fix(cloud): launch newly registered accounts through Space (#2499)

* fix(cloud): launch new accounts through Space

* style: format Cloud entry URL

* fix(cloud): wait for launch workspace projection

---------

Co-authored-by: dadachann <185672915+dadachann@users.noreply.github.com>

web/src/app/infra/http/BackendClient.ts

@@ -1385,12 +1385,18 @@ export class BackendClient extends BaseHttpClient {
   }
 
   // ============ Space OAuth API (Redirect Flow) ============
-  public getSpaceAuthorizeUrl(redirectUri: string): Promise<{
+  public getSpaceAuthorizeUrl(
+    redirectUri: string,
+    options?: { cloudEntry?: boolean },
+  ): Promise<{
     authorize_url: string;
   }> {
     return this.get(
       '/api/v1/user/space/authorize-url',
-      { redirect_uri: redirectUri },
+      {
+        redirect_uri: redirectUri,
+        ...(options?.cloudEntry ? { cloud_entry: '1' } : {}),
+      },
       { skipWorkspace: true },
     );
   }

web/src/app/login/page.tsx

@@ -202,7 +202,13 @@ export default function Login() {
     try {
       const currentOrigin = window.location.origin;
       const redirectUri = `${currentOrigin}/auth/space/callback`;
-      const response = await httpClient.getSpaceAuthorizeUrl(redirectUri);
+      const response = await httpClient.getSpaceAuthorizeUrl(redirectUri, {
+        // Cloud Accounts must be launched from Space so a first visit can
+        // lazily create and project the personal Workspace. Invitation login
+        // remains on the OAuth callback path because it targets the invited
+        // Workspace instead.
+        cloudEntry: !getPendingInvitationToken(),
+      });
       window.location.href = response.authorize_url;
     } catch {
       toast.error(t('common.spaceLoginFailed'));