Integration Seams

Integration seams matter because bijux-proteomics-core is not allowed to explain the whole system by itself. The package has to cooperate with neighbors while staying narrow enough to defend.

Major Seams

• foundation supplies shared ids and schema meaning
• runtime consumes core contracts but should not rewrite them
• intelligence and lab packages build on these rules without owning them

First Proof Check

• code that crosses the seam
• tests that pin the seam behavior
• both handbook branches when the seam changes