Release v0.2.1

What's Changed

• fix: create supervisor directories before writing config file (b0173cb)
• fix: create nginx conf.d directory before writing config file (574a14c)
• fix: include go.sum in git for reproducible Docker builds (67570a5)
• fix: correct Docker COPY paths for go module files (e900c2a)
• fix: use environment variables to safely handle commit messages (64cc347)
• fix: handle multiline commit messages in GitHub Actions workflow (dbcef95)
• fix: eliminate all regex patterns causing bash syntax errors (56b3b44)
• fix: resolve bash syntax errors in GitHub Actions workflow (ed8af57)
• fix: implement proper multi-stage Docker build for CGO compatibility (a8e8ddb)
• fix: resolve Docker build error with CGO static linking (fcd214a)
• feat: 完成docker-auto系统全面优化与验证 (7730c42)
• fix: 继续修复TypeScript编译错误 (356→338个错误) (e7a25d8)
• fix: 修复前端TypeScript编译错误 (f0d6ae0)
• fix: simplify frontend build in Dockerfile to resolve path issues (45b6bb7)
• fix: resolve npm ci Docker build issue with explicit package file copying (476d6c2)
• feat: release v2.3.0 with complete GitHub Actions automation (dbc911a)
• fix: update GitHub Actions to monitor master branch instead of main (631f4c1)
• feat: complete GitHub Actions workflow replication from claude-relay-service (d30ecc0)