fix: display Blueprint badge instead of UUID for global subgraph blueprints (#9048)

## Problem

The node search box badge displays long UUID strings (e.g.,
`comfyui-ltx-video-0fbc55c6-...`) for global/core blueprints, while
user-created subgraphs correctly show "Blueprint" as the badge.


![image](https://github.com/user-attachments/assets/placeholder-before.png)

## Root Cause

In `loadGlobalBlueprint`, global blueprints set `python_module:
v.info.node_pack` which contains UUID-like strings. The
`getNodeSource()` function processes `python_module` to determine badge
text, but UUID strings don't match any known pattern, resulting in ugly
badge text.

## Solution

- Change global blueprints to use `python_module: 'blueprint'` so they
display "Blueprint" badge like user blueprints
- Add `isGlobal` boolean flag to `ComfyNodeDef` schema to distinguish
global from user blueprints
- Update `isGlobalBlueprint()` to check the new `isGlobal` flag instead
of `python_module !== 'blueprint'`

## Changes

| File | Change |
|------|--------|
| `src/schemas/nodeDefSchema.ts` | Add optional `isGlobal?: boolean`
field |
| `src/stores/nodeDefStore.ts` | Add `isGlobal` field to
`ComfyNodeDefImpl` class |
| `src/stores/subgraphStore.ts` | Use `python_module: 'blueprint'` +
`isGlobal: true` for global blueprints; update `isGlobalBlueprint()`
check |

## Testing

- [x] Existing unit tests pass
- [x] TypeScript compiles without errors
- [x] Lint passes

Fixes COM-15168

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9048-fix-display-Blueprint-badge-instead-of-UUID-for-global-subgraph-blueprints-30e6d73d3650813cac27e02f8f2088df)
by [Unito](https://www.unito.io)

src/stores/subgraphStore.test.ts

@@ -177,6 +177,54 @@ describe('useSubgraphStore', () => {
     expect(store.isGlobalBlueprint('nonexistent')).toBe(false)
   })
 
+  describe('blueprint badge display', () => {
+    it('should set isGlobal flag on global blueprints', async () => {
+      await mockFetch(
+        {},
+        {
+          global_bp: {
+            name: 'Global Blueprint',
+            info: { node_pack: 'some-uuid-string' },
+            data: JSON.stringify(mockGraph)
+          }
+        }
+      )
+      const nodeDef = useNodeDefStore().nodeDefs.find(
+        (d) => d.name === 'SubgraphBlueprint.global_bp'
+      )
+      expect(nodeDef).toBeDefined()
+      expect(nodeDef?.isGlobal).toBe(true)
+    })
+
+    it('should not set isGlobal flag on user blueprints', async () => {
+      await mockFetch({ 'user-blueprint.json': mockGraph })
+      const nodeDef = useNodeDefStore().nodeDefs.find(
+        (d) => d.name === 'SubgraphBlueprint.user-blueprint'
+      )
+      expect(nodeDef).toBeDefined()
+      expect(nodeDef?.isGlobal).toBeUndefined()
+    })
+
+    it('should use blueprint python_module for global blueprints to show Blueprint badge', async () => {
+      await mockFetch(
+        {},
+        {
+          global_bp: {
+            name: 'Global Blueprint',
+            info: { node_pack: 'comfyui-ltx-video-0fbc55c6-long-uuid' },
+            data: JSON.stringify(mockGraph)
+          }
+        }
+      )
+      const nodeDef = useNodeDefStore().nodeDefs.find(
+        (d) => d.name === 'SubgraphBlueprint.global_bp'
+      )
+      expect(nodeDef).toBeDefined()
+      expect(nodeDef?.python_module).toBe('blueprint')
+      expect(nodeDef?.nodeSource.displayText).toBe('Blueprint')
+    })
+  })
+
   describe('search_aliases support', () => {
     it('should include search_aliases from workflow extra', async () => {
       const mockGraphWithAliases = {