codegen: resync gen/ from EF 9d004be0

[heygen-rui-bot]

Auto-generated PR: a production deploy shipped an updated OpenAPI spec. This PR contains the CLI command definitions regenerated from the now-live prod spec in gen/.

What changed

Removed commands

• heygen model videos create -- was POST /v3/models/videos
• heygen model videos get -- was GET /v3/models/videos/{video_id}

A changed command name is a public interface change: each rename or removal needs a deprecated alias in cmd/heygen/aliases.go before this merges.

Public command surface only; commands hidden from --help are not listed.
Compared against heygen-cli main at aeaeac04e726c9a246f3957f1fa74461b9e05c6c.

If CI fails (e.g. missing examples), fix the issue and push to this branch.

Source commit: 9d004be001098138e064d24939c359d482126e07
Triggered by: https://github.com/heygen-com/experiment-framework/commit/9d004be001098138e064d24939c359d482126e07

[github-actions]

Command surface: 2 command(s) REMOVED — read before merging

Removed — every script calling these breaks. Re-register the old path in cmd/heygen/aliases.go or call it out in the release notes.

• heygen model videos create
• heygen model videos get

_{Reference only, never blocking. See RELEASE.md "Checking for Regressions" for how to read this.}

[heygen-rui-bot]

Superseded by sync/cli-codegen-e6f48fd0 from EF commit e6f48fd0469da5143293ffa36c0764ec1ca45a56.