Introduces GET /users/:id endpoint with validation schema, adds tests for user and register routes, and applies security middlewares (helmet, hpp, cors) to the server. Also adds ESLint configuration and updates logger with linting comments.
Introduces dynamic route parameter support in route path computation and schema matching. Adds a utility for sending validation errors, updates schema definitions to support header validation, and refactors server middleware to handle header, body, and query validation with improved error handling. Also adds a placeholder user route and updates dependencies to include 'path-to-regexp'.