Bug Report: Appwrite .NET SDK `CreateOAuth2Token` → `project_provider_disabled`

Issue

Using Appwrite .NET SDK (v3.1.0), CreateOAuth2Token for Google OAuth fails with:

TypeScript

412 Precondition Failed: project_provider_disabled

Even though Google OAuth is enabled in the Appwrite console, and the same project works fine using the Web/JS SDK.

Environment

Appwrite .NET SDK: v3.1.0
ASP.NET Core MVC (C#)
Same Appwrite project as working Web/Next.js implementation

Failing Code

TypeScript

var authUrl = await _account.CreateOAuth2Token(
    OAuthProvider.Google,
    successUrl,
    failureUrl
);
return Redirect(authUrl);

also tried with

TypeScript

var authUrl = await _account.CreateOAuth2Token(
    Appwrite.Enum.OAuthProvider.Google,
    successUrl,
    failureUrl
);
return Redirect(authUrl);

Working Alternative

Manually constructing the OAuth URL works:

TypeScript

var authUrl =
    $"{endpoint}/account/sessions/oauth2/google" +
    $"?project={project}" +
    $"&success={Uri.EscapeDataString(successUrl)}" +
    $"&failure={Uri.EscapeDataString(failureUrl)}";

return Redirect(authUrl);

Root Cause

.NET SDK performs a server-to-server HTTP request
Web SDK only builds a redirect URL and lets the browser handle OAuth
Server request loses browser context/cookies and can hit regional proxy inconsistencies
Results in project_provider_disabled even when provider is enabled

Suggestion

Align .NET SDK behavior with Web SDK (return redirect URL instead of server HTTP call)
Improve consistency across regional endpoints for OAuth provider metadata