Fix hypercylindrical integration bounds and point conditioning

[FlorianPfaff]

Summary

Fix two edge cases in AbstractHypercylindricalDistribution:

• reject malformed or reversed static numerical integration intervals instead of forwarding them to SciPy, where reversed limits can produce negative probability mass;
• preserve the single-point interpretation of a 1-D multidimensional periodic query after conditioning on the linear component, avoiding a column_stack row mismatch.

The conditioning helper also normalizes the analogous multidimensional linear-point shape before stacking for consistency.

Regression coverage

Adds focused tests for:

• wrong integration-boundary count;
• reversed integration boundaries;
• single multidimensional periodic points after condition_on_linear;
• single multidimensional linear points after condition_on_periodic.

This mirrors the integration-bound contract already enforced for linear and hypertoroidal distributions.

[github-actions]

✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Max errors	Warnings	Elapsed time
✅ COPYPASTE	jscpd	yes		no		no	7.46s
✅ JSON	prettier	7	0	0		0	0.82s
✅ JSON	v8r	7		0		0	3.74s
✅ MARKDOWN	markdownlint	68	0	0		0	2.26s
✅ MARKDOWN	markdown-table-formatter	68	0	0		0	0.51s
✅ PYTHON	black	2013	27	0		0	58.87s
✅ PYTHON	isort	2013	43	0		0	2.77s
✅ REPOSITORY	betterleaks	yes		no		no	1.53s
✅ REPOSITORY	checkov	yes		no		no	34.27s
✅ REPOSITORY	git_diff	yes		no		no	0.13s
✅ REPOSITORY	secretlint	yes		no		no	99.94s
✅ REPOSITORY	syft	yes		no		no	2.75s
✅ REPOSITORY	trivy-sbom	yes		no		no	2.63s
✅ YAML	prettier	11	0	0		0	0.68s
✅ YAML	v8r	11		0		0	16.19s
✅ YAML	yamllint	11		0		0	0.81s

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