/recommend: carry the trip scope

app/main.py

@@ -127,6 +127,14 @@ class RecommendRequest(BaseModel):
     # recommending a card whose income cutoff the user cannot meet is a promise
     # they cannot claim. Held cards are never filtered: they already have them.
     income_band: Optional[str] = None
+    # TRIP SCOPE for travel categories. Without these the offer gate in
+    # score_transaction has nothing to act on, so this endpoint kept pricing
+    # Yatra's 3-passenger ROUND-TRIP slab onto a 1-passenger one-way fare
+    # (₹3,000 where the truth is ₹799) even after the engine learned the rule.
+    # None means "unknown, do not filter" - a non-travel ask is unaffected.
+    passengers: Optional[int] = None
+    round_trip: Optional[bool] = None
+    international: Optional[bool] = None
 
 
 class AnalyzeRequest(BaseModel):
@@ -386,7 +394,11 @@ def recommend(req: RecommendRequest, request: Request = None):
         rail = req.rail or "card"
 
     ctx = TxnContext(category=category, amount=float(amount), merchant=merchant,
-                     brand_key=brand_key, offers=offers, rail=rail)
+                     brand_key=brand_key, offers=offers, rail=rail,
+                     # Carried so the offer gate can apply; see RecommendRequest.
+                     international=req.international,
+                     passengers=req.passengers,
+                     round_trip=req.round_trip)
     result = score_transaction(held, ctx, include_discovery=True, persona=persona)
     # Income gate on the DISCOVERY suggestion only (mirror of the app's
     # discover screen): a "get this card" nudge whose income cutoff the user