refactor: consolidate upload helpers

lib/prepare-git-assets.ts

@@ -1,11 +1,7 @@
 import { compressTextureBuffer } from '@/lib/texture-compression'
 import { classifyAssetCategory } from '@/lib/asset-classification'
-import type { ParsedFile, PreparedAssetSummary } from '@/lib/types'
-
-interface PushFile {
-  path: string
-  contentBase64: string
-}
+import { getModelAssetPath } from '@/lib/model-paths'
+import type { ParsedFile, PreparedAssetSummary, PushFile } from '@/lib/types'
 
 interface PrepareGitAssetsParams {
   folderName: string
@@ -61,7 +57,7 @@ export async function prepareGitAssets({
     }
 
     filesToPush.push({
-      path: `public/models/${folderName}/${pf.filename}`,
+      path: getModelAssetPath(folderName, pf.filename),
       contentBase64: content.toString('base64'),
     })
   }