removed timeout from send_request and added promo options to product metadata

src/monitor_utils/models.py

@@ -97,6 +97,16 @@ class ProductMetadata:
         overstock_text: Overstock label text when present.
         percentage: Computed discount percentage.
         affiliate_url: Affiliate link when available.
+        promo_code: Event-level checkout code (e.g. "BIRTHDAY26") when the
+            product's event advertises one, else None.
+        promo_percentage: Advertised percent off from a percentage code
+            ("extra 22% off" -> 22); None for dollar codes or no code. This is
+            the claimed discount, not the actual price delta.
+        promo_dollar_off: Advertised dollar amount off from a spend-threshold
+            code ("get an extra $22 off" -> 22); None for percentage codes or
+            no code. Pairs with promo_min_spend.
+        promo_min_spend: Spend threshold a dollar code requires ("Spend $100"
+            -> 100); None unless promo_dollar_off is set.
     """
 
     image_url: str | None = None
@@ -106,6 +116,10 @@ class ProductMetadata:
     overstock_text: str | None = None
     percentage: int | None = None
     affiliate_url: str | None = None
+    promo_code: str | None = None
+    promo_percentage: int | None = None
+    promo_dollar_off: int | None = None
+    promo_min_spend: int | None = None
 
 
 @dataclass