Add RetroPie configs backup from /opt/retropie/configs

키 설정·패드 매핑·에뮬 설정을 sync-configs.sh로 동기화.

Co-authored-by: Cursor <cursoragent@cursor.com>

configs/all/retroarch/autoconfig/8BitDo Ultimate Wireless Pro 2 Wired Controller.cfg

@@ -0,0 +1,57 @@
+input_device = "8BitDo Ultimate Wireless / Pro 2 Wired Controller"
+input_driver = "udev"
+input_vendor_id = "11720"
+input_product_id = "12550"
+
+# Face (Xbox layout via kernel BTN_*)
+input_b_btn = "0"
+input_a_btn = "1"
+input_y_btn = "2"
+input_x_btn = "3"
+
+# Shoulders
+input_l_btn = "4"
+input_r_btn = "5"
+
+# Arcade: Select=코인, Start=시작
+# kernel: btn6=BTN_SELECT, btn7=BTN_START
+input_select_btn = "6"
+input_start_btn = "7"
+
+# Guide / stick clicks
+input_guide_btn = "8"
+input_l3_btn = "9"
+input_r3_btn = "10"
+
+# D-pad
+input_up_btn = "h0up"
+input_down_btn = "h0down"
+input_left_btn = "h0left"
+input_right_btn = "h0right"
+
+# Sticks
+input_l_x_plus_axis = "+0"
+input_l_x_minus_axis = "-0"
+input_l_y_plus_axis = "+1"
+input_l_y_minus_axis = "-1"
+input_r_x_plus_axis = "+3"
+input_r_x_minus_axis = "-3"
+input_r_y_plus_axis = "+4"
+input_r_y_minus_axis = "-4"
+
+# RetroPie exit: Select 누른 채 Start
+input_enable_hotkey_btn = "6"
+input_exit_emulator_btn = "7"
+
+# Labels
+input_b_btn_label = "A"
+input_a_btn_label = "B"
+input_y_btn_label = "X"
+input_x_btn_label = "Y"
+input_select_btn_label = "View/Select"
+input_start_btn_label = "Menu/Start"
+input_l_btn_label = "LB"
+input_r_btn_label = "RB"
+input_l3_btn_label = "L3"
+input_r3_btn_label = "R3"
+input_guide_btn_label = "Guide"