codegen: resync gen/ from EF 16599dce (#138)

* codegen: resync gen/ from EF 16599dce

* codegen: add brand-kit examples

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Somansh Reddy Satish <somanshreddy@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: 4 people

codegen/examples/brand-kit.yaml

@@ -0,0 +1,3 @@
+"GET /v3/brand-kits":
+  - desc: "List brand kits"
+    cmd: "heygen brand-kit list"