Ahmed Darrazi
1741b22203
docs: amend constitution to v2.7.0 (LEAN-001 pre-production lean doctrine)
- Add LEAN-001 to constitution after BIAS-001: forbids legacy aliases,
migration shims, dual-write logic, and compatibility fixtures in a
pre-production codebase
- Add compatibility posture default block to spec template
- Add pre-production compatibility check to agent instructions
- Unify backup_set operation type to canonical backup_set.update
- Remove all legacy backup_set.add_policies/remove_policies references
- Add finding ownership semantics (responsibility/accountability labels)
- Clean up roadmap.md and spec-candidates.md