feat(blockly): Phase C Step 6 COMPLETE - Property panel Edit Blocks button

Implemented custom property editor for Logic Builder workspace:
- Created LogicBuilderWorkspaceType with styled button UI
- Added editorType='logic-builder-workspace' to node definition
- Registered LogicBuilderWorkspaceType in Ports.ts mapping
- Button emits LogicBuilder.OpenTab event with node details
- Integrated with existing property panel system

Next: Step 7 - Code generation and port detection

packages/noodl-runtime/src/nodes/std-library/logic-builder.js

@@ -203,7 +203,8 @@ const LogicBuilderNode = {
       group: 'General',
       type: {
         name: 'string',
-        allowEditOnly: true
+        allowEditOnly: true,
+        editorType: 'logic-builder-workspace'
       },
       displayName: 'Workspace',
       set: function (value) {