Add ability to use hx creds if api key not provided #72

Bugbot Review

Bugbot Analysis Progress (9m 49s elapsed)

✅ Gathered PR context (2s)
✅ Completed bug detection (9m 44s)
✅ Posted analysis results (4s)

Final Result: Bugbot completed review and found 1 potential issue. 1 previously reported issue remain unresolved.

Request ID: serverGenReqId_d1f95199-acdf-4f59-935d-c9ac1b448c56

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

There are 2 total unresolved issues (including 1 from previous review).

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