fix: top 10 economic life limit based on minimum_eac_year

src/equipment/service.py

@@ -121,9 +121,15 @@ async def get_top_10_economic_life(*, db_session: DbSession) -> list[Equipment]:
 
     # Order by difference between current year and minimum_year
     # Add absolute difference between current year and minimum_eac_year as a new column
-    query = query.add_columns(
+    # Filter out rows where minimum_eac_year is null and limit to 10 results
+    query = (
+        query.add_columns(
             func.abs(current_year - Equipment.minimum_eac_year).label("economic_life")
-    ).order_by(func.abs(current_year - Equipment.minimum_eac_year).desc())
+        )
+        .filter(Equipment.minimum_eac_year != None)
+        .order_by(func.abs(current_year - Equipment.minimum_eac_year).desc())
+        .limit(10)
+    )
 
     result = await db_session.execute(query)