feat: redesign technique page - meta stats, video filenames, monospace signal chains

frontend/src/App.css

@@ -1243,6 +1243,12 @@ body {
   text-decoration: underline;
 }
 
+.technique-header__stats {
+  font-size: 0.8125rem;
+  color: var(--color-text-secondary);
+  margin-top: 0.5rem;
+}
+
 /* ── Technique prose / sections ───────────────────────────────────────────── */
 
 .technique-summary {
@@ -1329,6 +1335,16 @@ body {
   font-variant-numeric: tabular-nums;
 }
 
+.technique-moment__source {
+  font-size: 0.75rem;
+  color: var(--color-text-muted);
+  font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
+  max-width: 20rem;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
 .technique-moment__summary {
   font-size: 0.8125rem;
   color: var(--color-text-secondary);
@@ -1361,11 +1377,25 @@ body {
   margin-bottom: 0.5rem;
 }
 
-.technique-chain__steps {
+.technique-chain__flow {
-  padding-left: 1.25rem;
+  font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
   font-size: 0.875rem;
-  line-height: 1.6;
+  line-height: 1.8;
   color: var(--color-text-primary);
+  background: var(--color-bg-transcript);
+  padding: 0.75rem 1rem;
+  border-radius: 0.375rem;
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+}
+
+.technique-chain__arrow {
+  color: var(--color-accent);
+}
+
+.technique-chain__step {
+  display: inline;
 }
 
 /* ── Plugins ──────────────────────────────────────────────────────────────── */

frontend/src/api/public-client.ts

@@ -34,6 +34,7 @@ export interface KeyMomentSummary {
   end_time: number;
   content_type: string;
   plugins: string[] | null;
+  video_filename: string;
 }
 
 export interface CreatorInfo {

frontend/src/pages/TechniquePage.tsx

@@ -138,6 +138,22 @@ export default function TechniquePage() {
             </span>
           )}
         </div>
+        {/* Meta stats line */}
+        <div className="technique-header__stats">
+          {(() => {
+            const sourceCount = new Set(
+              technique.key_moments
+                .map((km) => km.video_filename)
+                .filter(Boolean),
+            ).size;
+            const momentCount = technique.key_moments.length;
+            const updated = new Date(technique.updated_at).toLocaleDateString(
+              "en-US",
+              { year: "numeric", month: "short", day: "numeric" },
+            );
+            return `Compiled from ${sourceCount} source${sourceCount !== 1 ? "s" : ""} · ${momentCount} key moment${momentCount !== 1 ? "s" : ""} · Last updated ${updated}`;
+          })()}
+        </div>
       </header>
 
       {/* Summary */}
@@ -179,6 +195,11 @@ export default function TechniquePage() {
               <li key={km.id} className="technique-moment">
                 <div className="technique-moment__header">
                   <span className="technique-moment__title">{km.title}</span>
+                  {km.video_filename && (
+                    <span className="technique-moment__source">
+                      {km.video_filename}
+                    </span>
+                  )}
                   <span className="technique-moment__time">
                     {formatTime(km.start_time)} – {formatTime(km.end_time)}
                   </span>
@@ -211,11 +232,20 @@ export default function TechniquePage() {
                 <div key={i} className="technique-chain">
                   <h3>{chainName}</h3>
                   {steps.length > 0 && (
-                    <ol className="technique-chain__steps">
+                    <div className="technique-chain__flow">
                       {steps.map((step, j) => (
-                        <li key={j}>{String(step)}</li>
+                        <span key={j}>
+                          {j > 0 && (
+                            <span className="technique-chain__arrow">
+                              {" → "}
+                            </span>
+                          )}
+                          <span className="technique-chain__step">
+                            {String(step)}
+                          </span>
+                        </span>
                       ))}
-                    </ol>
+                    </div>
                   )}
                 </div>
               );