qdurllm @ v1.0.0-rc.0

• Switched to sparse search+reranking as per #5
• As per licensing issue in #3, we are now based on:
  • Qwen2.5-1.5B-Instruct, with Apache 2.0 license
  • nomic-ai/modernbert-embed-base, with Apache 2.0 license
  • prithivida/Splade_PP_en_v1, with Apache 2.0 license
• Issue #6 needs experimentation

Contributors: @AstraBert