Fix: Refactor and standardize function names

Refactor code by standardizing function names with consistent capitalization across the codebase to improve readability and maintainability. This involves changing the function names to use PascalCase instead of snake_case or mixed casing, ensuring improved alignment with Go naming conventions. Additionally, redundant Content-Type headers were removed to clean up the code. This refactoring effort enhances code clarity and consistency without altering existing functionality.

Signed-off-by: Christian Roessner c@roessner.co