feat!: add MRTR model types (SEP-2322) (#915)

* feat!: add SEP-2322 MRTR model types

* feat!: remove URLElicitationRequiredError (SEP-2322)

crates/rmcp-macros/src/prompt_handler.rs

@@ -61,6 +61,7 @@ pub fn prompt_handler(attr: TokenStream, input: TokenStream) -> syn::Result<Toke
         ) -> Result<rmcp::model::ListPromptsResult, rmcp::ErrorData> {
             let prompts = #router_expr.list_all();
             Ok(rmcp::model::ListPromptsResult {
+                result_type: Default::default(),
                 prompts,
                 meta: #meta,
                 next_cursor: None,

crates/rmcp-macros/src/tool_handler.rs

@@ -69,6 +69,7 @@ pub fn tool_handler(attr: TokenStream, input: TokenStream) -> syn::Result<TokenS
                 _context: rmcp::service::RequestContext<rmcp::RoleServer>,
             ) -> Result<rmcp::model::ListToolsResult, rmcp::ErrorData> {
                 Ok(rmcp::model::ListToolsResult{
+                    result_type: Default::default(),
                     tools: #router.list_all(),
                     meta: #result_meta,
                     next_cursor: None,