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

crates/zclaw-saas/Cargo.toml

@@ -9,8 +9,6 @@ name = "zclaw-saas"
 path = "src/main.rs"
 
 [dependencies]
-zclaw-types = { workspace = true }
-
 tokio = { workspace = true }
 futures = { workspace = true }
 serde = { workspace = true }
@@ -23,7 +21,6 @@ chrono = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
 sqlx = { workspace = true }
-libsqlite3-sys = { workspace = true }
 reqwest = { workspace = true }
 secrecy = { workspace = true }
 sha2 = { workspace = true }
@@ -34,6 +31,8 @@ url = "2"
 
 axum = { workspace = true }
 axum-extra = { workspace = true }
+bytes = { workspace = true }
+async-stream = { workspace = true }
 tower = { workspace = true }
 tower-http = { workspace = true }
 jsonwebtoken = { workspace = true }
@@ -41,6 +40,9 @@ argon2 = { workspace = true }
 totp-rs = { workspace = true }
 urlencoding = "2"
 data-encoding = "2"
+aes-gcm = { workspace = true }
+utoipa = { version = "5", features = ["axum_extras"] }
+utoipa-swagger-ui = { version = "5", features = ["axum"] }
 
 [dev-dependencies]
 tempfile = { workspace = true }