New archi: domain driven development

Working but need to check out code

app.py

@@ -8,15 +8,26 @@ from fastapi import FastAPI, Request
 from fastapi.responses import JSONResponse, StreamingResponse
 
 from agent.llm.deepseek import DeepSeekClient
-from agent.memory import Memory
+from agent.llm.ollama import OllamaClient
+from infrastructure.persistence.memory import Memory
 from agent.agent import Agent
+import os
 
 app = FastAPI(
     title="LibreChat Agent Backend",
     version="0.1.0",
 )
 
-llm = DeepSeekClient()
+# Choose LLM based on environment variable
+llm_provider = os.getenv("LLM_PROVIDER", "deepseek").lower()
+
+if llm_provider == "ollama":
+    print("🦙 Using Ollama LLM")
+    llm = OllamaClient()
+else:
+    print("🤖 Using DeepSeek LLM")
+    llm = DeepSeekClient()
+
 memory = Memory()
 agent = Agent(llm=llm, memory=memory)