Make publishApiPost method outputs consistent

[fernand0]

The publishApiPost methods across different modules return inconsistent values (e.g.,
sometimes a boolean, sometimes a string, sometimes a tuple). This should be refactored to
ensure a consistent return format for better error handling and predictability.

Tasks:

• Analyze the return values of publishApiPost in all modules.
• Define a standard return format (e.g., a tuple (success: bool, result: str)).
• Refactor all publishApiPost methods to adhere to the new format.