fix: prefer dedicated telegram pricing group

src/auth/telegram_group_pricing.py

@@ -89,12 +89,15 @@ def verify_telegram_login_payload(
 class TelegramGroupPricing:
     def __init__(self) -> None:
         self.bot_token = str(os.getenv("TELEGRAM_BOT_TOKEN") or "").strip()
-        self.group_chat_ids = parse_telegram_chat_ids(
+        dedicated_group_chat_ids = parse_telegram_chat_ids(
             os.getenv("POLYWEATHER_TELEGRAM_GROUP_ID"),
             os.getenv("POLYWEATHER_TELEGRAM_GROUP_IDS"),
+        )
+        fallback_group_chat_ids = parse_telegram_chat_ids(
             os.getenv("TELEGRAM_CHAT_IDS"),
             os.getenv("TELEGRAM_CHAT_ID"),
         )
+        self.group_chat_ids = dedicated_group_chat_ids or fallback_group_chat_ids
         self.member_price = _decimal_env("POLYWEATHER_GROUP_MEMBER_PRICE_USDC", "5")
         self.public_price = _decimal_env("POLYWEATHER_PUBLIC_PRICE_USDC", "10")
         self.timeout_sec = max(

tests/test_telegram_group_pricing.py

@@ -104,6 +104,16 @@ def test_group_pricing_treats_left_status_as_public_price(monkeypatch):
     assert result["telegram_status"] == "left"
 
 
+def test_dedicated_group_id_overrides_legacy_chat_ids(monkeypatch):
+    monkeypatch.setenv("TELEGRAM_BOT_TOKEN", "bot-token")
+    monkeypatch.setenv("POLYWEATHER_TELEGRAM_GROUP_ID", "-100internal")
+    monkeypatch.setenv("TELEGRAM_CHAT_IDS", "-100old")
+
+    pricing = TelegramGroupPricing()
+
+    assert pricing.group_chat_ids == ["-100internal"]
+
+
 def test_payment_plan_uses_linked_telegram_group_price(monkeypatch, tmp_path):
     monkeypatch.setenv("POLYWEATHER_PAYMENT_ENABLED", "true")
     monkeypatch.setenv("SUPABASE_URL", "https://example.supabase.co")