1)
What are the conotations of the "Asah li"?
1.
Rashi: It means 'amassed' (or acquired - Targum onkelos and Targum Yonasan) for me'.
2)
What is "ha'Chayil ha'Zeh" referring to?
1.
Rashi (in Vayishlach Bereishis, 34:29): It means 'this wealth' (or 'this property' - Targum Onkelos and Targum Yonasan).