Task 531: Verdict Policy Enforcement + Mass Timeline Tests

Status: DONE

Summary

Two small test improvements:

1. Enforce CLAUDE.md verdict policy: "reference" transfers must NOT use "indeterminate" verdict
2. Add mass_compute_timeline jettison-only test — currently only burn+jettison is tested

Tests to Add

Verdict policy (1 test)

• No transfer with verdict "indeterminate" should exist (policy says reference calcs use "reference")

Mass timeline jettison (1 test)

• Jettison-only event: total mass decreases by exactly the jettisoned amount

Impact

Prevents policy regression and improves mass timeline WASM coverage.