Add canonical browser support for time ROC

[uriahf]

Summary of Changes

1. Canonical Time ROC Builder (_roc_times_v2_spec_from_performance_data):

   • Added _roc_times_v2_spec_from_performance_data() in src/rtichoke/_viz_spec_v2.py.
   • Uses x = "false_positive_rate" and y = "sensitivity" with [0, 1] axis domains and standard identity reference line.
   • Preserves false_positive_rate, sensitivity, specificity, cutoff, and ppcr without statistical recalculation.
   • Emits operatingPoint metadata for "probability_threshold" or "ppcr".

2. Standalone Browser Support (create_roc_curve_times):

   • Added renderer: str = "plotly" to create_roc_curve_times().
   • Supports "browser" and "rtichoke_viz" opt-in to return RtichokeBrowserChart, while preserving plotly as default.
   • Raises ValueError for unsupported renderers such as "matplotlib".

3. Time Summary Report Insertion (create_summary_report_times):

   • Added ROC (id="roc") to the threshold discrimination group with operating_point_dimension="probability_threshold".
   • Added ROC (id="roc-2") to the PPCR discrimination group with operating_point_dimension="ppcr".

4. Testing & Validation:

   • Added unit and browser execution tests in tests/test_time_roc_v2.py.
   • Updated tests/test_summary_report_times_browser.py to verify threshold and PPCR ROC section inclusion and operating-point metadata.
   • All 306 pytest tests pass. ruff check, ruff format, and ty typecheck passed cleanly.

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PR created automatically by Jules for task 369853476287251879 started by @uriahf

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[github-actions]

PR Preview Action v1.8.1
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2026-09-01 14:51 UTC