Speed up Werka status breakdown and detail views

[WIKKIwk]

Goal

Speed up Werka status breakdown and status detail views using the new fast-read strategy.

Scope

• pending / confirmed / returned breakdown views
• detail lists behind each breakdown bucket
• pagination-ready endpoints where needed

Why

These are classic browse-heavy read surfaces and should benefit directly from the same architecture shift that improved pickers.

Acceptance criteria

• status pages open quickly
• supplier/detail drill-down is responsive
• large result sets are paginated instead of preloaded
• tests pass