Upgrade: New Feature SQLite Sandbox (Copy-on-Chat) & MySQL Transaction

[SumitPatel-HQ]

SQLite Sandbox (Copy-on-Chat) & MySQL Transaction Wrapping + DDL Gate

Check out .FeaturePlans/BigFeaturePlan folder

refere - solution1 md file

QueryCraft_Solution1_SQLite_Sandbox_(Copy-on-Chat).md

refer - solution2 md file

QueryCraft_MySQL_Isolation_v2.md