codegen: resync gen/ from EF e9aa8a3a

[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

New commands

• heygen avatar looks create -- POST /v3/avatars/looks
• heygen model audio tts create -- POST /v3/models/audio/tts
• heygen model audio voices create -- POST /v3/models/audio/voices
• heygen model audio voices delete -- DELETE /v3/models/audio/voices/{voice_id}
• heygen model audio voices get -- GET /v3/models/audio/voices/{voice_id}
• heygen model audio voices list -- GET /v3/models/audio/voices
• heygen video-translate proofreads delete -- DELETE /v3/video-translations/proofreads/{proofread_id}
• heygen video-translate proofreads list -- GET /v3/video-translations/proofreads

Changed commands

• heygen video-agent create: added --visibility

Public command surface only; commands hidden from --help are not listed.
Compared against heygen-cli main at b791cef1e188d793d3b6ba892de046a073002886.

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

Source commit: e9aa8a3afbc48c5959eb9b7617969d7ee57de022
Triggered by: https://github.com/heygen-com/experiment-framework/commit/e9aa8a3afbc48c5959eb9b7617969d7ee57de022

[github-actions]

Command surface: 1 existing command(s) changed

Changed — these already existed, so a change can break existing calls.

heygen video-agent create

+ 			Name: "visibility",
+ 			Type: "string",
+ 			Default: "team",
+ 			Required: false,
+ 			Enum: []string{"private", "team", "public"},
+ 			Min: nil,
+ 			Max: nil,
+ 			Source: "body",
+ 			JSONName: "visibility",

New commands — additive, nothing existing can break.

• heygen avatar looks create
• heygen model audio tts create
• heygen model audio voices create
• heygen model audio voices delete
• heygen model audio voices get
• heygen model audio voices list
• heygen video-translate proofreads delete
• heygen video-translate proofreads list

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

[heygen-rui-bot]

Superseded by sync/cli-codegen-d3875cc3 from EF commit d3875cc322e9a3a852e5b92ca38574ce4d47df33.