chore: add #[non_exhaustive] and mutation methods to improve compatibility (#715)

* chore: add #[non_exhaustive] to reduce backwards-incompatible changes going forward

* fix: remove ProtocolVersion import

* fix: add a few more with_ mutator methods

---------

Co-authored-by: Alex Hancock <alexhancock@block.xyz>

examples/rig-integration/src/mcp_adaptor.rs

@@ -41,13 +41,11 @@ impl RigTool for McpToolAdaptor {
         let server = self.server.clone();
         Box::pin(async move {
             let call_mcp_tool_result = server
-                .call_tool(CallToolRequestParams {
-                    meta: None,
-                    name: self.tool.name.clone(),
-                    arguments: serde_json::from_str(&args)
-                        .map_err(rig::tool::ToolError::JsonError)?,
-                    task: None,
-                })
+                .call_tool(
+                    CallToolRequestParams::new(self.tool.name.clone()).with_arguments(
+                        serde_json::from_str(&args).map_err(rig::tool::ToolError::JsonError)?,
+                    ),
+                )
                 .await
                 .inspect(|result| tracing::info!(?result))
                 .inspect_err(|error| tracing::error!(%error))