Function generate_report 

pub fn generate_report(config: &Config) -> Result<(), Box<dyn Error>>

Generates a report of the server setup.

This function creates a text file report containing details of the server configuration, deployed applications, firewall rules, and system information.

Arguments

• config - A reference to the Config struct containing the server configuration

Returns

Returns Ok(()) if the report is generated successfully, or an error if generation fails.