DB/SAI: The Final Code

By @dr-j fixes #3640
DB/Quest: Once More Unto The Breach, Hero progression

By @dr-j fixes #10940
DB/SAI: The Great Hunter's Challenge

By @Polkic fixes #11003
Scripts/HallsOfReflection: Revert 3ffbd27cddbd96d9736e7b22a286cef8f4ab2174

Revert 3ffbd27cddbd96d9736e7b22a286cef8f4ab2174 and PR #10985 , this change doesn't fix any issue and instead breaks the logic of the instance event.