Refactor trusted-proxies: modernize utils, improve safety, and fix clippy lints (#1693)

Co-authored-by: majinghe <42570491+majinghe@users.noreply.github.com>
Co-authored-by: GatewayJ <835269233@qq.com>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: houseme <4829346+houseme@users.noreply.github.com>
Co-authored-by: heihutu <30542132+heihutu@users.noreply.github.com>

crates/crypto/src/error.rs

@@ -20,6 +20,12 @@ pub enum Error {
     #[error("invalid encryption algorithm ID: {0}")]
     ErrInvalidAlgID(u8),
 
+    #[error("invalid input: {0}")]
+    ErrInvalidInput(String),
+
+    #[error("invalid key length")]
+    ErrInvalidKeyLength,
+
     #[cfg(any(test, feature = "crypto"))]
     #[error("{0}")]
     ErrInvalidLength(#[from] sha2::digest::InvalidLength),
@@ -38,4 +44,13 @@ pub enum Error {
 
     #[error("jwt err: {0}")]
     ErrJwt(#[from] jsonwebtoken::errors::Error),
+
+    #[error("io error: {0}")]
+    ErrIo(#[from] std::io::Error),
+
+    #[error("invalid signature")]
+    ErrInvalidSignature,
+
+    #[error("invalid token")]
+    ErrInvalidToken,
 }