feat(glucose): cross-link the clinical panel to Labs

Glucose has three front doors — measurements/CGM as readings over time,
the clinical panel as derived TIR/GMI/estimated-A1c, and Labs as dated
panel results — with no signpost between them. The clinical panel now
carries a one-line cross-link clarifying that a blood-draw HbA1c or
fasting glucose belongs in Labs, so the spot-estimate view and the
lab-result view reference each other instead of competing. Adds
insights.bloodGlucose.clinical.labsLink across all six locales.

messages/de.json

@@ -2713,6 +2713,7 @@
         "title": "Glukose-Überblick",
         "subtitle": "Ein Blick auf deine letzten {days} Tage, aus {count} Messungen.",
         "spotCaveat": "Das sind Schätzungen aus einzelnen Stichproben-Messungen, kein Profil eines kontinuierlichen Sensors – lies sie als Richtung, nicht als klinisches Urteil.",
+        "labsLink": "Laborergebnisse? HbA1c und Nüchternglukose aus einer Blutabnahme trägst du unter Labor ein.",
         "learningTitle": "Lerne deine Glukose noch kennen",
         "learningBody": "Bisher sind das {count} über {days}. Mit etwas mehr Verlauf wird das Bild klarer – mess weiter oder lass es ein verbundenes Gerät ergänzen.",
         "learningBodyEmpty": "Sobald ein paar Messungen vorliegen – von dir erfasst oder von einem Gerät synchronisiert – nehmen Zeit-im-Zielbereich, Durchschnitt und Schwankung hier Gestalt an.",

messages/en.json

@@ -2713,6 +2713,7 @@
         "title": "Glucose overview",
         "subtitle": "A read on your last {days} days, from {count} readings.",
         "spotCaveat": "These are spot-reading estimates from individual measurements, not a continuous-monitor profile — read them as a direction of travel rather than a clinical verdict.",
+        "labsLink": "Lab results? Log a blood-draw HbA1c or fasting glucose under Labs.",
         "learningTitle": "Still learning your glucose",
         "learningBody": "So far that's {count} over {days}. A little more history and a fuller picture comes into focus — keep logging, or let a connected device fill it in.",
         "learningBodyEmpty": "Once a handful of readings come in — logged by you or synced from a device — your time-in-range, average, and variability take shape here.",

messages/es.json

@@ -2713,6 +2713,7 @@
         "title": "Resumen de glucosa",
         "subtitle": "Una lectura de tus últimos {days} días, a partir de {count} mediciones.",
         "spotCaveat": "Son estimaciones a partir de mediciones puntuales, no un perfil de un sensor continuo: léelas como una tendencia, no como un veredicto clínico.",
+        "labsLink": "¿Resultados de laboratorio? Registra una HbA1c o glucosa en ayunas de una analítica en Laboratorio.",
         "learningTitle": "Aún conociendo tu glucosa",
         "learningBody": "De momento son {count} en {days}. Con algo más de historial el panorama se aclara: sigue registrando o deja que lo complete un dispositivo conectado.",
         "learningBodyEmpty": "En cuanto lleguen unas cuantas mediciones —registradas por ti o sincronizadas desde un dispositivo— tu tiempo en rango, promedio y variabilidad tomarán forma aquí.",

messages/fr.json

@@ -2713,6 +2713,7 @@
         "title": "Aperçu du glucose",
         "subtitle": "Un point sur vos {days} derniers jours, à partir de {count} mesures.",
         "spotCaveat": "Ce sont des estimations issues de mesures ponctuelles, pas le profil d’un capteur continu : lisez-les comme une tendance, non comme un verdict clinique.",
+        "labsLink": "Résultats de laboratoire ? Saisis une HbA1c ou une glycémie à jeun issue d'une prise de sang dans Laboratoire.",
         "learningTitle": "Votre glucose se découvre encore",
         "learningBody": "Pour l’instant, cela fait {count} sur {days}. Avec un peu plus d’historique, le tableau se précise : continuez à enregistrer ou laissez un appareil connecté compléter.",
         "learningBodyEmpty": "Dès que quelques mesures arrivent — saisies par vous ou synchronisées depuis un appareil — votre temps dans la cible, votre moyenne et votre variabilité prennent forme ici.",

messages/it.json

@@ -2713,6 +2713,7 @@
         "title": "Panoramica della glicemia",
         "subtitle": "Una lettura dei tuoi ultimi {days} giorni, da {count} misurazioni.",
         "spotCaveat": "Sono stime da singole misurazioni puntuali, non il profilo di un sensore continuo: leggile come una tendenza, non come un verdetto clinico.",
+        "labsLink": "Risultati di laboratorio? Registra una HbA1c o la glicemia a digiuno da un prelievo in Laboratorio.",
         "learningTitle": "Stiamo ancora imparando la tua glicemia",
         "learningBody": "Per ora sono {count} su {days}. Con un po’ più di storico il quadro si chiarisce: continua a registrare o lascia che lo completi un dispositivo connesso.",
         "learningBodyEmpty": "Appena arrivano alcune misurazioni — registrate da te o sincronizzate da un dispositivo — il tempo nel range, la media e la variabilità prendono forma qui.",

messages/pl.json

@@ -2713,6 +2713,7 @@
         "title": "Przegląd glukozy",
         "subtitle": "Spojrzenie na ostatnie {days} dni, na podstawie {count} pomiarów.",
         "spotCaveat": "To szacunki z pojedynczych pomiarów punktowych, a nie profil z czujnika ciągłego — traktuj je jako kierunek, nie jako diagnozę.",
+        "labsLink": "Wyniki laboratoryjne? HbA1c lub glukozę na czczo z pobrania krwi zapisz w sekcji Laboratorium.",
         "learningTitle": "Wciąż poznajemy Twoją glukozę",
         "learningBody": "Na razie to {count} w ciągu {days}. Przy nieco dłuższej historii obraz się wyostrza — rejestruj dalej lub pozwól uzupełnić to podłączonemu urządzeniu.",
         "learningBodyEmpty": "Gdy pojawi się kilka pomiarów — wpisanych przez Ciebie lub zsynchronizowanych z urządzenia — czas w zakresie, średnia i zmienność nabiorą tu kształtu.",

src/components/insights/glucose/glucose-clinical-panel.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { Activity, Droplet, TrendingUp } from "lucide-react";
+import Link from "next/link";
+import { Activity, Droplet, FlaskConical, TrendingUp } from "lucide-react";
 
 import { Badge } from "@/components/ui/badge";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
@@ -113,6 +114,9 @@ export function GlucoseClinicalPanel() {
             }
             caveat={t("insights.bloodGlucose.clinical.spotCaveat")}
           />
+          <div className="mt-4">
+            <LabsCrossLink />
+          </div>
         </CardContent>
       </Card>
     );
@@ -225,11 +229,34 @@ export function GlucoseClinicalPanel() {
             byContext={byContext}
           />
         ) : null}
+
+        <LabsCrossLink />
       </CardContent>
     </Card>
   );
 }
 
+/**
+ * v1.18.6 — signpost the measurement-vs-lab mental model. This panel
+ * estimates A1c / GMI from spot or CGM readings over time; a lab-ordered
+ * HbA1c or fasting-glucose result is a dated panel value that lives under
+ * Labs. The cross-link keeps the two surfaces referencing each other so a
+ * user knows which door to use rather than treating them as rivals.
+ */
+function LabsCrossLink() {
+  const { t } = useTranslations();
+  return (
+    <Link
+      href="/labs"
+      data-slot="glucose-labs-link"
+      className="text-muted-foreground hover:text-foreground border-border/60 flex items-start gap-1.5 border-t pt-3 text-xs leading-relaxed underline-offset-4 hover:underline"
+    >
+      <FlaskConical className="mt-0.5 size-3 shrink-0" aria-hidden="true" />
+      <span>{t("insights.bloodGlucose.clinical.labsLink")}</span>
+    </Link>
+  );
+}
+
 function Metric({
   icon,
   label,