fix: use native Pi identity and refresh provider catalogs

tests/auth-provider-keys.test.ts

@@ -13,7 +13,7 @@
  * ALL the env vars a provider reads as API keys.
  *
  * Owner-spec exclusions (asserted ABSENT): github-copilot (OAuth),
- * amazon-bedrock (AWS creds), google-vertex (ADC), azure-openai-responses
+ * amazon-bedrock (AWS creds), google-vertex (ADC), azure
  * (needs base URL), the cloudflare account-scoped pair; anthropic keeps
  * ANTHROPIC_API_KEY only (AUTH_TOKEN/OAUTH_TOKEN stay env-only).
  */
@@ -32,7 +32,7 @@ const EXCLUDED_PROVIDERS = new Set([
 	"github-copilot",
 	"amazon-bedrock",
 	"google-vertex",
-	"azure-openai-responses",
+	"azure",
 	"cloudflare-workers-ai",
 	"cloudflare-ai-gateway",
 ]);