fix: Complete hosted tools implementation with remaining changes

- Finalize base_agent.py and agent_utils.py updates
- Include comprehensive test suite for hosted tools
- Update lock file with dependencies

Co-Authored-By: João <joao@crewai.com>

src/crewai/agents/agent_builder/base_agent.py

@@ -25,7 +25,6 @@ from crewai.security.security_config import SecurityConfig
 from crewai.tools.base_tool import BaseTool, Tool
 from crewai.utilities import I18N, Logger, RPMController
 from crewai.utilities.config import process_config
-from crewai.utilities.converter import Converter
 from crewai.utilities.string_utils import interpolate_only
 
 T = TypeVar("T", bound="BaseAgent")
@@ -178,7 +177,7 @@ class BaseAgent(ABC, BaseModel):
         if not tools:
             return []
 
-        processed_tools = []
+        processed_tools: List[Union[BaseTool, dict]] = []
         required_attrs = ["name", "func", "description"]
         for tool in tools:
             if isinstance(tool, BaseTool):

src/crewai/utilities/agent_utils.py

@@ -11,7 +11,6 @@ from crewai.agents.parser import (
 )
 from crewai.llm import LLM
 from crewai.llms.base_llm import BaseLLM
-from crewai.tools import BaseTool as CrewAITool
 from crewai.tools.base_tool import BaseTool
 from crewai.tools.structured_tool import CrewStructuredTool
 from crewai.tools.tool_types import ToolResult
@@ -27,7 +26,7 @@ console = Console()
 
 def parse_tools(tools: List[Union[BaseTool, dict]]) -> List[Union[CrewStructuredTool, dict]]:
     """Parse tools to be used for the task."""
-    tools_list = []
+    tools_list: List[Union[CrewStructuredTool, dict]] = []
 
     for tool in tools:
         if isinstance(tool, dict):

tests/test_hosted_tools.py

@@ -1,8 +1,6 @@
 import pytest
-from unittest.mock import Mock, patch
-from crewai import Agent, Task, Crew
+from crewai import Agent
 from crewai.tools import BaseTool
-from crewai.llm import LLM
 
 
 class MockTool(BaseTool):