Squashed 'core/' content from commit 4957443

git-subtree-dir: core
git-subtree-split: 4957443184ae0eb6323635a90a19acffb3e01d07

artdag/analysis/__init__.py

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+# artdag/analysis - Audio and video feature extraction
+#
+# Provides the Analysis phase of the 3-phase execution model:
+# 1. ANALYZE - Extract features from inputs
+# 2. PLAN - Generate execution plan with cache IDs
+# 3. EXECUTE - Run steps with caching
+
+from .schema import (
+    AnalysisResult,
+    AudioFeatures,
+    VideoFeatures,
+    BeatInfo,
+    EnergyEnvelope,
+    SpectrumBands,
+)
+from .analyzer import Analyzer
+
+__all__ = [
+    "Analyzer",
+    "AnalysisResult",
+    "AudioFeatures",
+    "VideoFeatures",
+    "BeatInfo",
+    "EnergyEnvelope",
+    "SpectrumBands",
+]