Add Eviivo, QBook and Mews direct scrape profiles

Three new engine profiles for competitor direct-rate monitoring:
- eviivo: HTML scrape via httpx (no JSON API); presence = available, no room count
- qbook: QBook/Hotels UK JSON API; availableroom count, skip roomprice=0 (unconfigured rate)
- mews: Mews Booking Engine v1 API (unauthenticated); getAvailability + getPricing; proper net/gross split; timezone-aware per property

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/services/direct_profiles/qbook.py

@@ -0,0 +1,96 @@
+import base64
+import re
+from datetime import date, timedelta
+from urllib.parse import unquote
+from .base import BaseProfile
+
+# Hardcoded in the QBook JS bundle — fixed for all Hotels UK properties
+_AUTH_BASE = "5wv2AGgSxfRKvH92UzxHcbSRZNJBEMd8cAay2RY7qC8YBjSTdswMvvdw343X"
+_BUNDLE_K = "ad7ec113c738d3f5fe9f89a7e58a4b74e8301128"
+
+HEADERS = {
+    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
+    "Accept": "application/json",
+    "Referer": "https://web-bookings.hotels.uk.com/",
+    "Origin": "https://web-bookings.hotels.uk.com",
+}
+
+
+def _build_auth(hotel_id: str, from_date: str, to_date: str) -> str:
+    code_auth = base64.b64encode(
+        f"{hotel_id}#{from_date}#{to_date}".encode()
+    ).decode().rstrip("=")
+    return _AUTH_BASE[:30] + code_auth + _AUTH_BASE[30:]
+
+
+class QBookProfile(BaseProfile):
+    name = "qbook"
+    label = "QBook (Hotels UK)"
+    required_params = [
+        {"key": "hotel_id", "label": "Hotel ID",
+         "help": "Numeric hotel ID from the booking URL, e.g. 51420"},
+        {"key": "dk", "label": "Distribution Key",
+         "help": "The k= value from the booking widget URL"},
+    ]
+
+    @classmethod
+    def detect(cls, url: str) -> dict | None:
+        m = re.search(r'web-bookings\.hotels\.uk\.com/#/booking/(\d+)', url)
+        if not m:
+            return None
+        hotel_id = m.group(1)
+        dk_match = re.search(r'[?&]k=([^&\s#]+)', url)
+        dk = unquote(dk_match.group(1)) if dk_match else ""
+        return {"hotel_id": hotel_id, "dk": dk}
+
+    async def fetch_arrival_dates(self, client, params: dict) -> list[str]:
+        today = date.today()
+        return [(today + timedelta(days=i)).isoformat() for i in range(1, 91)]
+
+    async def fetch_night_rates(self, client, params: dict, arrival: str, nights: int = 1) -> list[dict]:
+        hotel_id = params["hotel_id"]
+        dk = params["dk"]
+        departure = (date.fromisoformat(arrival) + timedelta(days=nights)).isoformat()
+
+        try:
+            r = await client.get(
+                "https://web-bookings.hotels.uk.com/api/pull",
+                params={
+                    "HotelAvailability": "", "k": _BUNDLE_K,
+                    "HotelID": hotel_id, "from": arrival, "to": departure,
+                    "json": "", "dk": dk, "Qbook": "",
+                    "GHABooking": "", "CookieBooking": "", "COOKIE_HotelID": "",
+                    "guests": "", "adultsCheck": "", "childAges": "",
+                    "roomId": "", "revised": "",
+                },
+                headers={**HEADERS, "Auth": _build_auth(hotel_id, arrival, departure)},
+                timeout=20,
+            )
+        except Exception:
+            return []
+
+        if r.status_code != 200:
+            return []
+
+        availability = r.json().get("availability", {})
+        if not isinstance(availability, dict):
+            return []
+
+        rooms = []
+        for item_id, item in availability.items():
+            if not isinstance(item, dict):
+                continue
+            avail_count = item.get("availableroom", 0)
+            price = item.get("roomprice", 0.0)
+            # roomprice=0 on an available room means no rate configured in QBook's backend
+            if not price:
+                continue
+            rooms.append({
+                "roomId": str(item_id),
+                "rateId": "default",
+                "availability": avail_count,
+                "prices": [{"amountBeforeTax": price, "amountAfterTax": price}] * nights,
+                "currencyCode": "GBP",
+            })
+
+        return rooms