feat: add more case in playground webhook

[googs1025]

What this PR does / why we need it

• add more case in playground webhook

Which issue(s) this PR fixes

Fixes #

Special notes for your reviewer

Does this PR introduce a user-facing change?

None

[googs1025]

        // ModelClaim represents claiming for one model, it's a simplified use case
	// of modelClaims. Most of the time, modelClaim is enough.
	// ModelClaim and modelClaims are exclusive configured.
	// +optional
	ModelClaim *coreapi.ModelClaim `json:"modelClaim,omitempty"`
	// ModelClaims represents claiming for multiple models for more complicated
	// use cases like speculative-decoding.
	// ModelClaims and modelClaim are exclusive configured.
	// +optional
	ModelClaims *coreapi.ModelClaims `json:"modelClaims,omitempty"`

[kerthcet]

/lgtm
/approve
/kind cleanup
Thanks @googs1025