refactor(navigation): consolidate navigation with href helpers and extract push device hook

- Migrate all navigation calls from magic strings to centralized href helpers
- Extract inline device registration logic into useRegisterPushDevice hook
- Remove unused terms and privacy policy routes from profile stack
- Add hrefTradeDetail helper for trade detail navigation
- Restore routePayloadCache.stashSystemMessage for group request/invite handling
- Change desktop shell tab navigation from replace to push

src/hooks/useRegisterPushDevice.ts

@@ -0,0 +1,29 @@
+import { useEffect, useRef } from 'react';
+import { Platform } from 'react-native';
+
+import { jpushService } from '../services/notification/jpushService';
+
+export function useRegisterPushDevice(isAuthenticated: boolean, userID?: string) {
+  const deviceRegistered = useRef(false);
+
+  useEffect(() => {
+    if (Platform.OS === 'web' || !isAuthenticated || !userID) return;
+
+    if (!deviceRegistered.current) {
+      deviceRegistered.current = true;
+
+      jpushService.initialize().then((ok) => {
+        if (ok && userID) {
+          jpushService.setAliasForUser(userID);
+        }
+      });
+    }
+
+    return () => {
+      if (!isAuthenticated) {
+        deviceRegistered.current = false;
+        jpushService.cleanup();
+      }
+    };
+  }, [isAuthenticated, userID]);
+}