Refactor checkbox condition logic with new operators

- Replace legacy 'equals' and 'does_not_equal' checkbox operators with 'is_checked' and 'is_not_checked'
- Update FormLogicConditionChecker in PHP and JavaScript to handle new operators
- Modify open_filters.json to reflect new checkbox comparator structure
- Add migration logic in ColumnCondition.vue to support legacy operator conversion
- Improve checkbox condition handling with explicit true/false checks

client/lib/forms/FormLogicConditionChecker.js

@@ -332,10 +332,15 @@ function numberConditionMet(propertyCondition, value) {
 
 function checkboxConditionMet(propertyCondition, value) {
   switch (propertyCondition.operator) {
+    case "is_checked":
+      return value === true
+    case "is_not_checked":
+      return value === false
+    // Legacy operators
     case "equals":
-      return checkEquals(propertyCondition, value)
+      return value === true
     case "does_not_equal":
-      return !checkEquals(propertyCondition, value)
+      return value === false
   }
   return false
 }