Fix hover window "Add to Watch" parameter order bug

Fixed the bug where adding a variable to watch from hover window would incorrectly use "hover" as the variable name instead of the actual expression name. The issue was in run_hover() passing parameters in wrong order to variables.createRef().

Changed: variables.createRef(res, "hover")
To: variables.createRef(res, expression, "hover")

This now matches the correct implementation used in run_watch().

Co-authored-by: sumneko <5213431+sumneko@users.noreply.github.com>

Author: Copilot

extension/script/backend/worker/evaluate.lua

@@ -39,7 +39,7 @@ local function run_hover(frameId, expression)
     if not ok then
         return false, res
     end
-    local var = variables.createRef(res, "hover")
+    local var = variables.createRef(res, expression, "hover")
     var.result = var.value
     var.value = nil
     return true, var