如图,\(Rt\triangle ABC\)内接于\(⊙O\),\(AC=BC\),\(∠BAC\)的平分线\(AD\)与\(⊙O\)交于点\(D\),与\(BC\)交于点\(E\),延长\(BD\),与\(AC\)的延长线交于点\(F\),连接\(CD\),\(G\)是\(CD\)的中点,连接\(OG\).
\((1)\)判断\(OG\)与\(CD\)的位置关系,写出你的结论并证明;
\((2)\)求证:\(AE=BF\);
\((3)\)若\(OG⋅DE=3(2- \sqrt {2})\),求\(⊙O\)的面积.