fix!: Swap track_metrics_of parameter order to match spec

[jsonbailey]

Summary

• Swaps the parameter order of track_metrics_of and track_metrics_of_async so that metrics_extractor is first and the operation callable (func) is second, matching spec requirement AITRACK 1.1.14.1
• Updates all internal call sites (managed_agent.py, managed_model.py, judge/__init__.py)
• Updates tests in test_tracker.py

Breaking change

Any caller passing positional arguments to track_metrics_of or track_metrics_of_async must swap their argument order.

Test plan

• Existing unit tests in test_tracker.py updated and pass
• Verify no other call sites use the old positional order

Closes AIC-2378

🤖 Generated with Claude Code

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Note

Medium Risk
Breaking API change for any callers using positional arguments to track_metrics_of/track_metrics_of_async; incorrect ordering would fail at runtime or mis-track metrics.

Overview
Aligns the public tracking API with the spec by swapping argument order for LDAIConfigTracker.track_metrics_of and track_metrics_of_async so metrics_extractor comes first and the operation callable comes second.

Updates internal invocation sites in ManagedModel, ManagedAgent, and Judge, and adjusts test_tracker.py to use the new positional order.

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