docs: audit and tidy legacy agent workspaces and historical records

docs/DOCUMENTATION_MIGRATION.md

@@ -43,6 +43,10 @@ See [Platform Overview](PLATFORM_OVERVIEW.md) for terminology.
 - `docs/tenants/kittisak.com/brand-identity.md`
 - `docs/tenants/kittisak.com/integrations.md`
 - `docs/tenants/kittisak.com/user-flows.md`
+- `ORIGINAL_REQUEST.md`
+- `RESUME_PORTFOLIO_MARKETING_DEV.md`
+- `.agents/README.md`
+- `.agents/ORIGINAL_REQUEST.md`
 
 These documents now introduce DBK Platform before mentioning HomAroma and explain
 the platform/tenant boundary.