Normalizes path to prevent path traversal with "/./"

[bitterpanda63]

Summary by Aikido

Security Issues: 0	🔍 Quality Issues: 1	Resolved Issues: 0

⚡ Enhancements

• Normalized paths to remove '/./' sequences and collapse slashes.

🔧 Refactors

• Replaced ensureOneLeadingSlash with private normalizePath and imports and adjusted callers accordingly.

^{More info}

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...nerabilities/path_traversal/UnsafePathChecker.java	88.88%	0 Missing and 1 partial ⚠️

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