Fix Evidence submission after refreshing Context

[piaro]

Problem and change

Adding Evidence and refreshing Context before submission made the Evidence require its own digest, causing evidence-backed outcome requires an Evidence Record. The input matcher now treats Evidence for the same Change and Requirement as verification outputs while continuing to validate all dependencies captured when the Evidence was created.

This allows truthful unsatisfied and inconclusive outcomes to be submitted without a commit. Regression tests cover single and multiple Evidence Records, refreshing between additions, and rejection when code, Contract, Decision, Change, or a recorded Evidence dependency changes. The Builder skill and English/Japanese documentation describe the workflow. Record formats and CLI arguments are unchanged.

Addresses #22 (comment)

Validation

• cargo fmt --check
• cargo clippy --all-targets --locked -- -D warnings
• cargo test --locked
• sh scripts/tests/test-rust.sh

All checks passed. Network tests were rerun outside the sandbox because it blocks local listeners.