[Vamsi-2581]

What

Normalize wrapped SE(2) angles that round to the period back to zero for both KD-tree data and query points. This prevents scipy.spatial.cKDTree from rejecting coordinates when a tiny negative angle wraps to the period due to floating-point rounding.

Tests

• Added regression coverage for stored coordinates and query angles at -1e-17, using named SE(2) and a weighted SE(2) metric.
• Tests were not run locally.
• The latest GitHub Actions status shows two workflows awaiting maintainer approval; the required test check is still pending. CI has not validated this head yet.

Fixes #85.

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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🟢 Metrics 6 complexity · 0 duplication

Metric	Results
Complexity	6
Duplication	0

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[huxiaoyi-ovo]

I checked both the stored-angle and query-side wrapping against SciPy's periodic cKDTree, including the default SE2 metric and a weight of 0.3.

The boundary values now map correctly to zero, and both nearest-neighbour and radius queries return the expected vertex. Looks good from the code side.

CI is still waiting for maintainer approval, so that remains to be checked.