Function record_devx_usage 

pub async fn record_devx_usage(
    workspace_id: Option<String>,
    org_id: Option<String>,
    metric_name: &str,
    metric_value: Value,
)

Record a DevX pillar usage event

This should be called when:

• SDK is installed/used
• Client code is generated
• Playground session starts
• CLI command is executed