Refactor transaction_type filtering in search_properties function

- Updated the search_properties function to replace transaction types 'rent' and 'buy' with 'lease' and 'sale', respectively, for improved clarity and consistency in property search.
- Adjusted the query logic to use equality checks for the new transaction types, ensuring accurate filtering of properties based on user selection.
- Enhanced debug logging to reflect the updated filtering criteria, aiding in troubleshooting and user feedback.

database.py

@@ -331,14 +331,14 @@ async def search_properties(filters: dict) -> list:
         transaction_type = filters.get("transaction_type")
         if transaction_type:
             print(f"DEBUG - Filtering by transaction_type: {transaction_type}")
-            if transaction_type == "rent":
-                # For rent: filter by monthly, weekly, daily price types
-                query = query.in_("price_type", ["monthly", "weekly", "daily"])
-                print(f"DEBUG - Filtering for rental properties (monthly, weekly, daily)")
-            elif transaction_type == "buy":
-                # For buy: filter by sale, purchase price types
-                query = query.in_("price_type", ["sale", "purchase", "total"])
-                print(f"DEBUG - Filtering for sale properties (sale, purchase, total)")
+            if transaction_type == "lease":
+                # For rent: filter by lease price type
+                query = query.eq("price_type", "lease")
+                print(f"DEBUG - Filtering for rental properties (lease)")
+            elif transaction_type == "sale":
+                # For buy: filter by sale price type
+                query = query.eq("price_type", "sale")
+                print(f"DEBUG - Filtering for sale properties (sale)")
         else:
             print(f"DEBUG - No transaction_type filter applied")