proxy for api-tool

-Only for api_tool for now, if this solution works well then implementation for other tools is required
- Need to check api keys creation with the current proxies
- Show connection string example at creation
- locale needs updates for other languages

application/agents/agent_creator.py

@@ -11,4 +11,7 @@ class AgentCreator:
         agent_class = cls.agents.get(type.lower())
         if not agent_class:
             raise ValueError(f"No agent class found for type {type}")
+        config = kwargs.pop('config', None)
+        if isinstance(config, dict) and 'proxy_id' in config and 'proxy_id' not in kwargs:
+            kwargs['proxy_id'] = config['proxy_id']
         return agent_class(*args, **kwargs)