085-a-version-pin-is-not-a-contract

A version pin is not a contract

Spec 049's `## Verification` block pins the verdict envelope at the literal `0.3.0`, which spec 071 legitimately moved to `0.4.0`, so `spec-spine verify 056` has been red since 088 merged. The pin was never what 056 required: 056 3.4 states that `--spec` emits the spec 034 envelope with a `verb` token distinguishing it from `compile --check`, and records the bump it performed as a fact about that bump, not as a standing ceiling. A literal pin cannot assert either half, because it goes red for every move the rule permits and stays green for a verb token that collides. This spec declares 049's acceptance replaced and carries the corrected block, without editing 049's file. It is the first of the four follow-ons spec 084 4 named.