treat `simp?` and `simp!` like `simp`

server/leanserver/GameServer/FileWorker.lean

@@ -76,6 +76,7 @@ partial def findForbiddenTactics (inputCtx : Parser.InputContext) (levelParams :
     -- ignore syntax elements that do not start with a letter
     -- and ignore "with" keyword
     if 0 < val.length ∧ val.data[0]!.isAlpha ∧ val != "with" ∧ val != "at" then
+      let val := val.dropRightWhile (fun c => c == '!' || c == '?') -- treat `simp?` and `simp!` like `simp`
       match levelParams.tactics.find? (fun t => t.name.toString == val) with
       | none => addErrorMessage info s!"You have not unlocked the tactic '{val}' yet!"
       | some tac =>