feat(tagging-system): Add comprehensive tagging system implementation

- Add tagging system Python package with modular architecture (config, core, impl)
- Create core interfaces for file discovery, content analysis, and tag generation
- Implement content analyzer with language detection and topic extraction
- Implement file discovery engine with directory scanning and filtering
- Implement tag generator with hierarchical tag creation and consolidation
- Add configuration management with example config and validation
- Create comprehensive design and requirements documentation in .kiro/specs
- Add pytest test suite with unit tests for models, interfaces, and config
- Add setup.py, requirements.txt, and pytest.ini for package management
- Add README.md with project overview and usage instructions
- Update workspace.json with new project structure
- Add Excalidraw diagram for system architecture visualization
- Establish foundation for automated vault tagging and metadata management

tests/test_package_structure.py

@@ -0,0 +1,97 @@
+"""Test overall package structure and imports."""
+
+import pytest
+
+
+class TestPackageStructure:
+    """Test that the package structure is correct."""
+    
+    def test_main_package_imports(self):
+        """Test that main package imports work correctly."""
+        from tagging_system import (
+            FileInfo,
+            ContentAnalysis,
+            TagStructure,
+            FrontmatterData,
+            ContentType,
+            LanguageInfo,
+            ValidationResult,
+            FileDiscovery,
+            ContentAnalyzer,
+            TagGenerator,
+            FrontmatterManager
+        )
+        
+        # Test that all imports are available
+        assert FileInfo is not None
+        assert ContentAnalysis is not None
+        assert TagStructure is not None
+        assert FrontmatterData is not None
+        assert ContentType is not None
+        assert LanguageInfo is not None
+        assert ValidationResult is not None
+        assert FileDiscovery is not None
+        assert ContentAnalyzer is not None
+        assert TagGenerator is not None
+        assert FrontmatterManager is not None
+    
+    def test_core_module_imports(self):
+        """Test that core module imports work correctly."""
+        from tagging_system.core import (
+            FileInfo,
+            ContentAnalysis,
+            TagStructure,
+            FrontmatterData,
+            ContentType,
+            LanguageInfo,
+            ValidationResult,
+            FileDiscovery,
+            ContentAnalyzer,
+            TagGenerator,
+            FrontmatterManager
+        )
+        
+        # All imports should be available
+        assert all([
+            FileInfo, ContentAnalysis, TagStructure, FrontmatterData,
+            ContentType, LanguageInfo, ValidationResult,
+            FileDiscovery, ContentAnalyzer, TagGenerator, FrontmatterManager
+        ])
+    
+    def test_config_module_imports(self):
+        """Test that config module imports work correctly."""
+        from tagging_system.config import (
+            TaggingConfig,
+            DirectoryMapping,
+            TagHierarchy,
+            SensitivePatterns,
+            load_config,
+            save_config
+        )
+        
+        # All imports should be available
+        assert all([
+            TaggingConfig, DirectoryMapping, TagHierarchy,
+            SensitivePatterns, load_config, save_config
+        ])
+    
+    def test_cli_module_import(self):
+        """Test that CLI module can be imported."""
+        from tagging_system import cli
+        
+        assert hasattr(cli, 'main')
+        assert callable(cli.main)
+    
+    def test_package_version(self):
+        """Test that package version is available."""
+        import tagging_system
+        
+        assert hasattr(tagging_system, '__version__')
+        assert tagging_system.__version__ == "0.1.0"
+    
+    def test_package_metadata(self):
+        """Test that package metadata is available."""
+        import tagging_system
+        
+        assert hasattr(tagging_system, '__author__')
+        assert tagging_system.__author__ == "Tagging System"