Update Qwen2.5-3B-Instruct PersonaMem-128K reader from validation-selected optimization

Update Qwen3-4B PersonaMem-128K reader from validation-selected optimization

Promote validation-selected Qwen2.5-7B-Instruct PersonaMem-32K reader

Promote validation-selected Qwen2.5-3B-Instruct PersonaMem-32K reader

Promote validation-selected Qwen3-4B PersonaMem-32K checkpoint to default

Align model documentation and bundle names with the simplified MemFold workflow

Link MemFold weights to the new MemFold code repository

Release MemFold main-result adapters and matching memory components

initial commit