Initialize repository with harness code and assets

Initial import of all source code, config, and README assets: the
packages workspace (cli, core, server, web, docs, landing, skills),
build scripts, tooling config, and CI workflows.

Includes the data-layout revision made on this branch: the local data
root defaults to ~/.penguin/data (PENGUIN_HOME still overrides; the
installer keeps its binaries in ~/.penguin), and every Agent lives
under <project>/agents/<agent>/ — path helpers, the three
agent-enumeration scans, the system prompt, built-in Skills, tests
and docs all follow the new layout.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018ihk8iQuo3kv2aPjAYEPuR

packages/web/src/router.tsx

@@ -0,0 +1,64 @@
+/**
+ * Router (react-router v7 declarative style): /login is public; all other routes go through
+ * the RequireAuth guard (redirects to /login when not authenticated) and are wrapped in
+ * ProjectProvider + AppLayout.
+ */
+import { BrowserRouter, Navigate, Route, Routes } from "react-router";
+import { useAuth } from "./state/auth";
+import { ProjectProvider } from "./state/project";
+import { SessionsProvider } from "./state/sessions";
+import { AppLayout } from "./components/layout/app-layout";
+import { LoginPage } from "./pages/login";
+import { ChatPage } from "./features/chat/chat-page";
+import { AgentsPage } from "./features/agents/agents-page";
+import { AgentSettingsPage } from "./features/agents/agent-settings-page";
+import { SkillsPage } from "./features/skills/skills-page";
+import { ModelsPage } from "./features/models/models-page";
+import { UsagePage } from "./features/usage/usage-page";
+import { TracesPage } from "./features/traces/traces-page";
+import { BenchmarkPage } from "./features/benchmark/benchmark-page";
+import { AdminUsersPage } from "./features/admin/admin-users-page";
+
+/** Route guard: shows blank while initializing, redirects to /login when not authenticated. */
+function RequireAuth() {
+  const { user } = useAuth();
+  if (user === undefined) return null; // GET /api/me is still initializing
+  if (user === null) return <Navigate to="/login" replace />;
+  return (
+    <ProjectProvider>
+      <SessionsProvider>
+        <AppLayout />
+      </SessionsProvider>
+    </ProjectProvider>
+  );
+}
+
+/** When already logged in, visiting /login redirects straight to the chat page. */
+function LoginRoute() {
+  const { user } = useAuth();
+  if (user) return <Navigate to="/chat" replace />;
+  return <LoginPage />;
+}
+
+export function AppRouter() {
+  return (
+    <BrowserRouter>
+      <Routes>
+        <Route path="/login" element={<LoginRoute />} />
+        <Route element={<RequireAuth />}>
+          <Route index element={<Navigate to="/chat" replace />} />
+          <Route path="/chat/:sessionId?" element={<ChatPage />} />
+          <Route path="/agents" element={<AgentsPage />} />
+          <Route path="/agents/:agentId" element={<AgentSettingsPage />} />
+          <Route path="/skills" element={<SkillsPage />} />
+          <Route path="/models" element={<ModelsPage />} />
+          <Route path="/usage" element={<UsagePage />} />
+          <Route path="/traces" element={<TracesPage />} />
+          <Route path="/benchmark" element={<BenchmarkPage />} />
+          <Route path="/admin/users" element={<AdminUsersPage />} />
+          <Route path="*" element={<Navigate to="/chat" replace />} />
+        </Route>
+      </Routes>
+    </BrowserRouter>
+  );
+}