fix: reject unconfirmed Telegram tests and invalid update responses

tests/account-request.test.mjs

@@ -36,3 +36,16 @@ test('late private account responses and explicit cancellation do not reach the
   await assert.rejects(accountRequest('/state',{signal:controller.signal}),{name:'AbortError'});
  } finally {globalThis.fetch=original;if(storage)Object.defineProperty(globalThis,'localStorage',storage);else delete globalThis.localStorage;}
 });
+
+test('Telegram test does not report success without a provider receipt or retry an ambiguous response',async()=>{
+ const {telegramTest}=await import('../src/services/account.js');
+ const original=globalThis.fetch;let calls=0;
+ try{
+  globalThis.fetch=async()=>{calls++;return Response.json({success:true});};
+  await assert.rejects(telegramTest(),/kabulü doğrulanamadı/);assert.equal(calls,1);
+  globalThis.fetch=async()=>Response.json({success:true,id:'123:42'});
+  assert.equal((await telegramTest()).id,'123:42');
+  globalThis.fetch=async()=>Response.json({success:false,error:'Telegram hizmeti etkin değil.'},{status:503});
+  await assert.rejects(telegramTest(),/etkin değil/);
+ }finally{globalThis.fetch=original;}
+});