fix create_representation: enrich files with id+path required by AYON

src/ayon_mcp/client.py

@@ -239,13 +239,25 @@ class AyonClient:
         name: str,
         files: list[dict],
     ) -> dict:
-        """files: [{"name": "BaseColor.png", "size": 12345}, ...]"""
+        """files: [{"name": "BaseColor.png", "size": 12345}, ...]
+        
+        Files are enriched with required 'id' (UUID) and 'path' fields.
+        """
+        import uuid
+        enriched = []
+        for f in files:
+            enriched.append({
+                "id": uuid.uuid4().hex,
+                "name": f.get("name", f.get("path", "file")),
+                "path": f.get("path", f"/tmp/{f.get('name', 'file')}"),
+                "size": f.get("size", 0),
+            })
         r = self._client.post(
             f"/api/projects/{project}/representations",
             json={
                 "name": name,
                 "versionId": version_id,
-                "files": files,
+                "files": enriched,
             },
         )
         r.raise_for_status()