[feat] Cloud onboarding flow implementation (#5494)

* feature: cloud onboarding scaffolding

* fix: redirect unknown routes

* feature: cloud onboarding flow

* chore: code review

* test: api mock for test failing

* refactor: Centralize onboarding routing with dedicated check views

- Add UserCheckView to handle all user status routing decisions
- Add InviteCheckView to manage invite code validation flow
- Simplify auth.ts by removing async operations and extra complexity
- Update login/signup to always redirect through UserCheckView
- Remove distributed routing logic from all onboarding components
- Simplify router guards to delegate to check views
- Fix infinite redirect loops for non-whitelisted users
- Use window.location.href for final navigation to bypass router conflicts

Breaking changes:
- Removed claimInvite from auth.ts (moved to CloudClaimInviteView)
- Changed route names to use cloud- prefix consistently
- Simplified getMe() to synchronous function

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* fix: delete unused file

* Revert "test: api mock for test failing"

This reverts commit 06ca56c05e.

* feature: API applied

* feature: survey view

* feature: signup / login view completed

* style: min-h-screen deleted

* feature: completed login flow

* feature: router view added

---------

Co-authored-by: Claude <noreply@anthropic.com>

src/platform/onboarding/cloud/CloudSignupView.vue

@@ -0,0 +1,178 @@
+<!-- eslint-disable @intlify/vue-i18n/no-raw-text -->
+<template>
+  <div class="h-full flex items-center justify-center p-8">
+    <div class="w-96 p-2">
+      <!-- Header -->
+      <div class="flex flex-col gap-4 mb-8">
+        <h1 class="text-xl font-medium leading-normal my-0">
+          {{ t('auth.signup.title') }}
+        </h1>
+        <p class="text-base my-0">
+          <span class="text-muted">{{
+            t('auth.signup.alreadyHaveAccount')
+          }}</span>
+          <span
+            class="ml-1 cursor-pointer text-blue-500"
+            @click="navigateToLogin"
+            >{{ t('auth.signup.signIn') }}</span
+          >
+        </p>
+      </div>
+
+      <Message v-if="!isSecureContext" severity="warn" class="mb-4">
+        {{ t('auth.login.insecureContextWarning') }}
+      </Message>
+
+      <!-- Form -->
+      <Message v-if="userIsInChina" severity="warn" class="mb-4">
+        {{ t('auth.signup.regionRestrictionChina') }}
+      </Message>
+      <SignUpForm v-else :auth-error="authError" @submit="signUpWithEmail" />
+
+      <!-- Divider -->
+      <Divider align="center" layout="horizontal" class="my-8">
+        <span class="text-muted">{{ t('auth.login.orContinueWith') }}</span>
+      </Divider>
+
+      <!-- Social Login Buttons -->
+      <div class="flex flex-col gap-6">
+        <Button
+          type="button"
+          class="h-10 bg-[#2d2e32]"
+          severity="secondary"
+          @click="signInWithGoogle"
+        >
+          <i class="pi pi-google mr-2"></i>
+          {{ t('auth.signup.signUpWithGoogle') }}
+        </Button>
+
+        <Button
+          type="button"
+          class="h-10 bg-[#2d2e32]"
+          severity="secondary"
+          @click="signInWithGithub"
+        >
+          <i class="pi pi-github mr-2"></i>
+          {{ t('auth.signup.signUpWithGithub') }}
+        </Button>
+      </div>
+
+      <!-- Terms & Contact -->
+      <div class="mt-5 text-sm text-gray-600">
+        {{ t('auth.login.termsText') }}
+        <a
+          href="https://www.comfy.org/terms-of-service"
+          target="_blank"
+          class="text-blue-400 no-underline cursor-pointer"
+        >
+          {{ t('auth.login.termsLink') }}
+        </a>
+        {{ t('auth.login.andText') }}
+        <a
+          href="/privacy-policy"
+          target="_blank"
+          class="text-blue-400 no-underline cursor-pointer"
+        >
+          {{ t('auth.login.privacyLink') }} </a
+        >.
+        <p class="mt-2">
+          Questions? Contact us
+          <a
+            href="https://support.comfy.org"
+            class="text-blue-400 no-underline cursor-pointer"
+            target="_blank"
+            rel="noopener noreferrer"
+          >
+            here</a
+          >.
+        </p>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import Button from 'primevue/button'
+import Divider from 'primevue/divider'
+import Message from 'primevue/message'
+import { onMounted, ref } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useRoute, useRouter } from 'vue-router'
+
+import SignUpForm from '@/components/dialog/content/signin/SignUpForm.vue'
+import { useFirebaseAuthActions } from '@/composables/auth/useFirebaseAuthActions'
+import { SignUpData } from '@/schemas/signInSchema'
+import { translateAuthError } from '@/utils/authErrorTranslation'
+import { isInChina } from '@/utils/networkUtil'
+
+const { t } = useI18n()
+const router = useRouter()
+const route = useRoute()
+const authActions = useFirebaseAuthActions()
+const isSecureContext = window.isSecureContext
+const authError = ref('')
+const userIsInChina = ref(false)
+
+const navigateToLogin = () => {
+  void router.push({ name: 'cloud-login', query: route.query })
+}
+
+const onSuccess = async () => {
+  // After successful signup, always go to user check
+  // The user check will handle routing based on their status
+  await router.push({ name: 'cloud-user-check' })
+}
+
+// Custom error handler for inline display
+const inlineErrorHandler = (error: unknown) => {
+  authError.value = translateAuthError(error)
+  authActions.reportError(error)
+}
+
+const signInWithGoogle = async () => {
+  authError.value = ''
+  if (await authActions.signInWithGoogle(inlineErrorHandler)()) {
+    await onSuccess()
+  }
+}
+
+const signInWithGithub = async () => {
+  authError.value = ''
+  if (await authActions.signInWithGithub(inlineErrorHandler)()) {
+    await onSuccess()
+  }
+}
+
+const signUpWithEmail = async (values: SignUpData) => {
+  authError.value = ''
+  if (
+    await authActions.signUpWithEmail(
+      values.email,
+      values.password,
+      inlineErrorHandler
+    )()
+  ) {
+    await onSuccess()
+  }
+}
+
+onMounted(async () => {
+  userIsInChina.value = await isInChina()
+})
+</script>
+<style scoped>
+:deep(.p-inputtext) {
+  border: none !important;
+  box-shadow: none !important;
+  background: #2d2e32 !important;
+}
+
+:deep(.p-password input) {
+  border: none !important;
+  box-shadow: none !important;
+}
+:deep(.p-checkbox-checked .p-checkbox-box) {
+  background-color: #f0ff41 !important;
+  border-color: #f0ff41 !important;
+}
+</style>