Add editable PRISM homepage section

src/App.tsx

@@ -990,6 +990,49 @@ function LandingPage({ content }: { content: SiteContent }) {
         </div>
       </section>
 
+      <section className="section-prism" aria-label="PRISM featured video">
+        <div className="section-inner prism-feature">
+          <div className="prism-video-shell">
+            <video
+              className="prism-video"
+              controls
+              playsInline
+              preload="metadata"
+              poster="/images/banner.png"
+            >
+              <source src={content.prismVideoUrl || '/images/PRISM.mp4'} type="video/mp4" />
+              Your browser does not support embedded video playback.
+            </video>
+          </div>
+
+          <div className="prism-copy">
+            <p className="eyebrow">{content.prismEyebrow || 'Featured Video'}</p>
+            <h2 className="section-heading prism-heading">
+              <span className="ornament">✦</span> {content.prismHeading || 'PRISM'} <span className="ornament">✦</span>
+            </h2>
+            <p className="prism-description">
+              {content.prismIntro || 'What if every time you opened your Bible, you had a clear, repeatable method to actually dig in?'}
+            </p>
+            <p className="prism-description">
+              {content.prismPatternIntro || 'In this bonus episode, I walk you through P.R.I.S.M. — a five-step daily Bible study pattern designed to help you slow down, go deep, and let the Word do its work.'}
+            </p>
+            <div className="prism-steps" aria-label="P.R.I.S.M. steps">
+              <p>{content.prismStep1 || 'P — Pray before you read'}</p>
+              <p>{content.prismStep2 || 'R — Read slowly and observe'}</p>
+              <p>{content.prismStep3 || 'I — Interpret with context'}</p>
+              <p>{content.prismStep4 || 'S — Study and apply specifically'}</p>
+              <p>{content.prismStep5 || 'M — Memorize one verse at a time'}</p>
+            </div>
+            <p className="prism-description">
+              {content.prismOutro || "Whether you're brand new to daily Bible reading or you've been at it for years, P.R.I.S.M. gives you a consistent framework for every passage, every day."}
+            </p>
+            <p className="prism-description prism-emphasis">
+              {content.prismClosing || "The goal isn't to get through the text — it's to let the text get through to you."}
+            </p>
+          </div>
+        </div>
+      </section>
+
       <section className="section-series" id="series" aria-label="Current series">
         <div className="section-inner">
           <h2 className="section-heading">