Add testimonials section and Q&A submit CTA; v1.0.8

- Testimonials: new Testimonial type, CMS field, admin UI under About,
  and TestimonialsSection rendered on homepage and About page (hidden when empty)
- Q&A: "Submit a Question →" CTA at bottom of Q&A page linking to /contact

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

src/App.css

@@ -1370,6 +1370,83 @@
   box-sizing: border-box;
 }
 
+/* ── Testimonials ── */
+.section-testimonials {
+  padding: 4rem 0;
+  background: #0a0a0a;
+  border-top: 1px solid rgba(201, 168, 76, 0.12);
+  border-bottom: 1px solid rgba(201, 168, 76, 0.12);
+}
+
+.testimonials-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
+  gap: 1.5rem;
+  margin-top: 2rem;
+}
+
+.testimonial-card {
+  background: rgba(201, 168, 76, 0.05);
+  border: 1px solid rgba(201, 168, 76, 0.18);
+  border-radius: 12px;
+  padding: 1.5rem;
+  margin: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+}
+
+.testimonial-quote {
+  font-family: var(--brand-font-body);
+  font-size: 0.97rem;
+  line-height: 1.7;
+  color: var(--brand-warm-white);
+  font-style: italic;
+  margin: 0;
+}
+
+.testimonial-footer {
+  display: flex;
+  flex-direction: column;
+  gap: 0.2rem;
+  margin-top: auto;
+}
+
+.testimonial-name {
+  font-family: var(--brand-font-body);
+  font-size: 0.85rem;
+  color: #d8c395;
+  font-weight: 600;
+}
+
+.testimonial-source {
+  font-size: 0.78rem;
+  color: rgba(201, 168, 76, 0.55);
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+}
+
+/* ── Q&A submit CTA ── */
+.qa-submit-cta {
+  margin-top: 3rem;
+  padding: 2rem;
+  border: 1px solid rgba(201, 168, 76, 0.2);
+  border-radius: 12px;
+  background: rgba(201, 168, 76, 0.04);
+  text-align: center;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1rem;
+}
+
+.qa-submit-cta-text {
+  font-family: var(--brand-font-body);
+  font-size: 1rem;
+  color: var(--brand-warm-white);
+  margin: 0;
+}
+
 .section-share {
   background: #080808;
   border-top: 1px solid rgba(201, 168, 76, 0.18);