CHORE: Update tsconfig include path

- Added `src/**/*.ts` to the `include` array in `tsconfig.json`.
- This ensures that TypeScript files within the `src` directory are now included in the compilation process.
- Previously, only files in the root directory were included, which would have prevented the project from building correctly if source code was organized into subdirectories.

FIX: Improve type checking for Date and Number

- Added a check to `isOfType` to correctly validate `Date` and `Number` types when the value is `NaN`. This ensures that `NaN` values are not incorrectly accepted as valid `Date` or `Number` types during validation.
- Updated the version and description in `package.json`.

CHORE: Refactor validation handlers and update tsconfig

- Removed static `version` property from `User` class in tests as it was unused.
- Updated validation handler tests to use named handlers with `addValidationHandler` and `removeValidationHandler` for better management and to avoid global state manipulation.
- Added tests for `Set` and `Map` types, including their construction, item/key validation, and proxying of standard Map/Set methods.
- Introduced tests for handler scoping and deduplication, demonstrating that handlers are shared via prototype and duplicate names are ignored.
- Enhanced `buildError` tests to ensure all metadata fields are correctly produced and that `expected` values are meaningful.
- Updated `tsconfig.json` to remove `noEmit` and `allowImportingTsExtensions` as they are no longer necessary for the current setup, and adjusted `include` path.

FEAT: Add global autorequire toggle and enhance test coverage

- Introduce `Base.autorequire` global toggle to control behavior for missing non-optional fields.
- When `Base.autorequire` is `false`, missing non-optional fields will be silently set to `undefined` instead of throwing a `RequiredError`.
- Explicit `required: true` or `optional: false` configurations will always take precedence, ensuring required fields are always enforced.
- This feature aids in gradual schema adoption and can be useful for ORMs.
- Significantly expand test coverage with 13 new tests focusing on validation handler lifecycle (calls, rejection, ordering, arguments, nesting, error metadata) and the new `autorequire` functionality (default, true, false, precedence, and defaults).
- Update README and CHANGELOG.md to reflect the new `autorequire` feature and its documentation.
- Synchronize `base.js` with `base.ts` for `autorequire` and handler loop logic.
- Update version in `package.json` and `package-lock.json` to 1.5.0.

FEAT: Increment version to 1.4.0

- Updated package.json and package-lock.json to reflect version 1.4.0.
- Added "data integrity" to the keywords in package.json.

REFACTOR: Implement Proxy-based validation and immutability

- Replaced direct property assignment with Proxy handlers for more robust validation and immutability enforcement.
- Introduced `createProxyHandler` for general object validation and `createArrayHandler` for array-specific validation and mutation control.
- Implemented `__safeSet__` method to allow internal safe updates within the proxy.
- Added `handlerCache` to optimize proxy handler creation for repeated paths.
- Modified the constructor to return a proxied instance of the object.
- Updated `update` method to utilize the new proxy mechanism for setting properties.
- Refactored `runValidate` to work with the new proxy system and handle nested object/array validation.
- Enhanced `createFrom` to `create` method for consistency.
- Updated benchmarks and tests to reflect the changes in object creation and updates.
- Fixed email validation regex in benchmark.
- Updated package version to 1.3.0.

feat: Enhance schema definition and validation features

- Added `required` field to `FieldConfig` for clarity in schema definitions.
- Updated `keys` and `values` in `FieldConfig` to accept functions for more flexibility.
- Introduced `Union` function for creating union types in schemas.
- Improved type inference for nested structures and simplified optional/required key handling.
- Enhanced validation logic in `Base` class to support new schema features.
- Updated benchmarks to reflect new validation scenarios and improved performance metrics.
- Refactored example files to demonstrate new features and best practices.
- Added TypeScript definitions for example files.
- Updated package metadata for versioning and repository links.

feat: Enhance error handling with custom error classes and improve va…

…lidation logic

- Added rich error handling with descriptive error classes for better semantics.
- Improved validation logic in the Base class to throw specific errors for various validation failures.
- Updated the README and CHANGELOG to reflect new features and improvements.
- Added benchmarking capabilities to measure performance of model creation and updates.
- Refactored CI workflow to streamline testing and coverage reporting.

REFACTOR: Rename package and update manifesto

- Rename the package from `@bufferpunk/schema` to `@bufferpunk/modelcore`.
- Update the `package.json` file to reflect the new package name, version, and keywords.
- Add a new `manifesto.md` file that outlines the core principles of runtime entity integrity.
- Adjust tests to align with the new package name and concepts, including:
- Renaming `parseConfig.coerce` to `coerce`.
- Adding tests for custom types like `Email`.
- Adding tests for array manipulation methods (`fill`, `push`, `unshift`, `splice`) and their validation behavior.
- Adding tests for default factories and their distinct value generation.
- Adding tests for nested validation and error handling.
- Adding tests for splice delete-only operations.
- Adding tests for array with object values enforcing nested object validation.