[WIP] Implement Global Error Handling Middleware for Hero API

[mrkuon12354]

Implement Global Error Handling Middleware for Hero API

Description

Task

Add basic error handling middleware

Acceptance Criteria

• Middleware handles both synchronous and asynchronous errors
• Error responses have a standardized JSON structure
• Appropriate HTTP status codes are returned based on error type
• Errors are logged for debugging purposes
• No sensitive information is leaked in error responses

Summary of Work

This pull request adds a centralized error handling middleware to the Hero API to ensure consistent error responses and improve error tracking and debugging capabilities.

Changes Made

• Create a new middleware file: src/middleware/errorHandler.ts
• Implement global error handling logic to catch and process unhandled errors
• Define a consistent error response format
• Add error type classification and appropriate HTTP status codes
• Integrate error handling middleware into the main Express application

Tests

• Verify middleware catches unhandled errors
• Confirm consistent error response structure
• Test different error scenarios (404, 500, validation errors)
• Ensure sensitive error details are not exposed in production
• Validate logging of error events

Signatures

Staking Key

BXzBH5MrNbifDx8ELB6LfjkZpvWfEUjajF6aBKvvxQAh: 8LALAWu5RePnmzqErr3smNJ8SfdMqmiPaTMjgWot3zS3Ei7rhSsPy2iz3Hb5gzNpWBWbfJ7ZgnoujezoSK1KjmrSHSmMKTngkVAZbm5sNeaT7MRbvqGMAtS1wfj6x13GXGnNPwcZEhxLdPqc2bPqRN4Uc8UgF4othBT9pS1rmMz5V2mD7VUHAd8QWjPrDd1JVGsZPdmMugUvpcdrw5zRrN32SKnK1Ay2drjYTAeryoognKB5bUx3g7vPF3cSfPjCnRugVx5tWQHHckFamopw8dv136FGSMzvtpE3V98BUst53GQfpygSuA5pz7L7NzzmWCubcBKTV7k1A529X1Fx6bEmLhHTB28jgenkDV8C65xy7gB3N4i3S7knaEGs662wNbfyZzf9gxhVqoRN7ohaygTxAwFYYbEf95v

Public Key

25aNKzScY6d45qv1iCuzwh3SjHAQudP3cphJoRMqJyY5: 2pN6qcPAMSNjB8mPKAy65HAwvVBaA8Dv21uF5wYDhqCJvQBNTUows87VpGDza4QJaAXc3jney9k4CQfvcmzRTHdz4jHVw8HnQjtLZM52Z1uec2sv8GComLQLiGe3FG9LwTYGofcnMxte7ifftkm9uUA4HyTKov22QeVBKdv97Yz4o4A9BHHQunZ9mr9h5KYiNsVMGpttmNchB5THdkAGy3bXuuYuygDpTHYnhTPGV6G47Js4Sp8Jd8MgNBnfGQuPHcp7PW84hhZFPWK6kvJWv9toh7j7qoXayXfQJB3WJY3B7sYY82Cozdq7piiycBeFFSJsYR9x8Xp1HGJNK8s6qchw2hHYVjwX3heqJBqnghtEjk8QhmMx7iL1rEatPUqM8AwkY3aNVMp7UwNnSBJWa4a2yPnS2AdQm2kC