feat: add model type mappings for cloud custom nodes (#9392)

## Summary

Adds model-to-node backlinks in `modelToNodeStore.ts` for all
cloud-deployed custom node models that were missing mappings. Without
these, clicking "Use" on a model in the model browser throws an error.

**17 new backlinks added** covering ~340 models across deployed node
packs:

| Category | Directories | Node | Models |
|----------|-------------|------|--------|
| Vision-Language | LLM/Qwen-VL/* (12 specific paths) | AILab_QwenVL /
AILab_QwenVL_PromptEnhancer | ~186 |
| TTS | qwen-tts/* | FB_Qwen3TTSVoiceClone | ~68 |
| Video | SEEDVR2, liveportrait/*, mimicmotion, rife | various | ~33 |
| Depth | depthanything3 | DownloadAndLoadDepthAnythingV3Model | 7 |
| Segmentation | face_parsing, sam3 | various | 4 |
| Diffusers | diffusers/* (Kolors) | DownloadAndLoadKolorsModel | 16 |
| Other | clip/*, dwpose, onnx, detection, UltraShape, sharp | various |
~26 |

**Key fix:** Replaced the top-level `LLM` fallback with specific
`LLM/Qwen-VL/*` paths. The old fallback incorrectly mapped `LLM/llava-*`
models to `AILab_QwenVL`.

Models without deployed node packs (llava/HyVideo, latentsync, sam3d,
sam3dbody, inpaint, vae_approx) are excluded — those are being removed
from `supported_models.json` in Comfy-Org/cloud#2652.

## Test plan
- [ ] Verify "Use" button works for QwenVL models in model browser
- [ ] Verify "Use" button works for TTS, video, depth, segmentation
models
- [ ] Verify no `No node provider registered for category` errors for
deployed models

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: GitHub Action <action@github.com>

src/platform/assets/utils/assetMetadataUtils.test.ts

@@ -228,9 +228,9 @@ describe('assetMetadataUtils', () => {
         expected: 'checkpoints'
       },
       {
-        name: 'extracts last segment from path-style tags',
-        tags: ['models', 'models/loras'],
-        expected: 'loras'
+        name: 'returns full path for path-style tags',
+        tags: ['models', 'diffusers/Kolors/text_encoder'],
+        expected: 'diffusers/Kolors/text_encoder'
       },
       {
         name: 'returns null when only models tag',

src/platform/assets/utils/assetMetadataUtils.ts

@@ -138,8 +138,7 @@ export function getSourceName(url: string): string {
  */
 export function getAssetModelType(asset: AssetItem): string | null {
   const typeTag = asset.tags?.find((tag) => tag && tag !== 'models')
-  if (!typeTag) return null
-  return typeTag.includes('/') ? (typeTag.split('/').pop() ?? null) : typeTag
+  return typeTag ?? null
 }
 
 /**