Fix royin romanization for Thai consonant clusters and syllable boundaries#1172

Merged

wannaphong merged 7 commits intodevfrom

copilot/fix-romanization-issues

Jan 6, 2026

Commits on Jan 6, 2026

Initial plan
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committed
Fix royin romanization engine for consonant clusters and syllable boundaries

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wannaphong
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Add previously failing test cases to BASIC_TESTS - all now pass

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wannaphong
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Enable more consistency tests that now pass

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wannaphong
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Refactor code based on review feedback: add comments and extract helper function

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wannaphong
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Final code quality improvements: extract vowel constant and add romanization in comments

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Update test expectation for lookup fallback after royin improvements

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wannaphong
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