Migrate product status checks alongside product writes.

Search for productstatuses, diagnostics wrappers, QA scripts, support dashboards, notebooks, and old product ID parsing.

Tie status-read migration to the same product, data source, and product ID evidence used for writes.

Test status checks against migrated products with real disapproval, limited-product, and warning cases.

Mark product status blockers independently from product write blockers so support tools do not hide deprecated dependencies.

Use NOT_VERIFIED for questionnaire-only status visibility claims until live validation exists.