chore: 하네스 settings.json + CLAUDE.md 깨진 spec 참조 제거

- .claude/settings.json: git/npm/npx/node/ls allowlist + 민감파일 deny.
- CLAUDE.md: 삭제된 realestate-targeting-enhancement-design.md 참조 제거.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/settings.json

@@ -0,0 +1,34 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(git status:*)",
+      "Bash(git diff:*)",
+      "Bash(git log:*)",
+      "Bash(git show:*)",
+      "Bash(git branch:*)",
+      "Bash(git stash list:*)",
+      "Bash(git remote -v)",
+      "Bash(npm run:*)",
+      "Bash(npm test:*)",
+      "Bash(npm install:*)",
+      "Bash(npm ci:*)",
+      "Bash(npm list:*)",
+      "Bash(npm view:*)",
+      "Bash(npm outdated:*)",
+      "Bash(npx eslint:*)",
+      "Bash(npx vite:*)",
+      "Bash(node -v)",
+      "Bash(ls:*)"
+    ],
+    "deny": [
+      "Read(.env)",
+      "Read(.env.*)",
+      "Read(**/.env)",
+      "Read(**/.env.*)",
+      "Read(**/credentials*)",
+      "Read(**/secrets*)",
+      "Read(**/*.pem)",
+      "Read(**/*.key)"
+    ]
+  }
+}