Review and enhance the configuration of the express.json() middleware

[mattfsourcecode]

• Set Payload Size Limit: Configure the express.json() middleware to enforce a strict payload size limit (e.g., 1mb).

• Handle Parsing Errors Gracefully: Ensure proper error handling for scenarios where the JSON payload exceeds the size limit or is malformed. Return a user-friendly error response (e.g., 413 Payload Too Large or 400 Bad Request) instead of allowing the application to crash.

• Enable Type Checking: Optionally, enable stricter validation or type checking for incoming JSON payloads to ensure data consistency and reduce application vulnerabilities.

• Review Default Settings: Verify and document all default settings of the express.json() middleware to ensure alignment with best practices for security and performance.