fix：splash 界面重定向界面问题

src/stores/auth/auth-machine.ts

@@ -150,6 +150,11 @@ const checkAuthStatusActor = fromPromise<LoginStatus, void>(async () => {
 
 // ============================================================
 // Machine
+//
+// 设计：所有登录/同步流跑完都回 `idle`（带正确 `loginStatus`）。
+// **不**再设 `success` state —— 之前曾用 "success" 当"刚成功"信号，
+// 但 status check 流也会误入 success，触发 splash-button 误跳 /chat。
+// 现在改用 `loginStatus !== "notLoggedIn"` 作为"已登录"信号（见 auth-context.tsx）。
 // ============================================================
 export const authMachine = setup({
   types: {
@@ -220,7 +225,7 @@ export const authMachine = setup({
       invoke: {
         src: "checkAuthStatus",
         onDone: {
-          target: "success",
+          target: "idle", // ← status check 完回 idle（**不**再假冒 success）
           actions: assign({
             loginStatus: ({ event }) => event.output,
             errorMessage: null,
@@ -241,7 +246,7 @@ export const authMachine = setup({
       invoke: {
         src: "guestLogin",
         onDone: {
-          target: "success",
+          target: "idle", // ← 改自 "success"
           actions: assign({
             loginStatus: ({ event }) => event.output,
             errorMessage: null,
@@ -266,7 +271,7 @@ export const authMachine = setup({
           return { email: event.email, password: event.password };
         },
         onDone: {
-          target: "success",
+          target: "idle", // ← 改自 "success"
           actions: assign({
             loginStatus: ({ event }) => event.output,
             errorMessage: null,
@@ -296,7 +301,7 @@ export const authMachine = setup({
           };
         },
         onDone: {
-          target: "success",
+          target: "idle", // ← 改自 "success"
           actions: assign({
             loginStatus: ({ event }) => event.output,
             errorMessage: null,
@@ -343,7 +348,7 @@ export const authMachine = setup({
           return { idToken: event.idToken };
         },
         onDone: {
-          target: "success",
+          target: "idle", // ← 改自 "success"
           actions: assign({
             loginStatus: ({ event }) => event.output,
             errorMessage: null,
@@ -368,7 +373,7 @@ export const authMachine = setup({
           return { accessToken: event.accessToken };
         },
         onDone: {
-          target: "success",
+          target: "idle", // ← 改自 "success"
           actions: assign({
             loginStatus: ({ event }) => event.output,
             errorMessage: null,
@@ -383,10 +388,6 @@ export const authMachine = setup({
         },
       },
     },
-
-    success: {
-      // 终态：业务层通过 state.matches("success") 判断
-    },
   },
 });