feat(SEP-973): add support for icons and websiteUrl across relevant types (#432)

examples/clients/src/sse.rs

@@ -24,6 +24,8 @@ async fn main() -> Result<()> {
             name: "test sse client".to_string(),
             title: None,
             version: "0.0.1".to_string(),
+            website_url: None,
+            icons: None,
         },
     };
     let client = client_info.serve(transport).await.inspect_err(|e| {

examples/clients/src/streamable_http.rs

@@ -24,6 +24,8 @@ async fn main() -> Result<()> {
             name: "test sse client".to_string(),
             title: None,
             version: "0.0.1".to_string(),
+            website_url: None,
+            icons: None,
         },
     };
     let client = client_info.serve(transport).await.inspect_err(|e| {

examples/servers/src/sampling_stdio.rs

@@ -122,6 +122,7 @@ impl ServerHandler for SamplingDemoServer {
                 ),
                 output_schema: None,
                 annotations: None,
+                icons: None,
             }],
             next_cursor: None,
         })