🧹 [refactor] extract duplicated filter matching logic

[cmuench]

🎯 What: Extracted duplicated regex-based filter parsing logic from buildSearchCriteria and applyLocalSearchCriteria into a new shared helper function parseFilterOption.

💡 Why: This improves maintainability and readability by eliminating code duplication and centralizing filter parsing rules (regex, operator mapping, and wildcard normalization).

✅ Verification: Added new unit tests for applyLocalSearchCriteria to tests/utils.test.js and ran the full test suite (npm test). All 388 tests passed, and code coverage for lib/utils.js increased significantly.

✨ Result: Reduced code duplication and provided a clean, reusable helper for filter parsing across the utility module.

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PR created automatically by Jules for task 13465693477160819443 started by @cmuench

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