Revert "fix: provide capability for both SDK auth modes"

This reverts commit ebf870249f.

hub/src/connections/providerProxy.ts

@@ -41,11 +41,6 @@ export interface ProviderProxyDiagnostic {
     | "provider_proxy_redirect_refused"
     | "provider_proxy_upstream_failed";
   readonly category: NetworkFailureCategory | "authorization" | "request_limit" | "redirect";
-  readonly authShape?: {
-    readonly bearerLength: number;
-    readonly apiKeyLength: number;
-    readonly expectedLength: number;
-  };
 }
 
 export interface ProviderProxyOptions {
@@ -85,7 +80,7 @@ export async function openProviderProxyLease(
   return {
     sdkEnv: {
       ANTHROPIC_BASE_URL: `http://127.0.0.1:${address.port}`,
-      ANTHROPIC_AUTH_TOKEN: capability,
+      ANTHROPIC_AUTH_TOKEN: "",
       ANTHROPIC_API_KEY: capability,
     },
     sensitiveValues: [capability],
@@ -108,17 +103,7 @@ async function forwardProviderRequest(
   options: ProviderProxyOptions,
 ): Promise<void> {
   if (!authorized(request.headers.authorization, header(request.headers["x-api-key"]), capability)) {
-    options.onDiagnostic?.({
-      code: "provider_proxy_unauthorized",
-      category: "authorization",
-      authShape: {
-        bearerLength: request.headers.authorization?.startsWith("Bearer ")
-          ? request.headers.authorization.length - "Bearer ".length
-          : 0,
-        apiKeyLength: header(request.headers["x-api-key"])?.length ?? 0,
-        expectedLength: capability.length,
-      },
-    });
+    options.onDiagnostic?.({ code: "provider_proxy_unauthorized", category: "authorization" });
     response.writeHead(401, { "content-type": "text/plain; charset=utf-8" });
     response.end("unauthorized");
     return;