rebuild app as turbopack-first single-stack with internal api and openclaw tasks

frontend/app/auth/signin/page.tsx

@@ -1,86 +1,32 @@
 'use client';
 
 import Link from 'next/link';
-import { useEffect, useState } from 'react';
-import { useRouter } from 'next/navigation';
-import { signIn, useSession } from '@/lib/better-auth';
 import { AuthShell } from '@/components/auth/auth-shell';
-import { Input } from '@/components/ui/input';
 import { Button } from '@/components/ui/button';
 
 export default function SignInPage() {
-  const router = useRouter();
-  const { data: session, isPending: sessionPending } = useSession();
-
-  const [email, setEmail] = useState('');
-  const [password, setPassword] = useState('');
-  const [loading, setLoading] = useState(false);
-  const [error, setError] = useState<string | null>(null);
-
-  useEffect(() => {
-    if (!sessionPending && session?.user) {
-      router.replace('/');
-    }
-  }, [sessionPending, session, router]);
-
-  const handleSubmit = async (event: React.FormEvent<HTMLFormElement>) => {
-    event.preventDefault();
-    setLoading(true);
-    setError(null);
-
-    try {
-      const result = await signIn.email({ email, password });
-
-      if (result.error) {
-        setError(result.error.message || 'Invalid credentials');
-      } else {
-        router.replace('/');
-        router.refresh();
-      }
-    } catch {
-      setError('Sign in failed');
-    } finally {
-      setLoading(false);
-    }
-  };
-
   return (
     <AuthShell
-      title="Sign in"
-      subtitle="Authenticate with Better Auth session-backed credentials."
+      title="Local Runtime Mode"
+      subtitle="Authentication is disabled in this rebuilt local-first environment."
       footer={(
         <>
-          No account yet?{' '}
-          <Link href="/auth/signup" className="text-[color:var(--accent)] hover:text-[color:var(--accent-strong)]">
-            Create one
+          Need multi-user auth later?{' '}
+          <Link href="/" className="text-[color:var(--accent)] hover:text-[color:var(--accent-strong)]">
+            Open command center
           </Link>
         </>
       )}
     >
-      <form onSubmit={handleSubmit} className="space-y-4">
-        <div>
-          <label className="mb-1 block text-sm text-[color:var(--terminal-muted)]">Email</label>
-          <Input type="email" required value={email} onChange={(event) => setEmail(event.target.value)} placeholder="you@company.com" />
-        </div>
+      <p className="text-sm text-[color:var(--terminal-muted)]">
+        Continue directly into the fiscal terminal. API routes are same-origin and task execution is fully local with OpenClaw support.
+      </p>
 
-        <div>
-          <label className="mb-1 block text-sm text-[color:var(--terminal-muted)]">Password</label>
-          <Input
-            type="password"
-            required
-            minLength={8}
-            value={password}
-            onChange={(event) => setPassword(event.target.value)}
-            placeholder="********"
-          />
-        </div>
-
-        {error ? <p className="text-sm text-[#ff9f9f]">{error}</p> : null}
-
-        <Button type="submit" className="w-full" disabled={loading || sessionPending}>
-          {loading ? 'Signing in...' : 'Sign in'}
+      <Link href="/" className="mt-6 block">
+        <Button type="button" className="w-full">
+          Enter terminal
         </Button>
-      </form>
+      </Link>
     </AuthShell>
   );
 }