feat: trash (soft delete) with admin tool management

- tools: add deletedAt/deletedBy, soft delete via DELETE /tools/:id when
  actor has trash entitlement, else immediate hard delete
- trash endpoints: GET /tools/trash, POST /tools/trash (admin bulk),
  POST /tools/trash/restore, DELETE /tools/trash, POST /tools/trash/empty
- trash feature for premium/enterprise; exclude trashed from all public
  surfaces (browse, categories, features, tags, similar, ratings, costs,
  analytics, redundancy)
- TRASH_RETENTION_DAYS env (0 = keep forever) with hourly purge job
- frontend: /trash page (premium+, restore for all, permanent delete +
  empty for admin), admin Tools tab with multi-select bulk trash,
  sidebar Trash link, tool-detail delete hint

artifacts/toolrate/src/App.tsx

@@ -12,6 +12,7 @@ import ToolEdit from "@/pages/tool-edit";
 import Analytics from "@/pages/analytics";
 import Admin from "@/pages/admin";
 import Redundancy from "@/pages/redundancy";
+import Trash from "@/pages/trash";
 import Login from "@/pages/login";
 import NotFound from "@/pages/not-found";
 
@@ -36,6 +37,7 @@ function Router() {
       <Route path="/analytics" component={Analytics} />
       <Route path="/admin" component={Admin} />
       <Route path="/admin/redundancy" component={Redundancy} />
+      <Route path="/trash" component={Trash} />
       <Route component={NotFound} />
     </Switch>
   );