- Fix getTableName() to handle generic schema_tablename pattern
- Convert schema_tablename to [schema].[tablename] for SQL Server
- Replace hardcoded productionContractData table name with helper function
- Fix variable naming conflict: rename 'sql' to 'sqlString' to avoid shadowing mssql module import
- Apply fixes to discrete-material-plan-dao, materials-to-be-deleted-dao, and bip-users-dao
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>