date=2026-04-26
task=nonce_overflow_policy
plan=0
tag=API
result=PASS

All items passed review:
- API-1: PROTOCOL.md and VERSIONING.md document int32 max wrap policy
- API-2: All implementations unified to common int32 max constant with wrap logic
- API-3: Boundary regression tests added for send and sendRequest in all languages

Go and Kotlin compilation not verified locally (no go/JDK in environment); CI required.
