feat(settings-audit): Add Claude Code settings optimizer skill

- Add new 00-claude-code-setting skill for token usage optimization
- Includes audit scripts for MCP servers, CLAUDE.md, and extensions
- Auto-fix capability with backup for serverInstructions and frontmatter
- Add YAML frontmatter to 17 command files
- Target: keep baseline under 30% of 200K context limit

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -17,7 +17,10 @@
       "Bash(ls:*)",
       "Bash(cat:*)",
       "Bash(git commit:*)",
-      "Bash(git reset:*)"
+      "Bash(git reset:*)",
+      "Bash(git push:*)",
+      "Bash(chmod:*)",
+      "Bash(python3:*)"
     ]
   }
 }