Package Remember's symbolic kernel as a distributable module

[blackboxprogramming]

Description

Currently, the Remember project exposes its symbolic kernel as a single Python file without any packaging or installation instructions. This makes it difficult to reuse the functions in other projects. We should package the symbolic kernel as a proper Python module that can be installed via pip.

Proposed work

• Restructure the repository to include a package directory (e.g., remember/ or symbolic_kernel/) containing __init__.py and the existing symbolic_kernel.py file. Expose relevant functions in __init__.py for convenient imports.
• Create a setup.py or pyproject.toml with package metadata (name, version, description, author, license) and specify required dependencies.
• Add a requirements.txt file if there are external dependencies and ensure they are pinned to compatible versions.
• Update the README with instructions on installing the package locally (e.g., pip install -e .) and a brief usage example.
• Optionally set up a build script or GitHub Action to build a source distribution and wheel (publishing to PyPI can be considered later but is not required for this task).

Acceptance criteria

• Developers can install the symbolic kernel module locally using pip install -e . and import its functions (from remember import valence, etc.).
• Package metadata is complete and passes basic packaging checks (python -m pip install . works without errors).
• The repository contains a clear README describing installation and usage.