[TASK][PROGRAMME.T06] Establish continuous evaluation and release evidence

Parent: #1

Task ID: `PROGRAMME.T06`

## Proposed implementation
Build EVAL-01 fixtures, blocking security/recovery checks, model/provider version pinning and the anti-wrapper continuity suite. Define evidence artifacts linked to issue/task IDs.

## Done when
CI/evaluation architecture and release evidence schema are reviewable, and verified outcomes are determined independently of agent self-report.

## Guardrail
A high aggregate task score cannot override a failed permission, duplication or privacy invariant.

## Prerequisites
`PROGRAMME.T02`, `PROGRAMME.T03`

Review: pending · Implementation: not started.

Start by reading prerequisites PROGRAMME.T02 and PROGRAMME.T03, then review the parent task #1 and the proposed EVAL-01, security/recovery, version-pinning, continuity, and evidence requirements. Done means the CI/evaluation architecture and release evidence schema are reviewable, with outcomes independently verified and permission, duplication, and privacy invariants enforced.

Written by the indexing model from the issue text.