refactor: removed unused user_data module and simplified logs handling

logs.py

@@ -11,3 +11,27 @@ def save_log(user_id: int, history: dict, response: str):
     )
     with open("recommender.log", "a", encoding="utf-8") as f:
         f.write(log_entry)
+
+
+def get_user_history(user_id: int) -> dict:
+    """
+    Lê o arquivo recommender.log e retorna o último histórico do usuário.
+    """
+    history = {}
+
+    try:
+        with open("recommender.log", "r", encoding="utf-8") as f:
+            lines = f.readlines()
+
+        current_user = None
+        
+        for line in lines:
+            if line.startswith("Usuário:"):
+                current_user = int(line.split(":")[1].strip())
+            elif line.startswith("Histórico:") and current_user == user_id:
+                history = eval(line.split(":", 1)[1].strip())
+
+    except FileNotFoundError:
+        pass
+
+    return history

user_data.py

@@ -1,13 +0,0 @@
-user_histories = {
-    1: {'fiction': 5, 'non_fiction': 2, 'science': 0, 'fantasy': 0},
-    2: {'fiction': 1, 'non_fiction': 4, 'science': 1, 'fantasy': 2},
-    3: {'fiction': 0, 'non_fiction': 1, 'science': 5, 'fantasy': 0},
-    4: {'fiction': 1, 'non_fiction': 0, 'science': 0, 'fantasy': 6},
-}
-
-
-def get_user_history(user_id: int) -> dict:
-    """
-    Retorna o histórico de compras do usuário.
-    """
-    return user_histories.get(user_id)