refactor(logger): update logger type and enhance setupLogger function

- Changed Logger type from pino.Logger to PinoLogger for consistency.
- Modified setupLogger to accept an optional isGlobal parameter, allowing for more flexible logger initialization.
- Reintroduced serializers in the logger setup for improved logging structure.
- Updated getLogger to return a fresh logger instance when newInstance is true, enhancing request handling.
- Adjusted the global logger initialization to be conditional based on the isGlobal parameter.

test(decorator): add comprehensive parameter options tests

- Introduced a new test suite for parameter options in decorators.
- Implemented tests for various parameter types including string, number, boolean, array, and object.
- Added tests for default values, required parameters, custom validation, and transformation functions.
- Ensured robust handling of edge cases, null values, and direct array inputs.
- Included tests for extracting headers using the @ReqHeader decorator with case insensitivity.

Author: cyber-hari