🔧 chore(config): add system_config_mt_tenant1_insert.sql to gitignore

- exclude system configuration SQL file from version control to prevent sensitive data exposure

.gitignore

@@ -55,3 +55,4 @@ loop.txt
 .nfs*
 tsconfig.tsbuildinfo
 mini/tests/__snapshots__/*
+system_config_mt_tenant1_insert.sql