Simplify backup menu and remove last backup

handlers/backup.py

@@ -7,7 +7,7 @@ from app import dp
 from auth import is_admin_msg
 from keyboards import backup_kb
 from lock_utils import acquire_lock, release_lock
-from services.backup import backup_badge, last_backup, restore_help
+from services.backup import backup_badge, restore_help
 from services.runner import run_cmd
 
 
@@ -124,15 +124,6 @@ async def cmd_backup_now(msg: Message):
     asyncio.create_task(worker())
 
 
-async def cmd_last_backup(msg: Message):
-    try:
-        text = await asyncio.to_thread(last_backup)
-    except Exception as e:
-        await msg.answer(f"❌ Last backup failed: {type(e).__name__}: {e}", reply_markup=backup_kb)
-        return
-    await msg.answer(text, reply_markup=backup_kb)
-
-
 async def cmd_last_snapshot(msg: Message):
     await msg.answer("⏳ Loading last snapshot…", reply_markup=backup_kb)
 
@@ -191,12 +182,6 @@ async def rs(msg: Message):
         await cmd_repo_stats(msg)
 
 
-@dp.message(F.text == "📦 Last backup")
-async def lb(msg: Message):
-    if is_admin_msg(msg):
-        await cmd_last_backup(msg)
-
-
 @dp.message(F.text == "📦 Last snapshot")
 async def ls(msg: Message):
     if is_admin_msg(msg):