Provide Decky automatic JSX runtime in Framey panel

tests/page/framey_actions.mjs

@@ -19,6 +19,15 @@ const context=vm.createContext({window,document:{getElementById:id=>{
   navigator:{language:'en'}, parent,addEventListener:(type,handler)=>listeners.push({type,handler}),
   setTimeout:()=>1,clearTimeout(){}});
 vm.runInContext(testSource,context);
+// Official @decky/rollup bundles use the automatic JSX runtime, including keyed lists.
+const jsx=window.SP_JSX.jsx('p',{id:'message',children:'Saved'},'message-key');
+assert.equal(jsx.type,'p');
+assert.equal(jsx.props.id,'message');
+assert.equal(jsx.props.key,'message-key');
+assert.deepEqual(jsx.children,['Saved']);
+const fragments=window.SP_JSX.jsxs(window.SP_JSX.Fragment,{children:['one','two']});
+assert.equal(fragments.type,React.Fragment);
+assert.deepEqual(fragments.children,[['one','two']]);
 const nodes=(tree,type)=>[...(tree?.type===type?[tree]:[]),...(tree?.children||[]).flatMap(child=>nodes(child,type))];
 let called=0;
 const plugin={content:{type:'content'},settings:{type:'settings'},titleView:{type:'title'},

ui/framey-host.js

@@ -3,6 +3,14 @@
   'use strict';
   const R = window.SP_REACT = window.React;
   window.SP_REACTDOM = window.ReactDOM;
+  const jsx = (type, props, key) => {
+    const {children, ...elementProps} = props || {};
+    if (key !== undefined) elementProps.key = key;
+    return Object.prototype.hasOwnProperty.call(props || {}, 'children')
+      ? R.createElement(type, elementProps, children)
+      : R.createElement(type, elementProps);
+  };
+  window.SP_JSX = {jsx, jsxs:jsx, Fragment:R.Fragment};
   window.LocalizationManager = {m_rgLocalesToUse:[navigator.language || 'en']};
   const root = document.getElementById('framey-root');
   const error = document.getElementById('framey-error');