chore: Move graphKey to LDAIConfigTracker constructor

[jsonbailey]

Summary

• Removes graphKey as an optional parameter from all LDAIConfigTracker tracking methods and the getTrackData() method
• Adds _graphKey as an optional constructor parameter to LDAIConfigTrackerImpl — set once at construction, included automatically in getTrackData() output
• Adds private _agentConfig() helper (matching _completionConfig/_judgeConfig pattern) that accepts graphKey for internal use — ready for agentGraph() when it arrives
• resumptionToken getter conditionally includes graphKey; fromResumptionToken restores it at construction
• agentConfig() and agentConfigs() now route through _agentConfig() internally

Test plan

• LDAIConfigTrackerImpl.test.ts: graphKey tests updated to pass at construction; 4 new resumption token round-trip tests
• LDAIClientImpl.test.ts: agent config tests updated
• Run full test suite in dev container

🤖 Generated with Claude Code

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Note

Medium Risk
This is a breaking API change for any callers passing graphKey into tracker methods and could cause compilation/runtime issues until downstream code is updated. Tracking payload shape and resumption-token contents change, which may affect analytics expectations or consumers.

Overview
graphKey handling is refactored from per-call to per-tracker. The LDAIConfigTracker API removes the optional graphKey parameter from getTrackData() and all track* methods; LDAIConfigTrackerImpl now accepts an optional graphKey in its constructor and automatically includes it in emitted tracking payloads.

Tracker resumption is updated to round-trip graphKey: resumptionToken conditionally encodes it and fromResumptionToken() restores it. LDAIClientImpl threads an optional graphKey into tracker creation by extending _evaluate() and adding an internal _agentConfig(..., graphKey?) helper, with tests updated/added accordingly.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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