feat(02-02): add ContactSection client component and wire into homepage

- Create src/app/_components/ContactSection.tsx: useActionState form with
  name, email, phone, message fields and gold Send Message button
- Honeypot field (name="website") with display:none, tabIndex=-1, autoComplete="off"
- Success state: form replaced by thank-you message on successful submission
- Error state: inline alert for validation failures
- page.tsx: replace <section id="contact" /> stub with <ContactSection />
- useActionState imported from 'react' (not react-dom, React 19 compatible)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

teressa-copeland-homes/src/app/_components/ContactSection.tsx

@@ -0,0 +1,77 @@
+'use client'
+import { useActionState } from 'react'
+import { submitContact, type ContactState } from '@/lib/contact-action'
+
+const initialState: ContactState = { status: 'idle' }
+
+export function ContactSection() {
+  const [state, action, pending] = useActionState(submitContact, initialState)
+
+  return (
+    <section id="contact" style={{ backgroundColor: '#FAF9F7', padding: '4rem 2rem' }}>
+      <div style={{ maxWidth: '600px', margin: '0 auto' }}>
+        <h2 style={{ color: '#1B2B4B', marginBottom: '0.5rem' }}>Get in Touch</h2>
+        <p style={{ color: '#555', marginBottom: '2rem' }}>
+          Ready to find your Utah home? Teressa is here to help.
+        </p>
+
+        {state.status === 'success' ? (
+          <div
+            role="status"
+            style={{
+              padding: '2rem',
+              backgroundColor: '#e8f5e9',
+              borderRadius: '8px',
+              color: '#2e7d32',
+              textAlign: 'center',
+            }}
+          >
+            <p style={{ fontSize: '1.1rem', fontWeight: 600 }}>
+              Thanks! Teressa will be in touch soon.
+            </p>
+          </div>
+        ) : (
+          <form action={action} style={{ display: 'flex', flexDirection: 'column', gap: '1rem' }}>
+            {/* Honeypot — hidden from humans, bots fill it in */}
+            <input
+              name="website"
+              type="text"
+              style={{ display: 'none' }}
+              tabIndex={-1}
+              autoComplete="off"
+              aria-hidden="true"
+            />
+
+            <input name="name" type="text" required placeholder="Your full name" />
+            <input name="email" type="email" required placeholder="Email address" />
+            <input name="phone" type="tel" required placeholder="Phone number" />
+            <textarea name="message" required placeholder="How can Teressa help you?" rows={5} />
+
+            {state.status === 'error' && (
+              <p role="alert" style={{ color: '#c62828' }}>
+                {state.message}
+              </p>
+            )}
+
+            <button
+              type="submit"
+              disabled={pending}
+              style={{
+                backgroundColor: '#C9A84C',
+                color: '#1B2B4B',
+                padding: '0.75rem 2rem',
+                border: 'none',
+                borderRadius: '4px',
+                fontWeight: 700,
+                cursor: pending ? 'not-allowed' : 'pointer',
+                opacity: pending ? 0.7 : 1,
+              }}
+            >
+              {pending ? 'Sending...' : 'Send Message'}
+            </button>
+          </form>
+        )}
+      </div>
+    </section>
+  )
+}