[router] move to mcp sdk instead (#10057)

sgl-router/src/mcp/error.rs

@@ -0,0 +1,42 @@
+use thiserror::Error;
+
+pub type McpResult<T> = Result<T, McpError>;
+
+#[derive(Debug, Error)]
+pub enum McpError {
+    #[error("Server not found: {0}")]
+    ServerNotFound(String),
+
+    #[error("Tool not found: {0}")]
+    ToolNotFound(String),
+
+    #[error("Transport error: {0}")]
+    Transport(String),
+
+    #[error("Tool execution failed: {0}")]
+    ToolExecution(String),
+
+    #[error("Connection failed: {0}")]
+    ConnectionFailed(String),
+
+    #[error("Configuration error: {0}")]
+    Config(String),
+
+    #[error("Authentication error: {0}")]
+    Auth(String),
+
+    #[error("Resource not found: {0}")]
+    ResourceNotFound(String),
+
+    #[error("Prompt not found: {0}")]
+    PromptNotFound(String),
+
+    #[error(transparent)]
+    Sdk(#[from] Box<rmcp::RmcpError>),
+
+    #[error(transparent)]
+    Io(#[from] std::io::Error),
+
+    #[error(transparent)]
+    Http(#[from] reqwest::Error),
+}