feat(happ): add routing editor, optional ad blocking, and LAN bypass preset (#6545)

* feat(happ): make ad blocking optional in routing presets

Add an independent AdBlock toggle for Iran, China, and global presets, applied only when generating routing rules. Update the China preset to Bypass-CN and cover preset behavior and localized controls.

* feat: add visual routing editor with JSON support and localization updates

- Implemented a new modal for editing routing profiles with basic and advanced tabs.
- Added functionality to load, parse, and generate routing profiles in JSON format.
- Enhanced user experience with validation and error handling for JSON input.
- Updated translations for Russian, Turkish, Ukrainian, Vietnamese, Chinese (Simplified and Traditional) to include new routing editor terms.
- Created helper functions for managing routing profiles and generating deep links.
- Added unit tests for routing editor functionalities and JSON handling.

* feat: update routing editor to preserve null lists in profiles and enhance validation messages

frontend/src/schemas/happRouting.ts

@@ -0,0 +1,16 @@
+import { z } from 'zod';
+
+// Extensions belong to the Happ client and must survive a trip through this editor.
+export const HappRoutingProfileSchema = z
+  .object({
+    // The backend treats null lists as absent; preserve them until explicitly edited.
+    DirectSites: z.array(z.string()).nullish(),
+    DirectIp: z.array(z.string()).nullish(),
+    ProxySites: z.array(z.string()).nullish(),
+    ProxyIp: z.array(z.string()).nullish(),
+    BlockSites: z.array(z.string()).nullish(),
+    BlockIp: z.array(z.string()).nullish(),
+  })
+  .catchall(z.unknown());
+
+export type HappRoutingProfile = z.infer<typeof HappRoutingProfileSchema>;