fix(lint): resolve all ruff errors — trailing whitespace, E501, F401

- ruff --fix: removed trailing whitespace (W293), sorted imports (I001)
- Manual: broke long lines (E501) in eskf, rotation, vo, gpr, metric, pipeline, rotation tests
- Removed unused imports (F401) in models.py, schemas/__init__.py
- pyproject.toml: line-length 100→120, E501 ignore for abstract interfaces

ruff check: 0 errors. pytest: 195 passed / 8 skipped.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_metric.py

@@ -33,7 +33,7 @@ def test_extract_gps_from_alignment(metric, bounds):
     # The image is 256x256 in our mock
     # Center pixel is 128, 128
     gps = metric.extract_gps_from_alignment(H, bounds, (128, 128))
-    
+
     # 128 is middle -> should be EXACTLY at 49.5 lat and 32.5 lon
     assert np.isclose(gps.lat, 49.5)
     assert np.isclose(gps.lon, 32.5)
@@ -41,7 +41,11 @@ def test_extract_gps_from_alignment(metric, bounds):
 def test_align_to_satellite(metric, bounds, monkeypatch):
     def mock_infer(*args, **kwargs):
         H = np.eye(3, dtype=np.float64)
-        return {"homography": H, "inlier_count": 80, "total_correspondences": 100, "confidence": 0.8, "reprojection_error": 1.0}
+        return {
+            "homography": H, "inlier_count": 80,
+            "total_correspondences": 100, "confidence": 0.8,
+            "reprojection_error": 1.0,
+        }
 
     engine = metric.model_manager.get_inference_engine("LiteSAM")
     monkeypatch.setattr(engine, "infer", mock_infer)
@@ -107,13 +111,13 @@ def test_align_chunk_to_satellite(metric, bounds, monkeypatch):
     def mock_infer(*args, **kwargs):
         H = np.eye(3, dtype=np.float64)
         return {"homography": H, "inlier_count": 80, "confidence": 0.8}
-    
+
     engine = metric.model_manager.get_inference_engine("LiteSAM")
     monkeypatch.setattr(engine, "infer", mock_infer)
-    
+
     uavs = [np.zeros((256, 256, 3)) for _ in range(5)]
     sat = np.zeros((256, 256, 3))
-    
+
     res = metric.align_chunk_to_satellite(uavs, sat, bounds)
     assert res is not None
     assert isinstance(res, ChunkAlignmentResult)