Question: what is the purpose of "stores"

[punkish]

Per the docs,

EmbedJs comes with built-in support for data persistance beyond vector embeddings. The kind of data that can be persisted includes -

• Loaders and chunks loaded and their metadata,
• Loader specific caching,
• Conversation history

What is the purpose of this datastore? I see the schema as below for the stores db but I can't figure out the use for this other than perhaps for the conversations table, in case, I want to show the users their history of questions. But, in that case, how would I identify which questions belong to which user? (assuming, I have a system with multiple users, most likely a web-based Q&A app).

CREATE TABLE conversations (
            id              TEXT PRIMARY KEY,
            conversationId  TEXT NOT NULL,
            content         TEXT NOT NULL,
            timestamp       TEXT NOT NULL,
            actor           TEXT NOT NULL,
            sources         TEXT
        );
CREATE TABLE loaders (
            id              TEXT PRIMARY KEY,
            type            TEXT NOT NULL,
            chunksProcessed INTEGER,
            metadata        TEXT
        );
CREATE TABLE loaderCustomData (
            key             TEXT PRIMARY KEY,
            loaderId        TEXT NOT NULL,
            value           TEXT
        );