fix(clinician): write the shared view's numbers in the owner's locale

The clinician view rounded numbers and printed them bare, so a German
record showed 24.5 where every other surface shows 24,5. Its number
formatter now goes through the locale formatter it already builds,
at most two decimals.

src/components/clinician/__tests__/clinician-view-locales.test.tsx

@@ -253,3 +253,31 @@ describe("<ClinicianView> resolves every label in every locale", () => {
     });
   }
 });
+
+describe("<ClinicianView> numbers follow the owner's locale", () => {
+  function text(locale: "de" | "en") {
+    const { t } = getServerTranslator(locale);
+    return renderToStaticMarkup(
+      ClinicianView({
+        t: (key, vars) => t(key, vars),
+        label: "Clinic",
+        expiresAt: "2026-03-01T00:00:00.000Z",
+        report: FULL_RECORD,
+        selection: selectionFromLeaves(ALL_LEAF_IDS),
+        locale,
+        timeFormat: "AUTO",
+        dateFormat: "AUTO",
+      }),
+    ).replace(/<[^>]*>/g, " ");
+  }
+
+  it("writes a German decimal with a comma", () => {
+    // BMI 24.5 in the fixture.
+    expect(text("de")).toContain("24,5");
+    expect(text("de")).not.toContain("24.5");
+  });
+
+  it("keeps the point for an English reader", () => {
+    expect(text("en")).toContain("24.5");
+  });
+});

src/components/clinician/clinician-view.tsx

@@ -149,7 +149,9 @@ export function ClinicianView({
   const fmt = makeFormatters(locale, timezone, timeFormat, dateFormat);
   const fmtDate = (iso: string) => fmt.date(new Date(iso));
   const fmtDateTime = (iso: string) => fmt.dateTime(new Date(iso));
-  const fmtNum = (n: number) => Math.round(n * 100) / 100;
+  // Two decimals at most, in the owner's locale: a German reader gets
+  // "80,5", not the "80.5" a bare number prints.
+  const fmtNum = (n: number) => fmt.number(Math.round(n * 100) / 100);
   const scope = makeLeafScope(selection, unavailableLeaves);
 
   return (
@@ -207,7 +209,7 @@ export function ClinicianView({
               >
                 <StatRow
                   label={t("clinicianView.bmi")}
-                  value={String(fmtNum(report.bmi))}
+                  value={fmtNum(report.bmi)}
                 />
               </Section>
             ) : null}

src/components/clinician/history-sections.tsx

@@ -53,7 +53,7 @@ export function LabResultsSection({
   report: DoctorReportData;
   scope: LeafScope;
   fmtDate: (iso: string) => string;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const results = report.labResults ?? [];
 
@@ -73,7 +73,7 @@ export function LabResultsSection({
           ? lab.valueText
           : `${fmtNum(lab.value as number)} ${lab.unit}`.trim();
         const range = (low: number | null, high: number | null) =>
-          formatReferenceRange(low, high, (value) => String(fmtNum(value)), {
+          formatReferenceRange(low, high, fmtNum, {
             emptyText: "",
           });
         // The window the reading was judged against, printed as the source

src/components/clinician/report-sections.tsx

@@ -204,7 +204,7 @@ export function MeasurementGroups({
   t: Translate;
   report: DoctorReportData;
   scope: LeafScope;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const groups = REPORT_GROUPS.map((group) => ({
     labelKey: group.labelKey,
@@ -257,7 +257,7 @@ export function MeasurementGroups({
 function statSummary(
   t: Translate,
   unit: string,
-  values: { latest: number; avg: number; min: number; max: number },
+  values: { latest: string; avg: string; min: string; max: string },
 ): string {
   return unit
     ? t("clinicianView.statSummaryWithUnit", { ...values, unit })
@@ -279,7 +279,7 @@ export function GlucoseSection({
   t: Translate;
   report: DoctorReportData;
   scope: LeafScope;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const entries = Object.entries(report.glucoseStats).filter(
     ([, s]) => s.count > 0,
@@ -506,7 +506,7 @@ export function WellnessSection({
   t: Translate;
   report: DoctorReportData;
   scope: LeafScope;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const wellness =
     report.wellnessScores?.filter(

src/components/clinician/sensitive-sections.tsx

@@ -89,7 +89,7 @@ export function MoodSection({
   t: Translate;
   report: DoctorReportData;
   scope: LeafScope;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const mood = report.mood ?? null;
   const buckets = mood ? Object.entries(mood.distribution) : [];
@@ -145,7 +145,7 @@ export function CycleSection({
   report: DoctorReportData;
   scope: LeafScope;
   fmtDate: (iso: string) => string;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const cycle = report.cycle ?? null;
   // The summary carries plain dates (YYYY-MM-DD); midday keeps the rendered

src/components/clinician/therapy-sections.tsx

@@ -47,7 +47,7 @@ export function Glp1Section({
   report: DoctorReportData;
   scope: LeafScope;
   fmtDate: (iso: string) => string;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const glp1 = report.glp1 ?? null;
   const medications = glp1?.medications ?? [];
@@ -173,7 +173,7 @@ export function DoseLogSection({
   report: DoctorReportData;
   scope: LeafScope;
   fmtDateTime: (iso: string) => string;
-  fmtNum: (n: number) => number;
+  fmtNum: (n: number) => string;
 }) {
   const administrations = report.medicationAdministrations ?? [];
   // Newest first: a clinician reads "when did they last take it", not "when