x86_64 cooked-v9 ISO 완료 기록 (SHA 6342ac4f)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

1.2.1 패치 릴리즈 — 바탕화면 아이콘 버그 3종 픽스

기존 1.2.0 릴리즈에 v3/v4 버그픽스 적용한 패치 버전.

- DISTRO_VERSION 1.2.0 → 1.2.1
- README 다운로드 뱃지 / Current Version 업데이트
- CHANGELOG 1.2.1 항목 신설 (1.2.0은 기능 추가, 1.2.1은 패치)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Changes to be committed:

	new file:   config/idesk/ideskrc
	new file:   config/idesk/idesktop/filemanager.lnk
	new file:   config/idesk/idesktop/firefox.lnk
	new file:   config/idesk/idesktop/terminal.lnk
	new file:   config/openbox/menu.xml
	new file:   config/openbox/rc.xml
	new file:   config/scripts/marux-desktop-refresh
	new file:   config/scripts/marux-new-desktop-item
	new file:   config/scripts/marux-wallpaper
	modified:   config/xinitrc
	new file:   scripts/build-1.2.0-67-v1.sh
	new file:   scripts/install-idesk.sh
	new file:   scripts/install-neofetch.sh

On branch main

Changes to be committed:
	modified:   ISO-BUILD-HISTORY-EN.md
	modified:   ISO-BUILD-HISTORY.md
	new file:   config/applications/battery.desktop
	modified:   config/applications/firefox.desktop
	new file:   config/applications/marux-menu.desktop
	new file:   config/applications/mc.desktop
	new file:   config/applications/network.desktop
	new file:   config/applications/volume.desktop
	new file:   config/applications/xterm.desktop
	modified:   config/tint2/tint2rc
	modified:   config/xinitrc
	new file:   scripts/add-korean-locale.sh
	new file:   scripts/build-67-v37-korean.sh
	new file:   scripts/build-67-v38.sh
	new file:   scripts/build-67-v39.sh
	new file:   scripts/build-67-v40.sh
	new file:   scripts/build-67-v41.sh
	new file:   scripts/build-67-v42.sh
	new file:   scripts/build-67-v43.sh
	new file:   scripts/build-67-v44.sh
	new file:   scripts/build-67-v45.sh
	new file:   scripts/build-67-v46.sh
	new file:   scripts/build-67-v47.sh
	new file:   scripts/build-67-v48.sh
	new file:   scripts/build-67-v49.sh
	new file:   scripts/build-67-v50.sh
	new file:   scripts/build-67-v51.sh
	new file:   scripts/build-67-v52.sh
	new file:   scripts/build-67-v53.sh
	new file:   scripts/build-67-v54.sh
	new file:   scripts/extract-release-configs.sh
	new file:   scripts/install-ibus-hangul.sh

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