feat: Conform python package to modern standards

AUDIT.md

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+# Python Packaging Audit Report
+
+This document outlines the results of an audit of the repository against modern Python packaging standards (PEP 517, PEP 518, PEP 621, PEP 508, and PEP 660).
+
+## Phase 1: Assessment Checklist (Audit)
+
+### 1. Central Configuration and Legacy Files
+- **`pyproject.toml`**: **[PASS]** A `pyproject.toml` file exists at the root, which is mandatory for modern packaging.
+- **Legacy Files**: **[PASS]** `setup.py`, `setup.cfg`, and `requirements.txt` are not used for core metadata or dependency management. All configuration is correctly centralized in `pyproject.toml`.
+- **`poetry.lock`**: **[FAIL]** A `poetry.lock` file is present. This is a legacy artifact from a previous Poetry-based setup and is inconsistent with the current `setuptools` build backend. It must be removed.
+- **`MANIFEST.in`**: **[PASS]** This file is not present.
+
+### 2. Build System (PEP 517 & PEP 518)
+- **`[build-system]` Table**: **[PASS]** This table is present in `pyproject.toml`.
+- **`build-backend`**: **[PASS]** A modern, PEP 517-compliant backend, `setuptools.build_meta`, is specified.
+- **`requires`**: **[PASS]** The build dependencies are correctly listed as `["setuptools>=61.0"]`.
+
+### 3. Project Metadata (PEP 621)
+- **`[project]` Table**: **[PASS]** This table is present in `pyproject.toml`.
+- **Core Metadata**: **[PASS]** All required fields (`name`, `version`, `authors`, `description`, `readme`, `requires-python`, `license`) are present and statically defined.
+- **`readme`**: **[PASS]** The `readme` field correctly points to `README.md`.
+- **Classifiers**: **[PASS]** Appropriate Trove classifiers are included.
+- **`[project.urls]`**: **[PASS]** Relevant URLs are included.
+- **Entry Points**: **[PASS]** No entry points are defined, which is appropriate for this project.
+
+### 4. Dependencies (PEP 508)
+- **`dependencies`**: **[PASS]** Runtime dependencies are correctly specified as an empty array.
+- **`optional-dependencies`**: **[PASS]** Extras for development are correctly defined in `[project.optional-dependencies]`.
+
+### 5. Project Structure and Layout
+- **Layout**: **[PASS]** The project uses the recommended `src` layout (`src/my_python_project/`).
+- **`__init__.py`**: **[PASS]** The `__init__.py` file is correctly used to define a regular package.
+
+### 6. Testing Configuration
+- **Location**: **[PASS]** The test suite is located in a top-level `tests/` directory.
+- **Framework**: **[PASS]** `pytest` is used as the testing framework.
+- **Configuration**: **[PASS]** The testing configuration is centralized in `[tool.pytest.ini_options]` within `pyproject.toml`.
+
+## Conclusion
+The project is already in excellent condition and fully compliant with modern Python packaging standards. The only required action is the removal of the legacy `poetry.lock` file. No further refactoring is necessary.
+
+## Phase 3: Conformance Verification
+
+- **[X] Standards Compliance and Configuration**: `pyproject.toml` is the primary source of truth, the `[build-system]` is correctly configured, and all legacy configuration files have been removed.
+- **[X] Structure and Discoverability**: The project utilizes the `src` layout, and the build backend is correctly configured to discover packages.
+- **[X] Build Integrity**: The package builds successfully into both sdist and wheel formats using `python3 -m build`. The generated artifacts correctly include the source code, `LICENSE`, and `README` files.
+- **[X] Installation and Testing**: The package can be installed in a fresh virtual environment and in editable mode. The test suite runs successfully against the installed package.