- Replaced all occurrences of native_types::type_* with Type::* constants
- Replaced all occurrences of complex_types::type_* with Type::* constants
- Updated ExtensionProvider annotation to use ExtensionProvider::Keyword
- Modified std array, vector, map, ordered_map, bigfloat, bigint, decimal tests
- Updated stream, array multidimensional, unsafe pointer, and type mismatch tests
- Changed camel case keyword extension to use Type::Any constant
- Updated documentation to reflect Type::* constant usage instead of type_* constants
- Add ExtensionProvider attribute class to define extension targets
- Convert function-based extensions to class-based ExtensionProvider pattern
- Support various target types including native_types, complex_types, and class names
- Parse ExtensionProvider attributes during preprocessing phase
- Generate proper extension method calls using provider classes
- Update test cases to use ExtensionProvider syntax instead of function prefixes
- Remove old extension function name patterns and related logic
- Add validation for extension provider method signatures and parameters
- Support both snake_case and camel
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