feat(webdav): add WebDAV protocol gateway (#2158)

Signed-off-by: yxrxy <1532529704@qq.com>
Co-authored-by: houseme <housemecn@gmail.com>
Co-authored-by: 马登山 <Cxymds@qq.com>
Co-authored-by: heihutu <30542132+heihutu@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: 安正超 <anzhengchao@gmail.com>

crates/protocols/src/lib.rs

@@ -23,6 +23,9 @@ pub mod ftps;
 #[cfg(feature = "swift")]
 pub mod swift;
 
+#[cfg(feature = "webdav")]
+pub mod webdav;
+
 pub use common::session::Protocol;
 pub use common::{AuthorizationError, ProtocolPrincipal, S3Action, SessionContext, authorize_operation};
 
@@ -31,3 +34,6 @@ pub use ftps::{config::FtpsConfig, server::FtpsServer};
 
 #[cfg(feature = "swift")]
 pub use swift::handler::SwiftService;
+
+#[cfg(feature = "webdav")]
+pub use webdav::{config::WebDavConfig, server::WebDavServer};