Function dynbuf_free

internal/cbm/sqlite_writer.c:345–349

}

static void dynbuf_free(DynBuf *b) {
    free(b->data);
    b->data = NULL;
    b->len = b->cap = 0;
}

// --- Record builder ---
// Builds a SQLite record: header (header_len varint + serial types) + body (values)