Backend totalmente hecho con mongodb, añadida la funcionalidad de usuarios con historial

backend/api/routers/history.py

@@ -0,0 +1,62 @@
+from fastapi import APIRouter, HTTPException, status
+from typing import List
+from datetime import datetime
+from bson import ObjectId
+
+from api.database.mongodb import users_collection
+from api.models.user_models import FuzzyTerm, HistoryCreateRequest
+
+router = APIRouter(prefix="/history", tags=["history"])
+
+
+@router.post("/{user_id}/add")
+async def add_history_item(user_id: str, data: HistoryCreateRequest):
+    user = await users_collection.find_one({"_id": ObjectId(user_id)})
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Usuario no encontrado",
+        )
+
+    history_item_id = ObjectId()
+
+    history_item = {
+        "_id": history_item_id,
+        "name": data.name,  # ← nuevo campo
+        "created_at": datetime.utcnow(),
+        "results": [r.dict() for r in data.results],
+    }
+
+    await users_collection.update_one(
+        {"_id": ObjectId(user_id)},
+        {"$push": {"history": history_item}},
+    )
+
+    return {
+        "message": "Elemento añadido al historial",
+        "history_item_id": str(history_item_id),
+    }
+
+
+
+@router.delete("/{user_id}/delete/{history_item_id}")
+async def delete_history_item(user_id: str, history_item_id: str):
+    user = await users_collection.find_one({"_id": ObjectId(user_id)})
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Usuario no encontrado",
+        )
+
+    result = await users_collection.update_one(
+        {"_id": ObjectId(user_id)},
+        {"$pull": {"history": {"_id": ObjectId(history_item_id)}}},
+    )
+
+    if result.modified_count == 0:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Elemento de historial no encontrado",
+        )
+
+    return {"message": "Elemento eliminado del historial"}