feat(creative)!: make canonical models primary in v7 (#994) #2130

Job	Run time
v3 reference seller — pytest (respx-mocked upstream)	42s
AdCP storyboard runner — examples/multi_platform_seller (PlatformRouter)	1m 51s
Validate schemas are up-to-date	5m 42s
AdCP storyboard runner — examples/seller_agent.py (@adcp/sdk adcp-3.0)	1m 28s
AdCP storyboard runner — v3 reference seller (translator)	2m 13s
Test Python 3.11	6m 14s
Test Python 3.10	6m 18s
Downstream import smoke (representative consumer symbols)	43s
Test Python 3.12	6m 5s
AdCP storyboard runner — examples/seller_agent.py (@adcp/sdk latest)	1m 48s
AdCP storyboard runner — sales-proposal-mode (proposal_finalize)	1m 33s
Postgres conformance tests (Postgres 16)	1m 35s
Test Python 3.13	5m 51s
Validate conventional commit format	-1s
AdCP storyboard runner — examples/seller_agent.py	2s
	42m 4s

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