Add trigger for audit log

[MisakaVan]

This pull request introduces a comprehensive auditing system for database changes and enhances the script execution framework to support both DDL and trigger scripts. The most significant changes include the addition of an AuditLog table, new triggers for auditing changes in key tables, and updates to the script execution logic to handle triggers separately.

Auditing System Enhancements:

• AuditLog Table: Added a new table AuditLog to store detailed records of data changes, including the operation type, affected table, primary key value, old and new values, and user ID responsible for the change. This table is designed to support auditing across multiple tables. (src/backend/sql/ddl/014_create_audit_log_table.sql, src/backend/sql/ddl/014_create_audit_log_table.sqlR1-R18)

• Triggers for Auditing:

  • Added triggers for the User table to log INSERT, UPDATE, and DELETE operations, capturing both old and new values where applicable. (src/backend/sql/trigger/001_user_audit.sql, src/backend/sql/trigger/001_user_audit.sqlR1-R141)
  • Added similar triggers for the UserSession table to track session-related changes. (src/backend/sql/trigger/002_user_session_audit.sql, src/backend/sql/trigger/002_user_session_audit.sqlR1-R131)
  • Added triggers for the ShippingAddress table to audit changes to address records. (src/backend/sql/trigger/003_shipping_address_audit.sql, src/backend/sql/trigger/003_shipping_address_audit.sqlR1-R126)

Script Execution Framework Updates:

• Separation of DDL and Trigger Scripts: Updated the script execution logic to distinguish between DDL scripts (ddl_scripts_dir) and trigger scripts (trigger_scripts_dir), allowing for independent execution. (src/backend/scripts/reset.py, [1]; src/backend/scripts/run_all_ddls.py, [2]

• New Flags for Script Execution:

  • Added --no-ddl and --no-trigger flags to the main function, enabling selective execution of DDL and trigger scripts. (src/backend/scripts/run_all_ddls.py, [1] [2] [3]

• Improved Script Handling:

  • Enhanced the execute_sql_script function to support optional splitting of SQL statements, which is useful for handling trigger scripts that require execution as a single block. (src/backend/scripts/run_all_ddls.py, src/backend/scripts/run_all_ddls.pyL12-R49)
  • Updated logging and error handling for better visibility during script execution. (src/backend/scripts/run_all_ddls.py, [1] [2]