chore(csharp): seal minimal custom code (BodyContent unwrap + TaxRate double) Re-seal the C# custom-code tracking file against the corrected generator (zero FIXME, valid XML doc comments). base..integrated is exactly the two genuine custom fixes from PR #47 (3 files), with repo extras (CHANGELOG, examples) preserved.

chore(csharp): seal minimal custom code (BodyContent unwrap + TaxRate double) Re-seal the C# custom-code tracking file against the corrected generator (zero FIXME, valid XML doc comments). base..integrated is exactly the two genuine custom fixes from PR #47 (3 files), with repo extras (CHANGELOG, examples) preserved. #543