refactor: replace overloaded surface terminology

packages/workflow/workflow/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/workflow/workflow/README.md
-README.md: 0de661423206cc71eb4669bc8ddb2419202bcb4a
+README.md: 78e9e662f378c88b6790d128fefd6c01f3928bd6
 README.zh.md: 62abd00c013d054f4111a2db2ce72c58d3514087

packages/workflow/workflow/README.md

@@ -56,4 +56,4 @@ No direct invalidation; the named consumer owns any request-prefix changes.
 - **No token-budget vocabulary** — engines cap concurrency, items, and children, but neither the request nor result accounts for model tokens across children.
 - **Runs are holder-owned, not service-tracked** — unloading the engine does not discover independent live handles; every consumer must dispose the run it started.
 
-See the [dynamic-workflows Agent Note](../../../.agents/notes/implemented/feature/2026-07-05-dynamic-workflows.md) for the deferred workflow surface.
+See the [dynamic-workflows Agent Note](../../../.agents/notes/implemented/feature/2026-07-05-dynamic-workflows.md) for the deferred workflow API.

packages/workflow/workflow/tests/workflow.spec.ts

@@ -123,7 +123,7 @@ describe('dsh-workflow (interface)', () => {
     expect(String(warn.mock.calls[0]![0])).toContain('[unrenderable thrown value]')
   })
 
-  it('has the expected export surface (default = the abstract service class)', () => {
+  it('has the expected exports (default = the abstract service class)', () => {
     expect(WorkflowServiceDefault).toBe(WorkflowService)
   })
 })