Add documents page to the compliance portal

Build the Trust Center documents page: a unified list of published
documents, uploaded files, and audit reports, grouped into category
sections. An All/Public/Private tab bar filters the list by trust
center visibility.

Expose that filter over the trust v1 API by adding a
TrustCenterVisibility enum and a shared TrustCenterVisibilityFilter
input, wiring it through the documents, audits, and trustCenterFiles
connections down to the existing coredata SQL filters. "All" keeps the
default public+private slice; the other tabs pin a single visibility.

Access controls are display-only for now (auth is handled separately):
authorized or public entries open their exported PDF via the export
mutations, requested entries show a pending state, and everything else
shows an inert Get Access affordance.

Add the v2 Tabs and Toaster kit components (Base UI headless) needed by
the page and mount a toast provider at the app root for mutation
feedback.

Signed-off-by: Émile Ré <emile@probo.com>

apps/compliance-portal/src/App.tsx

@@ -18,6 +18,8 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
+import { Toast } from "@base-ui/react/toast";
+import { Toaster } from "@probo/ui/src/v2/Toaster/Toaster";
 import { RouterProvider } from "react-router";
 
 import { RelayProvider } from "#/lib/relay/RelayProvider";
@@ -26,7 +28,10 @@ import { router } from "#/routes";
 export function App() {
   return (
     <RelayProvider>
-      <RouterProvider router={router} />
+      <Toast.Provider>
+        <RouterProvider router={router} />
+        <Toaster />
+      </Toast.Provider>
     </RelayProvider>
   );
 }