docs: 기본 파일 구조, .gitignore, CLAUDE.md, README.md, 및 작업 관리 시스템을 위한 설정 파일 추가

.claude/commands/task/done.md

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+---
+allowed-tools: mcp__taskmaster-ai__set_task_status, mcp__taskmaster-ai__next_task, TodoWrite
+description: Mark task as complete and optionally get next task
+---
+
+# Task Done
+
+**User Request:** $ARGUMENTS
+
+## Goal
+
+Mark task(s) as complete. By default, also shows the next task.
+
+## What You Can Say
+
+```
+/done 3                    # Mark task 3 as done, show next
+/done 3 stop               # Mark done, don't show next
+/done 5,7,9               # Mark multiple tasks done
+/done                     # Mark current task done (if tracking)
+```