…mes, adjust data types for various fields, and improve schema consistency

…, and battle management; update Dockerfile to include the new SQL script

… NULL

…layer, world, city, and building identifiers

…red procedures in create_get_procedures.sql

This reverts commit 8df5335.

…eate_get_procedures.sql

…rs in create_get_procedures.sql"

This reverts commit ce0316e.

…d type in create_tables.sql

…ns for MariaDB directories

…al fields and update default world_status value

…ssions for SQL files and MariaDB directories

… for improved security

… table schema

…ow null seed values

…t_cities_in_world procedure for improved clarity and functionality

…ame for battle_id