feat(web): polish login page — blink cursor, GH icon, Enter shortcut (#49)

Clarifies the product pitch: "Interactive skills for your pull requests
— review, challenge, quiz, powered by Claude Code", so visitors see it
as a skills platform, not just a Claude Code wrapper. Adds a blinking
terminal cursor after the wordmark, the GitHub logo inside the primary
CTA, and an Enter keybind with a keycap hint for keyboard-first users.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: mariuspruvot

apps/web/src/features/auth/LoginPage.test.tsx

@@ -22,8 +22,14 @@ describe('LoginPage', () => {
     expect(link.getAttribute('href')).toContain('github.com/mariuspruvot/helprs')
   })
 
-  test('renders tagline', () => {
+  test('renders tagline explaining interactive skills', () => {
     const { container } = render(<LoginPage />)
+    expect(container.textContent).toContain('Interactive skills')
     expect(container.textContent).toContain('Self-hosted')
   })
+
+  test('renders enter-to-continue hint', () => {
+    const { container } = render(<LoginPage />)
+    expect(container.textContent?.toLowerCase()).toContain('enter')
+  })
 })

apps/web/src/features/auth/LoginPage.tsx

@@ -1,28 +1,69 @@
+import { useEffect } from 'react'
 import { Button, GrainOverlay } from '../../shared/components'
 
 const API_BASE = import.meta.env.VITE_API_URL ?? 'http://localhost:8000'
 const GITHUB_URL = 'https://github.com/mariuspruvot/helprs'
+const SIGN_IN_URL = `${API_BASE}/api/v1/auth/github`
+
+function GitHubIcon() {
+  return (
+    <svg viewBox="0 0 16 16" width="16" height="16" fill="currentColor" aria-hidden="true">
+      <path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82A7.62 7.62 0 0 1 8 3.85c.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.01 8.01 0 0 0 16 8c0-4.42-3.58-8-8-8z" />
+    </svg>
+  )
+}
 
 export default function LoginPage() {
+  useEffect(() => {
+    const handler = (e: KeyboardEvent) => {
+      if (e.key !== 'Enter' || e.defaultPrevented) return
+      const tag = (e.target as HTMLElement | null)?.tagName
+      if (tag === 'A' || tag === 'BUTTON' || tag === 'INPUT' || tag === 'TEXTAREA') return
+      window.location.href = SIGN_IN_URL
+    }
+    window.addEventListener('keydown', handler)
+    return () => window.removeEventListener('keydown', handler)
+  }, [])
+
   return (
     <div className="relative min-h-screen bg-bg text-ink font-sans flex flex-col items-center justify-center px-6">
       <GrainOverlay />
 
       <main className="relative flex flex-col items-center text-center max-w-md w-full">
-        <span className="font-mono text-3xl font-bold text-accent tracking-tight">helPRs</span>
+        <h1 className="font-mono text-3xl font-bold text-accent tracking-tight inline-flex items-center">
+          helPRs
+          <span
+            className="ml-1 inline-block w-[0.55ch] h-[1.1rem] bg-accent align-middle animate-cursor"
+            aria-hidden="true"
+          />
+        </h1>
         <p className="mt-4 text-ink2 text-sm leading-relaxed font-mono">
-          Claude Code on your PRs. Self-hosted.
+          Interactive skills for your pull requests.
+        </p>
+        <p className="mt-1 text-dim text-xs font-mono">
+          Review, challenge, quiz {'\u2014'} powered by Claude Code. Self-hosted.
         </p>
 
-        <a href={`${API_BASE}/api/v1/auth/github`} className="mt-10 w-full sm:w-auto">
-          <Button className="w-full sm:w-auto px-6 py-3">Sign in with GitHub</Button>
+        <a href={SIGN_IN_URL} className="mt-10 w-full sm:w-auto">
+          <Button className="w-full sm:w-auto px-6 py-3">
+            <GitHubIcon />
+            Sign in with GitHub
+          </Button>
         </a>
 
+        <p className="mt-4 font-mono text-xs text-dim">
+          press{' '}
+          <kbd className="px-1.5 py-0.5 rounded border border-rule-str text-ink2 text-[10px]">
+            {'\u21B5'} enter
+          </kbd>{' '}
+          to continue
+        </p>
+
         <a
           href={GITHUB_URL}
           target="_blank"
           rel="noopener noreferrer"
-          className="mt-6 font-mono text-xs text-dim hover:text-ink2 transition-colors"
+          className="mt-8 font-mono text-xs text-dim hover:text-ink2 transition-colors"
         >
           View on GitHub {'\u2192'}
         </a>

apps/web/src/index.css

@@ -153,6 +153,14 @@ html, body, #root {
   50% { opacity: 0.3; }
 }
 
+/* Terminal cursor blink */
+@keyframes cursor-blink {
+  50% { opacity: 0; }
+}
+.animate-cursor {
+  animation: cursor-blink 1.1s steps(2, end) infinite;
+}
+
 /* Overline letter-spacing */
 .overline {
   font-family: var(--font-family-mono);