6zgVbETUvjuiwvu43UjhCT4Gbvgkz1rtamhE6ao7J