chore(ttsreader): bump fc-ttsreader-web to v20260612-ui-conformance (FC UI conformance D5)

Gold PWA primary CTA (mobile-button--primary blue->gold cascade fix) + About
operator jump-links / honest update-status / license (FcAboutPanel contract).
Image built + imported to rke2-server + rke2-agent1; pin so ArgoCD adopts the
new tag instead of reverting the kubectl set image.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/fc-ttsreader/fc-ttsreader.yaml

@@ -535,7 +535,7 @@ spec:
         fsGroupChangePolicy: OnRootMismatch
       containers:
         - name: web
-          image: localhost/fc-ttsreader-web:v20260612-readalong-corrections
+          image: localhost/fc-ttsreader-web:v20260612-ui-conformance
           imagePullPolicy: Never
           ports:
             - containerPort: 5217