feat(login): create agent account on --github login when none exists

src/__tests__/utils/browser_auth.test.ts

@@ -153,14 +153,27 @@ describe('github_flow', ()=>{
         await expect(github_flow({})).rejects.toThrow('--customer-id');
     });
 
-    it('throws with "No Bright Data account" on 404 user_not_found from init', async()=>{
-        vi.spyOn(globalThis, 'fetch')
-            .mockResolvedValueOnce(gh_json(true, 200, GH_USER))
-            .mockResolvedValueOnce(bd_resp(404, {error: 'user_not_found'}));
+    it('does not dead-end on a missing account; backend find-or-create mints a key', async()=>{
+        // A brand-new GitHub identity (no prior BD account) reaches verify and is
+        // created server-side, returning a freshly minted key — no CLI "no account" failure.
+        const spy = vi.spyOn(globalThis, 'fetch');
+        setup_full_flow(spy);
 
-        await expect(github_flow({})).rejects.toThrow('No Bright Data account');
+        const result = await github_flow({});
+        expect(result).toBe('test-api-key');
     });
 
+    it('surfaces a generic non-zero failure (no "No Bright Data account" dead-end) on init error',
+        async()=>{
+            vi.spyOn(globalThis, 'fetch')
+                .mockResolvedValueOnce(gh_json(true, 200, GH_USER))
+                .mockResolvedValueOnce(bd_resp(404, {error: 'user_not_found'}));
+
+            const err = await github_flow({}).catch((e: Error)=>e);
+            expect(err).toBeInstanceOf(Error);
+            expect((err as Error).message).not.toContain('No Bright Data account');
+        });
+
     it('passes customer_id to the init request body when provided', async()=>{
         const spy = vi.spyOn(globalThis, 'fetch');
         setup_full_flow(spy);

src/utils/browser_auth.ts

@@ -135,13 +135,6 @@ const bd_error = (
         const detail = desc ? desc : 'Multiple accounts found';
         return new Error(`${detail} \u2014 use --customer-id to specify your account`);
     }
-    if (status == 404 && error == 'user_not_found')
-    {
-        return new Error(
-            'No Bright Data account found for your GitHub email'
-            + (desc ? `: ${desc}` : '')
-        );
-    }
     if (status == 429)
         return new Error('Rate limit exceeded, please try again in a moment');
     if (status == 502)