added RAG, Multiuser, TG bot

backend/app/fitness/service.py

@@ -625,6 +625,23 @@ class FitnessService:
             "reminders": self.list_reminders(),
         }
 
+    def get_charts(
+        self,
+        *,
+        weeks: int = 52,
+        trend: bool = True,
+        end_day: date | None = None,
+    ) -> dict[str, Any]:
+        from app.fitness.charts import build_fitness_charts
+
+        return build_fitness_charts(
+            self.db,
+            self.user_id,
+            weeks=weeks,
+            trend=trend,
+            end_day=end_day,
+        )
+
     @staticmethod
     def _food_to_dict(row: FoodLog) -> dict[str, Any]:
         return {