style: Fix linting errors and organize imports

engine/pipeline/__init__.py

@@ -9,28 +9,6 @@ Note: This module is deprecated and will be removed in future versions.
 """
 
 # Re-export from sideline for backward compatibility
-from sideline.pipeline import (
-    Pipeline,
-    PipelineConfig,
-    PipelineContext,
-    Stage,
-    StageConfig,
-    StageError,
-    StageResult,
-    PipelineParams,
-    StageRegistry,
-    discover_stages,
-    register_camera,
-    register_display,
-    register_effect,
-    register_source,
-)
-
-# Also re-export from sideline.core for compatibility
-from sideline.pipeline.core import (
-    DataType,
-)
-
 # Re-export from engine.pipeline.presets (Mainline-specific)
 from engine.pipeline.presets import (
     DEMO_PRESET,
@@ -45,6 +23,32 @@ from engine.pipeline.presets import (
     list_presets,
 )
 
+# Re-export additional functions from sideline.pipeline
+from sideline.pipeline import (
+    Pipeline,
+    PipelineConfig,
+    PipelineContext,
+    PipelineParams,
+    PipelineRunner,
+    Stage,
+    StageConfig,
+    StageError,
+    StageRegistry,
+    StageResult,
+    create_default_pipeline,
+    create_pipeline_from_params,
+    discover_stages,
+    register_camera,
+    register_display,
+    register_effect,
+    register_source,
+)
+
+# Also re-export from sideline.core for compatibility
+from sideline.pipeline.core import (
+    DataType,
+)
+
 # Re-export from sideline.pipeline.params
 from sideline.pipeline.params import (
     DEFAULT_HEADLINE_PARAMS,
@@ -52,13 +56,6 @@ from sideline.pipeline.params import (
     DEFAULT_PYGAME_PARAMS,
 )
 
-# Re-export additional functions from sideline.pipeline
-from sideline.pipeline import (
-    create_default_pipeline,
-    create_pipeline_from_params,
-    PipelineRunner,
-)
-
 __all__ = [
     # Core (from sideline)
     "Stage",