feat: add sorting, click-to-search, and restore access for suspended approvals

-
Sortable columns in All Approvals table (click headers to toggle asc/desc)
-
Click any User/Device/Network/Status cell to populate search and filter
-
Restore Access option for suspended memberships via assign endpoint

src/lib/api.ts

@@ -1584,6 +1584,12 @@ export const api = {
         { method: "POST" }, true, requestConfig,
       ),
 
+    assignAccess: (orgId: string, data: { target_user_id: string; portal_network_id: string; justification?: string }, requestConfig?: RequestConfig) =>
+      request<{ approval: UserNetworkApproval }>(
+        `/organizations/${orgId}/approvals/assign`,
+        { method: "POST", body: JSON.stringify(data) }, true, requestConfig,
+      ),
+
     // ── Memberships ────────────────────────────────────────────────────────────
     listMemberships: (orgId: string, requestConfig?: RequestConfig) =>
       request<{ memberships: DeviceNetworkMembership[]; count: number }>(