feat: implement MariaDbOperationService for database management and add MariaDB configuration template

config/mariadb.ini.template

@@ -3,8 +3,8 @@ port={{PORT}}
 datadir="{{DATADIR}}"
 tmpdir="{{DATADIR}}"
 socket="{{SOCKET}}"
-character-set-server=utf8mb4
-collation-server=utf8mb4_unicode_ci
+character-set-server=utf8
+collation-server=utf8_unicode_ci
 log-error="{{LOG_FILE}}"
 
 # Performance & Scale Optimizations
@@ -20,5 +20,5 @@ innodb_default_row_format=DYNAMIC
 [client]
 port={{PORT}}
 socket="{{SOCKET}}"
-default-character-set=utf8mb4
+default-character-set=utf8
 max_allowed_packet=1G