chore: rebrand product as 省心推 and lock UI to zh-CN

Update server titles, web/desktop window/tray/document titles, login
copy, and electron build metadata to use the Chinese product name 省心推.
Drop the runtime locale switcher and en-US import — the app now ships
zh-CN only.

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

apps/desktop-client/src/main/bootstrap.ts

@@ -340,7 +340,7 @@ async function createAppWindow(mode: WindowMode): Promise<ElectronBrowserWindow>
     minWidth: initial.minWidth,
     minHeight: initial.minHeight,
     show: false,
-    title: "GEO Rankly Desktop",
+    title: "省心推",
     icon: createDesktopHealthIcon("normal"),
     titleBarStyle: "hiddenInset",
     trafficLightPosition: { x: 12, y: 14 },
@@ -414,7 +414,7 @@ async function createSettingsWindow(): Promise<ElectronBrowserWindow> {
     minWidth: initial.minWidth,
     minHeight: initial.minHeight,
     show: false,
-    title: "GEO Rankly Desktop 设置",
+    title: "省心推设置",
     icon: createDesktopHealthIcon("normal"),
     titleBarStyle: "hiddenInset",
     trafficLightPosition: { x: 14, y: 15 },

apps/desktop-client/src/main/playwright-cdp-targets.test.ts

@@ -25,7 +25,7 @@ describe("playwright cdp target pruning", () => {
     expect(isReclaimableHiddenPlaywrightTarget({
       id: "renderer",
       type: "page",
-      title: "GEO Rankly Desktop",
+      title: "省心推 - 账号健康监控与内容发布平台",
       url: "http://localhost:5173/",
     })).toBe(false);
   });

apps/desktop-client/src/main/runtime-snapshot.ts

@@ -165,7 +165,7 @@ function createLiveRuntimeSnapshot(controller: RuntimeControllerSnapshot) {
   return {
     generatedAt: now,
     app: {
-      name: "GEO Rankly Desktop",
+      name: "省心推",
       version: app.getVersion(),
       channel: process.env.NODE_ENV === "development" ? "dev" : "release",
       platform: process.platform,

apps/desktop-client/src/main/tray.ts

@@ -57,7 +57,7 @@ export function updateTrayIssueIndicator(issueCount: number): void {
 
   tray.setImage(createTrayIcon(hasIssues ? "danger" : "normal"));
   tray.setTitle(hasIssues ? formatIssueCount(safeCount) : "", { fontType: "monospacedDigit" });
-  tray.setToolTip(hasIssues ? `GEO Rankly Desktop · ${safeCount} 个账号健康问题` : "GEO Rankly Desktop");
+  tray.setToolTip(hasIssues ? `省心推 · ${safeCount} 个账号健康问题` : "省心推");
 }
 
 export function initTray(onOpen: () => void): ElectronTray {