Activity Tracker Generator

[GenerateActivityTracker] emits a named ActivityTracker factory for applications that want tracker gates declared at compile time.

[GenerateActivityTracker(FactoryMethodName = "CreateGenerated", TrackerName = "dashboard-loading")]
public static partial class GeneratedDashboardActivityTracker;

The generated factory returns the normal runtime tracker:

var tracker = GeneratedDashboardActivityTracker.CreateGenerated();
using var lease = tracker.Track("inventory", "REQ-100");

Diagnostics:

ID	Meaning
PKAT001	The host type must be partial.
PKAT002	FactoryMethodName and TrackerName must be non-empty.