• This update makes #[sql], #[py_sql], and #[html_sql] emit located compile errors instead of panicking.
• html_sql template errors now show rustc-style code frames (line/column, source line, caret, fix hint) for nodes, attributes, and expressions.
• py_sql avoids faking template line numbers.
• Valid templates and runtime behavior are unchanged.
• The old panicking APIs remain as compatibility wrappers.