Add subscription link field to user model

- Add subscription_link column to users table (nullable, unique)
- Add SUBSCRIPTION_URL to config settings
- Update user creation to include subscription link from Remnawave
- Add support subscription ticket creation with formatted message
- Add "update link" button to main menu
- Refactor support subscription formatting to include user details

misc/utils.py

@@ -171,16 +171,33 @@ def calculate_price(subscription: SubscriptionPlan):
     ) * convert_duration_to_int(subscription.duration)
 
 
-def format_support_subscription(subscription: SubscriptionPlan) -> str:
+def format_subscription_link(link: Optional[str] = None):
+    return f"<code>{link or '...'}</code>"
+
+
+def format_support_subscription(
+    subscription: SubscriptionPlan,
+    full_name: str,
+    user_id: int,
+    username: Optional[str] = None,
+) -> str:
+    username = format_username(username)
     whitelist_description = "ВЫКЛ"
     if subscription.devices >= settings.whitelist_device_threshold:
         whitelist_description = "ВКЛ (Бесплатно)"
     elif subscription.whitelists:
         whitelist_description = "ВКЛ (Платно)"
 
-    return (
-        f"Подписка на {convert_duration_to_int(subscription.duration)} месяцев.\n"
-        f"Количество устройств: {subscription.devices}\n"
-        f"Белые списки: {whitelist_description}\n\n"
-        f"Итого: {calculate_price(subscription)}₽"
+    return texts.SUPPORT_SUBSCRIPTION.format(
+        full_name=full_name,
+        telegram_id=user_id,
+        username_display=username,
+        duration=convert_duration_to_int(subscription.duration),
+        devices=subscription.devices,
+        whitelist_description=whitelist_description,
+        price=calculate_price(subscription),
     )
+
+
+def get_subscription_link(short_uuid: str):
+    return settings.subscription_url + "/" + short_uuid