fix: update sleep chart payloads to use duration_minutes and quality_score

- Changed SQL queries in `build_sleep_duration_quality_chart_payload` and `build_sleep_debt_chart_payload` to select `duration_minutes` instead of `total_sleep_min`.
- Updated calculations for sleep duration and quality scores to reflect the new field names, ensuring accurate data representation in the recovery charts.

backend/data_layer/recovery_chart_payloads.py

@@ -211,7 +211,7 @@ def build_sleep_duration_quality_chart_payload(profile_id: str, days: int) -> Di
     with get_db() as conn:
         cur = get_cursor(conn)
         cur.execute(
-            """SELECT date, total_sleep_min
+            """SELECT date, duration_minutes
                FROM sleep_log
                WHERE profile_id=%s AND date >= %s
                ORDER BY date""",
@@ -231,7 +231,9 @@ def build_sleep_duration_quality_chart_payload(profile_id: str, days: int) -> Di
         }
 
     labels = [row["date"].isoformat() for row in rows]
-    duration_hours = [safe_float(row["total_sleep_min"]) / 60 if row["total_sleep_min"] else None for row in rows]
+    duration_hours = [
+        safe_float(row["duration_minutes"]) / 60 if row["duration_minutes"] else None for row in rows
+    ]
 
     quality_scores = [(d / 8 * 100) if d else None for d in duration_hours]
 
@@ -266,7 +268,7 @@ def build_sleep_duration_quality_chart_payload(profile_id: str, days: int) -> Di
                 "confidence": duration_data["confidence"],
                 "data_points": len(rows),
                 "avg_duration_hours": round(duration_data["avg_duration_hours"], 1),
-                "sleep_quality_score": quality_data.get("sleep_quality_score", 0),
+                "sleep_quality_score": quality_data.get("quality_score", 0),
             }
         ),
     }
@@ -295,7 +297,7 @@ def build_sleep_debt_chart_payload(profile_id: str, days: int) -> Dict[str, Any]
     with get_db() as conn:
         cur = get_cursor(conn)
         cur.execute(
-            """SELECT date, total_sleep_min
+            """SELECT date, duration_minutes
                FROM sleep_log
                WHERE profile_id=%s AND date >= %s
                ORDER BY date""",
@@ -321,7 +323,7 @@ def build_sleep_debt_chart_payload(profile_id: str, days: int) -> Dict[str, Any]
     debt_values = []
 
     for row in rows:
-        actual_hours = safe_float(row["total_sleep_min"]) / 60 if row["total_sleep_min"] else 0
+        actual_hours = safe_float(row["duration_minutes"]) / 60 if row["duration_minutes"] else 0
         daily_deficit = target_hours - actual_hours
         cumulative_debt += daily_deficit
         debt_values.append(cumulative_debt)