fix(coding-agent): remove Vercel AI Gateway attribution

packages/coding-agent/src/core/provider-attribution.ts

@@ -7,7 +7,6 @@ const NVIDIA_NIM_HOST = "integrate.api.nvidia.com";
 const CLOUDFLARE_API_HOST = "api.cloudflare.com";
 const CLOUDFLARE_AI_GATEWAY_HOST = "gateway.ai.cloudflare.com";
 const OPENCODE_HOST = "opencode.ai";
-const VERCEL_GATEWAY_HOST = "ai-gateway.vercel.sh";
 
 function matchesHost(baseUrl: string, expectedHost: string): boolean {
 	try {
@@ -34,10 +33,6 @@ function isCloudflareModel(model: Model<Api>): boolean {
 	);
 }
 
-function isVercelGatewayModel(model: Model<Api>): boolean {
-	return model.provider === "vercel-ai-gateway" || matchesHost(model.baseUrl, VERCEL_GATEWAY_HOST);
-}
-
 function getDefaultAttributionHeaders(
 	model: Model<Api>,
 	settingsManager: SettingsManager,
@@ -66,13 +61,6 @@ function getDefaultAttributionHeaders(
 		};
 	}
 
-	if (isVercelGatewayModel(model)) {
-		return {
-			"http-referer": "https://pi.dev",
-			"x-title": "pi",
-		};
-	}
-
 	return undefined;
 }