Add fetch_category_names to Eviivo, QBook and Mews profiles

- Eviivo: no-dates page fetch returns all room types with data-item-name and
  data-rate-plan-name; single request populates the full name catalogue
- QBook: item_name already in /api/pull response; extracted on a dummy date
  call; no distinct rate plan names exposed so rate_labels left empty
- Mews: getCalendarData (bookingEngineId field) returns resourceCategories[].name
  and rates[].name as {en-US: ...} dicts; both room and rate labels populated

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

backend/services/direct_profiles/eviivo.py

@@ -44,6 +44,30 @@ class EviivoProfile(BaseProfile):
             return {"property_slug": m.group(1)}
         return None
 
+    async def fetch_category_names(self, client, params: dict) -> tuple[dict, dict]:
+        slug = params["property_slug"]
+        try:
+            r = await client.get(f"https://via.eviivo.com/{slug}", headers=HEADERS, timeout=20)
+        except Exception:
+            return {}, {}
+        if r.status_code != 200:
+            return {}, {}
+        room_names: dict[str, str] = {}
+        rate_names: dict[str, str] = {}
+        for tag in _TAG_RE.finditer(r.text):
+            attrs = _extract_data_attrs(tag.group(0))
+            room_id = attrs.get("room-type-id", "").strip()
+            if not room_id:
+                continue
+            room_name = attrs.get("item-name", "").strip()
+            rate_plan = attrs.get("rate-plan-name", "").strip()
+            rate_id = f"{room_id}_{_slugify(rate_plan) if rate_plan else 'standard'}"
+            if room_name:
+                room_names[room_id] = room_name
+            if rate_plan:
+                rate_names[rate_id] = rate_plan
+        return room_names, rate_names
+
     async def fetch_arrival_dates(self, client, params: dict) -> list[str]:
         """Return the next 90 days as ISO date strings starting from tomorrow.