docs: new algorithm migration guides + memory evaluation (#4811)

Co-authored-by: kartik-mem0 <kartik.labhshetwar@mem0.ai>
Co-authored-by: Saket Aryan <saketaryan2002@gmail.com>

docs/integrations/agentops.mdx

@@ -50,7 +50,7 @@ local_config = {
     "llm": {
         "provider": "openai",
         "config": {
-            "model": "gpt-4.1-nano-2025-04-14",
+            "model": "gpt-5-mini",
             "temperature": 0.1,
             "max_tokens": 2000,
         },
@@ -103,7 +103,7 @@ def demonstrate_sync_memory(local_config, sample_messages, sample_preferences, u
         ]
 
         for query in search_queries:
-            results = memory.search(query, user_id=user_id)
+            results = memory.search(query, filters={"user_id": user_id})
         
             if results and "results" in results:
                 for j, result in enumerate(results['results']): 
@@ -111,7 +111,7 @@ def demonstrate_sync_memory(local_config, sample_messages, sample_preferences, u
             else:
                 print("No results found")
 
-        all_memories = memory.get_all(user_id=user_id)
+        all_memories = memory.get_all(filters={"user_id": user_id})
         if all_memories and "results" in all_memories:
             print(f"Total memories: {len(all_memories['results'])}")