fix demos, semplificata logica lista ollama

src/app/agents/models.py

@@ -1,5 +1,5 @@
 import os
-import requests
+import ollama
 from enum import Enum
 from agno.agent import Agent
 from agno.models.base import Model
@@ -30,19 +30,15 @@ class AppModels(Enum):
         Controlla quali provider di modelli LLM locali sono disponibili.
         Ritorna una lista di provider disponibili.
         """
-        ollama_host = os.getenv("OLLAMA_HOST", "http://localhost:11434")
-        result = requests.get(f"{ollama_host}/api/tags")
-        if result.status_code != 200:
-            log_warning(f"Ollama is not running or not reachable {result}")
+        try:
+            models_list = ollama.list()
+            availables = [model['model'] for model in models_list['models']]
+            app_models = [model for model in AppModels if model.name.startswith("OLLAMA")]
+            return [model for model in app_models if model.value in availables]
+        except Exception as e:
+            log_warning(f"Ollama is not running or not reachable: {e}")
             return []
 
-        availables: list[AppModels] = []
-        result = result.text
-        for model in [model for model in AppModels if model.name.startswith("OLLAMA")]:
-            if model.value in result:
-                availables.append(model)
-        return availables
-
     @staticmethod
     def availables_online() -> list['AppModels']:
         """

src/app/agents/team.py

@@ -29,7 +29,6 @@ def create_team_with(models: AppModels, coordinator: AppModels | None = None) ->
         members=[market_agent, news_agent, social_agent],
     )
 
-# TODO: migliorare le istruzioni del team
 COORDINATOR_INSTRUCTIONS = """
 You are the expert coordinator of a financial analysis team specializing in cryptocurrencies.