fix: auto commit of ddl not work when calling procedure in transaction

[SkyFan2002]

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Summary

1. By design, if a DDL statement is executed while a transaction is active, the DDL statement will implicitly commits the active transaction. This pr supports this behavior when ddl is in a procedure.
2. Add stored procedure tests covering transaction scenarios including rollback behavior, snapshot management, merge operations, deduplication labels, and multi-procedure transactions.

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