fix: improve GitHub Copilot integration

src/agents/auth-profiles/oauth.ts

@@ -103,6 +103,13 @@ async function tryResolveOAuthProfile(params: {
   if (profileConfig && profileConfig.provider !== cred.provider) return null;
   if (profileConfig && profileConfig.mode !== cred.type) return null;
 
+  if (cred.provider === "github-copilot" && (!Number.isFinite(cred.expires) || cred.expires <= 0)) {
+    return {
+      apiKey: buildOAuthApiKey(cred.provider, cred),
+      provider: cred.provider,
+      email: cred.email,
+    };
+  }
   if (Date.now() < cred.expires) {
     return {
       apiKey: buildOAuthApiKey(cred.provider, cred),

src/agents/auth-profiles/types.ts

@@ -19,6 +19,7 @@ export type TokenCredential = {
   token: string;
   /** Optional expiry timestamp (ms since epoch). */
   expires?: number;
+  enterpriseUrl?: string;
   email?: string;
 };