feat(transitions): tasks_ready predicate for execution loop

New TasksReady condition driven by EvaluationContext.readyTaskCount,
fed at resolve time via a kernel-declared ReadyTaskCounter interface
implemented in apps/server over TaskService (keeps core:kernel
decoupled from core:tasks). Loops a graph while ready>0, exits at 0.

frontend/src/App.tsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import SessionView from './components/session/SessionView';
+import TaskBoard from './components/task/TaskBoard';
+import WorkflowDebugger from './components/workflow/WorkflowDebugger';
+import EventTimeline from './components/state/EventTimeline';
+import { api } from './services/api';
+import { actions } from './services/actions';
+
+const App: React.FC = () => {
+  // Placeholder for routing or state management
+  return (
+    <div style={{ padding: '20px', fontFamily: 'sans-serif' }}>
+      <h1>CORREX Web Client</h1>
+      <p>Welcome to the orchestration kernel interface.</p>
+      
+      {/* Basic component placeholders */}
+      <SessionView api={api} />
+      <TaskBoard api={api} />
+      <WorkflowDebugger api={api} />
+      <EventTimeline api={api} />
+    </div>
+  );
+};
+
+export default App;