Fix execution workspace company routing

Co-Authored-By: Paperclip <noreply@paperclip.ing>

ui/src/App.tsx

@@ -343,6 +343,7 @@ export function App() {
           <Route path="projects/:projectId/workspaces" element={<UnprefixedBoardRedirect />} />
           <Route path="projects/:projectId/workspaces/:workspaceId" element={<UnprefixedBoardRedirect />} />
           <Route path="projects/:projectId/configuration" element={<UnprefixedBoardRedirect />} />
+          <Route path="execution-workspaces/:workspaceId" element={<UnprefixedBoardRedirect />} />
           <Route path="tests/ux/runs" element={<UnprefixedBoardRedirect />} />
           <Route path=":companyPrefix" element={<Layout />}>
             {boardRoutes()}

ui/src/lib/company-routes.test.ts

@@ -0,0 +1,23 @@
+import { describe, expect, it } from "vitest";
+import {
+  applyCompanyPrefix,
+  extractCompanyPrefixFromPath,
+  isBoardPathWithoutPrefix,
+  toCompanyRelativePath,
+} from "./company-routes";
+
+describe("company routes", () => {
+  it("treats execution workspace paths as board routes that need a company prefix", () => {
+    expect(isBoardPathWithoutPrefix("/execution-workspaces/workspace-123")).toBe(true);
+    expect(extractCompanyPrefixFromPath("/execution-workspaces/workspace-123")).toBeNull();
+    expect(applyCompanyPrefix("/execution-workspaces/workspace-123", "PAP")).toBe(
+      "/PAP/execution-workspaces/workspace-123",
+    );
+  });
+
+  it("normalizes prefixed execution workspace paths back to company-relative paths", () => {
+    expect(toCompanyRelativePath("/PAP/execution-workspaces/workspace-123")).toBe(
+      "/execution-workspaces/workspace-123",
+    );
+  });
+});

ui/src/lib/company-routes.ts

@@ -6,6 +6,7 @@ const BOARD_ROUTE_ROOTS = new Set([
   "org",
   "agents",
   "projects",
+  "execution-workspaces",
   "issues",
   "routines",
   "goals",