chore: enforce ruff config and fix lint findings

ashvale/models/__init__.py

@@ -12,11 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from .rls import RecursiveLeastSquares, AdaptiveConformal
-from .nowcast import NowcastEnsemble
-from .climatology import HarmonicClimatology
-from .precip import PrecipitationModel, zambretti
 from .anomaly import AnomalyMonitor
+from .climatology import HarmonicClimatology
+from .nowcast import NowcastEnsemble
+from .precip import PrecipitationModel, zambretti
+from .rls import AdaptiveConformal, RecursiveLeastSquares
 
 __all__ = [
     "RecursiveLeastSquares", "AdaptiveConformal", "NowcastEnsemble",

ashvale/models/climatology.py

@@ -141,9 +141,9 @@ class HarmonicClimatology:
         sigma0 = self.resid_std.get(target, 1.0)
         sigma = sigma0 * np.sqrt(1.0 + lead_h / 24.0)
         return [
-            {"ts": float(t), "lead_h": float(l), "mu": float(m),
+            {"ts": float(t), "lead_h": float(lh), "mu": float(m),
              "lo": float(m - 1.645 * s), "hi": float(m + 1.645 * s)}
-            for t, l, m, s in zip(grid, lead_h, mu, sigma)
+            for t, lh, m, s in zip(grid, lead_h, mu, sigma)
         ]
 
     def anomaly_now(self, target: str, ts: float, observed: float) -> float:

ashvale/models/precip.py

@@ -39,7 +39,7 @@ from __future__ import annotations
 
 import math
 import time
-from typing import Dict, List, Optional, Tuple
+from typing import Dict, List, Optional
 
 import numpy as np