Function handle_deploy_run 

pub async fn handle_deploy_run(
    project_path: PathBuf,
    service_path: PathBuf,
    service_name: Option<String>,
    provider: Option<String>,
    region: Option<String>,
    machine_type: Option<String>,
    port: Option<u16>,
    is_public: bool,
    cpu: Option<String>,
    memory: Option<String>,
    min_instances: Option<i32>,
    max_instances: Option<i32>,
    env_vars: Vec<String>,
    secrets: Vec<String>,
    env_file: Option<PathBuf>,
) -> Result<String>

Handle deploy run — triggers actual deployment.