[TASK][PROGRAMME.T01] Ratify product invariants and review vocabulary

Parent: #1

Task ID: `PROGRAMME.T01`

## Objective
Ratify product invariants and review vocabulary

## Implementation
Approve persistent workspace ownership, Personal/Original/Evidence separation, explicit local/hybrid modes, bounded agents, trusted authorization and independent verification as non-negotiable integration constraints. Define review-approved separately from implemented and verified.

## Deliverable
Versioned product charter and review-state definitions.

## Verification
Every workstream can identify how its implementation preserves user-owned state and control when inference is unavailable.

## Failure / guardrail
Scope decisions must not quietly remove required feature families or replace persistent applications with transient chat outputs.

## Prerequisite task IDs
None

## Review state
- Review: pending
- Implementation: not started
- No code or PR is part of this issue-creation pass.

Start with parent issue #1 and review the listed integration constraints: persistent workspace ownership, Personal/Original/Evidence separation, local/hybrid modes, bounded agents, trusted authorization, and independent verification. Produce the versioned product charter and review-state definitions, distinguishing approved, implemented, and verified. Done means every workstream can explain how it preserves user-owned state and control when inference is unavailable.

Written by the indexing model from the issue text.