feat: add removable reference feature vertical slice

tests/unit/boundary-mapper.test.js

@@ -1,52 +1,11 @@
 import { describe, expect, it } from "vitest";
 
-import {
-  mapOperationPayload,
-  mapResourceDto,
-} from "../../src/adapters/http/resource-mapper.js";
-import { toResourceViewModel } from "../../src/application/view-models/resource-view-model.js";
+import { mapOperationPayload } from "../../src/adapters/http/resource-mapper.js";
 
-describe("DTO to model to view-model mapping", () => {
-  it("contains raw DTO names at the HTTP boundary", () => {
-    const model = mapResourceDto({
-      id: "resource-1",
-      name: "Example",
-      createdAt: "2026-07-25T00:00:00.000Z",
-      backendOnly: "not propagated",
-    });
-
-    expect(model).toEqual({
-      id: "resource-1",
-      displayName: "Example",
-      createdAt: "2026-07-25T00:00:00.000Z",
-    });
-    expect(model).not.toHaveProperty("name");
-    expect(model).not.toHaveProperty("backendOnly");
-  });
-
-  it("maps operation payloads and rejects missing mappers", () => {
-    expect(
-      mapOperationPayload("LIST_SAMPLE_RESOURCES", [
-        { id: "resource-1", name: "Example" },
-      ]),
-    ).toEqual([
-      { id: "resource-1", displayName: "Example", createdAt: null },
-    ]);
+describe("platform DTO mapper boundary", () => {
+  it("fails closed when no feature mapper was injected", () => {
     expect(() => mapOperationPayload("UNKNOWN", {})).toThrow(
       "No boundary mapper registered",
     );
   });
-
-  it("projects an application-owned render-ready shape", () => {
-    const model = mapResourceDto({
-      id: "resource-1",
-      name: "Example",
-      createdAt: null,
-    });
-    expect(toResourceViewModel(model)).toEqual({
-      resourceId: "resource-1",
-      title: "Example",
-      createdAtLabel: null,
-    });
-  });
 });