- Fixed `DetectionsSmoother` to work with detections that have no confidence scores
- Changed confidence aggregation to average only the confidence values that are present, leaving confidence as `None` when no values exist
- Fixed smoothing of mixed-confidence tracks (some frames with confidence, some without) while preserving available confidence information
- Fixed crashes when merging smoothed tracks that disagree on confidence availability by normalizing confidence fields before merge
- Added regression coverage for no-confidence, mixed-confidence, multi-track, full-window, and tracker-id-missing scenarios
- Updated documentation and changelog to reflect the new confidence-handling behavior
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Co-authored-by: jirka <6035284+Borda@users.noreply.github.com>
Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com>