Enhance project structure and add new files for enrichment and analysis

- Updated AGENTS.md to reflect changes in CLI commands and module organization, including the addition of an enrichment step and new functional modules.
- Introduced analysis.json, identities.json, inventory.csv, and plan.json to support enriched metadata and execution planning.
- Added CODE_IMPROVEMENTS.md to document identified code issues and proposed solutions for future enhancements.
- Updated README.md to include new enrichment features and configuration options.
- Removed unused dependency on ffmpeg-python from pyproject.toml.

These changes improve the overall functionality and maintainability of the Video Library Manager project.

tests/test_analysis_properties.py

@@ -231,7 +231,7 @@ def test_property_12_duplicate_detection_movies(title, year, duplicate_count):
         ))
     
     # Detect duplicates
-    result = detect_duplicates(identities, files)
+    result = detect_duplicates(list(zip(identities, files)))
     
     # Should find exactly one duplicate group
     assert len(result) == 1
@@ -277,7 +277,7 @@ def test_property_13_duplicate_detection_series(title, season, episode, duplicat
         ))
     
     # Detect duplicates
-    result = detect_duplicates(identities, files)
+    result = detect_duplicates(list(zip(identities, files)))
     
     # Should find exactly one duplicate group
     assert len(result) == 1
@@ -338,7 +338,7 @@ def test_property_14_duplicate_quality_comparison(title, year, file_count):
             ))
     
     # Detect duplicates
-    result = detect_duplicates(identities, files)
+    result = detect_duplicates(list(zip(identities, files)))
     
     # Should have quality comparison data
     assert len(result) == 1