Fix invisible workflow graph editor and bundle CE/Roadmap plugins

- WorkflowNodeEditor overlay was missing the `open` class, so the
  graph editor mounted with display:none — clicking the button just
  dismissed the steps view. Add `open` so the overlay renders.
- Add fusion-plugin-compound-engineering and fusion-plugin-roadmap to
  BUILTIN_PLUGINS so they show under Settings → Built-in Plugins.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.changeset/workflow-graph-editor-and-bundled-plugins.md

@@ -0,0 +1,8 @@
+---
+"@runfusion/fusion": patch
+---
+
+Fix the workflow graph editor opening invisibly and bundle the Compound Engineering and Roadmaps plugins.
+
+- The "Graph editor" button now actually shows the editor: its overlay was rendered without the `open` class, leaving it `display: none`, so opening it looked like the workflow steps view was just dismissed.
+- `fusion-plugin-compound-engineering` and `fusion-plugin-roadmap` are now listed in the dashboard's built-in plugins, so they appear under Settings → Built-in Plugins (they were implemented and registered but missing from the list).

packages/dashboard/app/components/PluginManager.tsx

@@ -168,6 +168,20 @@ const BUILTIN_PLUGINS: BuiltinPlugin[] = [
     category: "integration",
     path: "./plugins/fusion-plugin-cli-printing-press",
   },
+  {
+    id: "fusion-plugin-compound-engineering",
+    name: "Compound Engineering",
+    description: "A dedicated dashboard surface for compound-engineering artifacts and interactive ce-* sessions.",
+    category: "integration",
+    path: "./plugins/fusion-plugin-compound-engineering",
+  },
+  {
+    id: "fusion-plugin-roadmap",
+    name: "Roadmaps",
+    description: "Standalone roadmap planning plugin.",
+    category: "integration",
+    path: "./plugins/fusion-plugin-roadmap",
+  },
   {
     id: BUILTIN_AGENT_BROWSER_PLUGIN_ID,
     name: "Agent Browser",

packages/dashboard/app/components/WorkflowNodeEditor.tsx

@@ -305,7 +305,7 @@ function InnerEditor({
   const overlayProps = useOverlayDismiss(onClose);
 
   return (
-    <div className="modal-overlay wf-editor-overlay" {...overlayProps}>
+    <div className="modal-overlay open wf-editor-overlay" {...overlayProps}>
       <div className="modal wf-editor-modal" ref={modalRef} onClick={(e) => e.stopPropagation()}>
         <header className="wf-editor-header">
           <h2>Workflows</h2>