Communication queue item contracts

Verification Boundary

This suite checks communication queue serialization and parsing without dispatch claims, queue publication or provider sending.

What This Suite Proves

The executable case exercises read supported communication queue items and reject malformed versions.

What It Does Not Prove

The suite does not establish the entire feature chain or a fresh execution result. Its retained assertions apply only within the stated dependency boundary.

Real Dependencies and Test Doubles

Queue item construction and parsing are real. No external queue or database is used.

Must Not Be Doubled

The queue item helpers must remain real.