feat: 增强SaaS后端功能与安全性

refactor: 重构数据库连接使用PostgreSQL替代SQLite
feat(auth): 增加JWT验证的audience和issuer检查
feat(crypto): 添加AES-256-GCM字段加密支持
feat(api): 集成utoipa实现OpenAPI文档
fix(admin): 修复配置项表单验证逻辑
style: 统一代码格式与类型定义
docs: 更新技术栈文档说明PostgreSQL

.dockerignore

@@ -0,0 +1,93 @@
+# ============================================================
+# ZCLAW SaaS Backend - Docker Ignore
+# ============================================================
+
+# Build artifacts
+target/
+
+# Frontend applications (not needed for SaaS backend)
+desktop/
+admin/
+design-system/
+
+# Node.js
+node_modules/
+.pnpm-store/
+bun.lock
+pnpm-lock.yaml
+package.json
+package-lock.json
+
+# Git
+.git/
+.gitignore
+
+# IDE and editor
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Docker
+.docker/
+docker-compose*.yml
+Dockerfile
+.dockerignore
+
+# Documentation
+docs/
+*.md
+!saas-config.toml
+CLAUDE.md
+CLAUDE*.md
+
+# Environment files (secrets)
+.env
+.env.*
+saas-env.example
+
+# Data files
+saas-data/
+saas-data.db
+saas-data.db-shm
+saas-data.db-wal
+*.db
+*.db-shm
+*.db-wal
+
+# Test artifacts
+tests/
+test-results/
+test.rs
+*.log
+
+# Temporary files
+tmp-screenshot.png
+tmp/
+temp/
+*.tmp
+
+# Claude worktree metadata
+.claude/
+plans/
+pipelines/
+scripts/
+hands/
+skills/
+plugins/
+config/
+extract.js
+extract_models.js
+extract_privacy.js
+start-all.ps1
+start.ps1
+start.sh
+Makefile
+PROGRESS.md
+CHANGELOG.md
+pencil-new.pen