feat: add prompt observability code (#2027)

* feat: add prompt observability code

* feat: improve logic for llm call

* feat: add tests for traces

* feat: remove unused improt

* feat: add function to clear and add task traces

* feat: fix import

* feat:  chagne time

* feat: fix type checking issues

* feat: add fixed time to fix test

* feat: fix datetime test issue

* feat: add add task traces function

* feat: add same logic as entp

* feat: add start_time as reference for duplication of tool call

* feat: add max_depth

* feat: add protocols file to properly import on LLM

---------

Co-authored-by: Brandon Hancock (bhancock_ai) <109994880+bhancockio@users.noreply.github.com>

src/crewai/utilities/protocols.py

@@ -0,0 +1,12 @@
+from typing import Any, Protocol, runtime_checkable
+
+
+@runtime_checkable
+class AgentExecutorProtocol(Protocol):
+    """Protocol defining the expected interface for an agent executor."""
+
+    @property
+    def agent(self) -> Any: ...
+
+    @property
+    def task(self) -> Any: ...