Action Effect Spec v0.2.0-draft.1

Additive working draft: opt-in offline-consumer-v1.1 clarifies startup validation and compound-error precedence; the new GitHub issue-comment profile describes a direct, partial effect with explicit downstream unknowns. Core wire version, seven frozen contract files and the original refund corpus remain unchanged. Verified: 64 JavaScript and 115 Python tests, with Linux and macOS CI passing. This is not an adopted standard, certification or production authorization service. Companion integration and reports live in OndCo/Action-Effect-Bench.