refractor agents (#100)

* refractor agents

* minor cosmetic, add terminal ui for cli

* pump to 0.3.4

* Add temporary path

* fix unclose files in tests

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Co-authored-by: trducng <trungduc1992@gmail.com>

knowledgehub/agents/tools/wikipedia.py

@@ -48,8 +48,8 @@ class WikipediaArgs(BaseModel):
 class WikipediaTool(BaseTool):
     """Tool that adds the capability to query the Wikipedia API."""
 
-    name = "wikipedia"
-    description = (
+    name: str = "wikipedia"
+    description: str = (
         "Search engine from Wikipedia, retrieving relevant wiki page. "
         "Useful when you need to get holistic knowledge about people, "
         "places, companies, historical events, or other subjects. "