Purpose

Fix case-sensitive query mismatches in the Lucene full-text index.

Lucene normalizes alphanumeric tokens to lowercase when building the index, but PREFIX and WILDCARD queries previously used the original query text directly. As a result, queries could not match indexed lowercase terms.

This change:

• extracts the existing case-normalization logic for reuse;
• normalizes PREFIX query terms before constructing PREFIX Query;
• normalizes each literal segment of WILDCARD Query while preserving * and ?;
• adds unit and integration coverage for uppercase PREFIX and WILDCARD queries.

Tests

• LuceneGlobalIndexTest
• GlobalIndexTest

Generative AI tooling

Generated-by: Codex (GPT-5)