core.memory.persist
===================

Parquet persistence for ``TurnVectorStore``.

Serializes the in-memory store to a single Parquet file so vector-indexed
memory survives process restarts when the user opts in via
``config.memory.persist: true``.

Schema (v1):

- ``text``: ``String`` — the plain text that was embedded.
- ``embedding``: ``List(Float64)`` — the float vector.
- ``turn``: ``String`` (JSON) — the raw turn dict, round-tripped via ``json``.
- ``metadata``: ``String`` (JSON) — the caller metadata dict.
- ``_schema_version``: ``Int8`` — always ``1`` for this version.

Functions are stateless I/O helpers; the store itself remains in-memory.

.. automodule:: ffai.core.memory.persist
   :members:
   :undoc-members:
   :show-inheritance:

Functions
---------

.. autofunction:: ffai.core.memory.persist.load_store

.. autofunction:: ffai.core.memory.persist.persist_store