에이전트 협업 인프라 구축 — .claude/ 확장

- PLAN.md · PROGRESS.md 도입: 병렬 에이전트 조정 지점
- CLAUDE.md 린화 + 에이전트 작업 흐름 섹션 (상세는 Output/guides/로 분리)
- Output/guides/cimery-dev-guide.md, obsidian-cli.md 신설
- Agents: cimery-architect-researcher, adr-drafter
- Commands: /plan, /progress, /adr, /research, /cimery-start
- Skill: plan-commit
- Hooks: raw/ 쓰기 차단, SessionStart PLAN/PROGRESS 주입,
  wiki/ADR 변경 시 log 갱신 알림, auto-approve (deny 훅 우선 유지)
- .gitignore: .claude/ 공유 자산 포함, 로컬 상태·바이너리만 유지 제외

Closes #3

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/hooks/wiki-log-reminder.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# PostToolUse(Write|Edit): remind to update wiki/log.md and PROGRESS.md
+# when wiki pages or Output/reports/ADRs are modified
+
+json=$(cat)
+
+path=$(printf '%s' "$json" | grep -o '"file_path"[[:space:]]*:[[:space:]]*"[^"]*"' | head -1 | sed 's/.*"file_path"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/')
+
+if [ -z "$path" ]; then
+  exit 0
+fi
+
+path_norm=$(printf '%s' "$path" | tr '\\' '/')
+
+# Skip the log/index themselves — they ARE the trackers
+case "$path_norm" in
+  */wiki/log.md|*/wiki/index.md|*/PROGRESS.md|*/PLAN.md)
+    exit 0
+    ;;
+esac
+
+case "$path_norm" in
+  */wiki/*|*/Output/reports/*|*/Output/guides/*)
+    fname=$(basename "$path_norm")
+    # Minimal JSON — no escaping of special chars needed since message is literal
+    printf '{"hookSpecificOutput":{"hookEventName":"PostToolUse","additionalContext":"Reminder: %s 변경됨. wiki/log.md 기록 + PROGRESS.md 갱신 여부 확인."}}\n' "$fname"
+    exit 0
+    ;;
+esac
+
+exit 0