feat: infer_schema() support TSV

[KKould]

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Summary

• fixes: fix(bendpy): infer_schema does not support TSV format, breaking register_tsv() #19450

Infer schema now supports TSV by reusing the existing CSV parsing logic, enabling seamless schema inference for tab-separated files.

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

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This change is 

[bohutang]

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