fix: harden Pi management readiness

frontend/src/shell/WorkspacePublishDialog.test.tsx

@@ -43,14 +43,14 @@ const diagnosticsBranchConflict: WorkspaceConflict = {
 };
 
 beforeEach(() => {
-  server.use(http.post("http://localhost:8787/workspaces/validate", () => HttpResponse.json({ workspace, contract: {} })));
+  server.use(http.post("/api/workspaces/validate", () => HttpResponse.json({ workspace, contract: {} })));
 });
 
 test("validates a draft and requires a separate confirmation before publishing", async () => {
   const user = userEvent.setup();
   const published = vi.fn();
   let publishCalls = 0;
-  server.use(http.post("http://localhost:8787/workspaces/publish", () => {
+  server.use(http.post("/api/workspaces/publish", () => {
     publishCalls += 1;
     return HttpResponse.json({ revision: { id: "psd-clinical", commit: "c".repeat(40), blob: "d".repeat(40), snapshotPath: "/safe", state: "operational" } });
   }));
@@ -71,7 +71,7 @@ test("validates a draft and requires a separate confirmation before publishing",
 test("shows a field-level conflict and never overwrites the remote workspace", async () => {
   const user = userEvent.setup();
   let published = false;
-  server.use(http.post("http://localhost:8787/workspaces/publish", () => {
+  server.use(http.post("/api/workspaces/publish", () => {
     published = true;
     return HttpResponse.json({ ...conflict, message: "Workspace changed in the registry." }, { status: 409 });
   }));
@@ -94,7 +94,7 @@ test("saves explicit local choices as a rebased draft and does not republish it"
   const user = userEvent.setup();
   const saved = vi.fn();
   let publishCalls = 0;
-  server.use(http.post("http://localhost:8787/workspaces/publish", () => {
+  server.use(http.post("/api/workspaces/publish", () => {
     publishCalls += 1;
     return HttpResponse.json({ ...conflict, message: "Workspace changed in the registry." }, { status: 409 });
   }));
@@ -116,7 +116,7 @@ test("saves explicit local choices as a rebased draft and does not republish it"
 test("rebases a selected optional diagnostics branch into the revised draft", async () => {
   const user = userEvent.setup();
   const saved = vi.fn();
-  server.use(http.post("http://localhost:8787/workspaces/publish", () => HttpResponse.json({
+  server.use(http.post("/api/workspaces/publish", () => HttpResponse.json({
     ...diagnosticsBranchConflict, message: "Workspace changed in the registry.",
   }, { status: 409 })));
   render(<WorkspacePublishDialog open request={request} onOpenChange={vi.fn()} onPublished={vi.fn()} onResolved={saved} onPull={vi.fn()} onReload={vi.fn()} />);
@@ -135,7 +135,7 @@ test("rebases a selected optional diagnostics branch into the revised draft", as
 
 test("keeps a conflict open and redacts a failed registry pull", async () => {
   const user = userEvent.setup();
-  server.use(http.post("http://localhost:8787/workspaces/publish", () => HttpResponse.json({
+  server.use(http.post("/api/workspaces/publish", () => HttpResponse.json({
     ...conflict, message: "Workspace changed in the registry.",
   }, { status: 409 })));
   render(<WorkspacePublishDialog open request={request} onOpenChange={vi.fn()} onPublished={vi.fn()} onResolved={vi.fn()} onPull={vi.fn().mockRejectedValue(new Error("token=secret"))} onReload={vi.fn()} />);