feat(desktop-client): add settings window and switch default API to production

- Open a dedicated settings BrowserWindow with general / login / diagnostics / about tabs
- Persist openAtLogin and keepRunningInBackground via desktop-settings.json; hide main window instead of quitting when background mode is on
- Default API base URL now points to api.shengxintui.com; LoginView and SettingsView share a single constant
- Restore wangyihao session cookies on probe and silent refresh, and accept the legacy http://mp.163.com console origin
- Drop the standalone diagnostics view in favor of the settings tab

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/desktop-client/src/main/account-binder.ts

@@ -277,19 +277,22 @@ const ZOL_LOGIN_REDIRECT_URLS = [
   "https://service.zol.com.cn/user/login",
 ];
 const WANGYI_API_ORIGIN = "https://mp.163.com";
-const WANGYI_CONSOLE_ORIGIN = "http://mp.163.com";
+const WANGYI_CONSOLE_ORIGIN = "https://mp.163.com";
+const WANGYI_LEGACY_CONSOLE_ORIGIN = "http://mp.163.com";
 const WANGYI_API_REFERER = `${WANGYI_API_ORIGIN}/subscribe_v4/index.html`;
 const WANGYI_INFO_URL = `${WANGYI_API_ORIGIN}/wemedia/info.do`;
 const WANGYI_CONSOLE_URL = `${WANGYI_CONSOLE_ORIGIN}/subscribe_v4/index.html`;
 const WANGYI_LOGIN_REDIRECT_URLS = [
   `${WANGYI_API_ORIGIN}/login.html`,
   `${WANGYI_CONSOLE_ORIGIN}/login.html`,
+  `${WANGYI_LEGACY_CONSOLE_ORIGIN}/login.html`,
   "https://reg.163.com/",
   "https://dl.reg.163.com/",
 ];
 const WANGYI_COOKIE_URLS = [
   WANGYI_API_ORIGIN,
   WANGYI_CONSOLE_ORIGIN,
+  WANGYI_LEGACY_CONSOLE_ORIGIN,
   "https://reg.163.com/",
   "https://dl.reg.163.com/",
 ];
@@ -2092,6 +2095,10 @@ export async function probePublishAccountSession(
     };
   }
 
+  if (account.platform === "wangyihao") {
+    await restoreWangyihaoSessionCookies(account.id, handle.session);
+  }
+
   const definition = platformBindingDefinitions[account.platform];
   if (!definition) {
     return {
@@ -2460,6 +2467,10 @@ export async function silentRefreshPublishAccountSession(
     return false;
   }
 
+  if (account.platform === "wangyihao") {
+    await restoreWangyihaoSessionCookies(account.id, handle.session);
+  }
+
   const definition = platformBindingDefinitions[account.platform];
   if (!definition) {
     return false;
@@ -2537,13 +2548,6 @@ export async function inspectPublishAccountLocalSession(
 
   const profile = await resolvePublishAccountProfileFromHandle(account, handle);
   if (!profile) {
-    if (account.platform === "wangyihao") {
-      return {
-        availability: "expired",
-        profile: null,
-      };
-    }
-
     const consoleReady = await verifyPublishAccountConsoleAccess(account, handle).catch(() => false);
     if (consoleReady) {
       return {