v0.9.0

Added

• Advanced YAML Configuration System: Complete configuration management with composition and validation
  • File includes via include: directive (single file or list) and !include tag
  • Parameter overrides with dot-notation syntax (e.g., io.loader.batch_size: 8)
  • Command-line configuration via --set flag
  • Recursive deep merging of configuration dictionaries
• Configuration Metadata System: Version control and compatibility checking via __meta__ blocks
  • Version tracking with 6-digit YYMMDD format (e.g., "240719")
  • Compatibility constraints with operators (==, >=, <=, >, <, !=)
  • Deferred validation supporting forward references between components
  • Automatic component version inference from directory structure
  • Configurable behavior: kind (bundle/mod), strict mode (warn/error), list_append (append/unique)
  • Modifier metadata: priority, applies_to, requires, conflicts_with
  • Comprehensive METADATA_GUIDE.md documentation
• Typed Exception Hierarchy: 7 specialized exceptions for configuration errors
  • ConfigError (base), ConfigIncludeError, ConfigCycleError, ConfigPathError
  • ConfigTypeError, ConfigOperationError, ConfigValidationError
• Modular Package Architecture: New spine/config/ package
  • loader.py: Include resolution, override processing, metadata validation
  • meta.py: Version parsing and compatibility checking
  • errors.py: Typed exception hierarchy
  • api.py: Configuration schema and constants

Changed

• CLI now uses load_config() with full include/override support
• Breaking: Configuration loader moved from spine.utils.config to spine.config package
  • New import: from spine.config import load_config

Removed

• CLI --detect-anomaly flag (use --set model.detect_anomaly=true instead)

Full Changelog: v0.8.1...v0.9.0