Add missing response models

[evanvolgas]

Summary

Several response models from the core API are missing from the SDK.

Models to add

Extended Asset models

class AssetWithTeam(Asset):
    """Asset with team name included."""
    team_name: str

class AssetWithOwners(Asset):
    """Asset with full owner details."""
    owner_team: Team
    owner_user: User | None

Proposal models

class AffectedAsset(BaseModel):
    """Asset affected by a proposal."""
    id: UUID
    fqn: str
    name: str

class AffectedTeam(BaseModel):
    """Team affected by a proposal."""
    id: UUID
    name: str
    assets: list[AffectedAsset]
    acknowledgment_status: str | None

Acknowledgment models

class AcknowledgmentResponse(BaseModel):
    """Full acknowledgment with team details."""
    id: UUID
    proposal_id: UUID
    team_id: UUID
    team_name: str
    response: AcknowledgmentResponseType
    comment: str | None
    created_at: datetime

Use case

These models are returned by various endpoints and needed for proper type hints.