feat: bump soul-agent to 0.1.2, add SOUL_BACKEND + OpenAI embeddings env vars

Author: menonpg

.env.example

@@ -21,3 +21,6 @@ JUPYTER_TOKEN=
 
 # Open WebUI secret key
 WEBUI_SECRET_KEY=change-me-in-production
+
+# RAG backend: bm25 (default, zero-config) | chromadb (local) | qdrant (cloud)
+SOUL_BACKEND=bm25

requirements.txt

@@ -1,4 +1,4 @@
-soul-agent>=0.1.1
+soul-agent>=0.1.2
 fastapi==0.115.0
 uvicorn[standard]==0.30.0
 python-multipart==0.0.9

soul_server/main.py

@@ -37,10 +37,15 @@ def get_agent(agent_id: str = "default"):
             soul_path=soul_path,
             memory_path=memory_path,
             mode=os.environ.get("RETRIEVAL_MODE", "auto"),
+            # RAG backend: qdrant | chromadb | bm25 (default bm25 — zero config)
+            rag_backend=os.environ.get("SOUL_BACKEND", "bm25"),
             qdrant_url=os.environ.get("QDRANT_URL", ""),
             qdrant_api_key=os.environ.get("QDRANT_API_KEY", ""),
             azure_embedding_endpoint=os.environ.get("AZURE_EMBEDDING_ENDPOINT", ""),
             azure_embedding_key=os.environ.get("AZURE_EMBEDDING_KEY", ""),
+            # OpenAI direct embeddings (alternative to Azure)
+            openai_api_key=os.environ.get("OPENAI_API_KEY", ""),
+            openai_embedding_model=os.environ.get("OPENAI_EMBEDDING_MODEL", "text-embedding-3-small"),
             collection_name=f"soul_{agent_id}",
         )
     return _agents[agent_id]