feat: move the classic layout into its own bundled plugin

src/backend/tests/database/routes/plugins.test.ts

@@ -169,6 +169,7 @@ const manageMock = vi.hoisted(() => ({
   updatePlugin: vi.fn(),
   updateAllPlugins: vi.fn(),
   uninstallPlugin: vi.fn(),
+  restoreBundledPlugin: vi.fn(),
   setPluginOptions: vi.fn(),
   setAllPluginChannels: vi.fn(),
   getPluginDataSummary: vi.fn(),
@@ -1141,6 +1142,35 @@ describe("plugins route", () => {
       expect(manageMock.uninstallPlugin).toHaveBeenCalledWith("docker");
     });
 
+    it("restores the bundled copy", async () => {
+      manageMock.restoreBundledPlugin.mockResolvedValue({
+        id: "docker",
+        version: "1.0.0",
+        state: "active",
+      });
+      const res = await post("/plugins/docker/restore-bundled");
+      expect(res.status).toBe(200);
+      expect(await res.json()).toEqual({
+        id: "docker",
+        version: "1.0.0",
+        state: "active",
+      });
+      expect(manageMock.restoreBundledPlugin).toHaveBeenCalledWith("docker");
+    });
+
+    it("answers 409 when a plugin has no bundled copy", async () => {
+      manageMock.restoreBundledPlugin.mockRejectedValue(
+        new PluginManageError(
+          "This plugin has no bundled copy",
+          409,
+          "NO_BUNDLED_COPY",
+        ),
+      );
+      const res = await post("/plugins/docker/restore-bundled");
+      expect(res.status).toBe(409);
+      expect((await res.json()).code).toBe("NO_BUNDLED_COPY");
+    });
+
     it("refuses changes on a linked desktop", async () => {
       manageMock.isLinkedDesktop.mockResolvedValue(true);
       const res = await post("/plugins/docker/install");