docs: add architect role and template workflows

README.md

@@ -5,6 +5,7 @@ This repository is a source template for running coordinated AI assistant roles
 It provides a baseline operating model for:
 
 - PM (planning and gate ownership)
+- AM (architecture and system design stewardship)
 - CM (implementation and technical validation)
 - SM (security review and risk framing)
 - OM-Test / OM (runtime and operational validation)
@@ -34,6 +35,8 @@ Use this sequence immediately after creating a downstream project from this temp
 3. Open the first milestone plan from [minions/plans](minions/plans).
 4. Create and use the current daily thread in [minions/chat](minions/chat).
 5. Initialize and maintain ROADMAP.md, TODO.md, and CHANGELOG.md.
+6. Establish a vendored template snapshot and perform the first controlled export using [docs/downstream-onboarding-playbook.md](docs/downstream-onboarding-playbook.md).
+7. Use [docs/downstream-upgrade-playbook.md](docs/downstream-upgrade-playbook.md) for later template updates.
 
 ## Core Files
 
@@ -41,6 +44,9 @@ Use this sequence immediately after creating a downstream project from this temp
 - [MEMORY.md](MEMORY.md): shared truth and baseline guardrails
 - [minion-version.md](minion-version.md): template/downstream versioning format
 - [docs/collaboration-playbook.md](docs/collaboration-playbook.md): high-level operating pattern
+- [docs/downstream-onboarding-playbook.md](docs/downstream-onboarding-playbook.md): PM-owned initial downstream export workflow
+- [docs/downstream-upgrade-playbook.md](docs/downstream-upgrade-playbook.md): PM-owned downstream upgrade workflow
+- [docs/export-manifest.md](docs/export-manifest.md): per-file export and merge strategy
 - [minions/roles](minions/roles): role charters
 - [minions/plans](minions/plans): formal planning artifacts
 - [minions/chat](minions/chat): durable conversation threads