update some ui changes

src/app/manifest.ts

@@ -18,8 +18,8 @@ export default function manifest(): MetadataRoute.Manifest {
       'Footfall, campaign and LYT redemption analytics for Loyaly merchants.',
     start_url: '/dashboard',
     display: 'standalone',
-    background_color: '#000000',
+    background_color: '#F7F7F8',
-    theme_color: '#000000',
+    theme_color: '#F7F7F8',
     icons: [
       {src: '/icons/icon-192.png', sizes: '192x192', type: 'image/png', purpose: 'any'},
       {src: '/icons/icon-512.png', sizes: '512x512', type: 'image/png', purpose: 'any'},

src/features/commerce/hooks/useSales.ts

@@ -5,9 +5,26 @@ import {useResource} from '@/shared/hooks/useResource';
 import {useScope} from '@/shared/hooks/useScope';
 import type {Resource} from '@/shared/hooks/useResource';
 import type {Sale} from '@/features/commerce/types/sale';
+import {useWorkspace} from '@/shared/providers/WorkspaceProvider';
+import {useSampleFallback} from '@/shared/mocks/withSample';
+import {buildSampleSales} from '@/shared/mocks/sampleData';
+
+/** The workspace's real store ids a sample bill can belong to. */
+function useSampleSites(storeId: string): string[] {
+  const {stores} = useWorkspace();
+  return storeId === 'all' ? stores.filter((s) => s.id !== 'all').map((s) => s.id) : [storeId];
+}
 
 export function useSales(): Resource<Sale[]> {
-  return useResource(saleRepository.list(useScope()));
+  const scope = useScope();
+  const {storeId, range} = scope;
+  const sites = useSampleSites(storeId);
+  // SAMPLE while no sale is recorded for the scope — see useSampleFallback.
+  return useSampleFallback(
+    useResource(saleRepository.list(scope)),
+    (now) => buildSampleSales(range, storeId, sites, now),
+    [range, storeId, sites],
+  );
 }
 
 /**
@@ -18,7 +35,13 @@ export function useSales(): Resource<Sale[]> {
  */
 export function useTodaySales(enabled = true): Resource<Sale[]> {
   const {storeId} = useScope();
-  return useResource(
+  const sites = useSampleSites(storeId);
+  const real = useResource(
     enabled ? saleRepository.list({storeId, range: 'today'}) : null,
   );
+  return useSampleFallback(
+    real,
+    (now) => buildSampleSales('today', storeId, sites, now),
+    ['today', storeId, sites],
+  );
 }

src/features/dashboard/components/KpiRow.tsx

@@ -1,6 +1,8 @@
 'use client';
 
 import {Grid} from '@astryxdesign/core/Grid';
+import {VStack, HStack} from '@astryxdesign/core/Layout';
+import {SampleTag} from '@/shared/mocks/SampleTag';
 import {AsyncBoundary} from '@/shared/components/data/AsyncBoundary';
 import {MetricCard} from '@/shared/components/patterns/MetricCard';
 import {SkeletonMetricGrid} from '@/shared/components/patterns/LoadingState';
@@ -53,6 +55,12 @@ export function KpiRow({resource}: {resource: Resource<Kpi[]>}) {
       loading={<SkeletonMetricGrid columns={columns} />}
     >
       {(kpis) => (
+        <VStack gap={2}>
+          {resource.isSample ? (
+            <HStack hAlign="end">
+              <SampleTag show />
+            </HStack>
+          ) : null}
           <Grid columns={columns} gap={4}>
             {kpis.map((k) => (
               <MetricCard
@@ -68,6 +76,7 @@ export function KpiRow({resource}: {resource: Resource<Kpi[]>}) {
               />
             ))}
           </Grid>
+        </VStack>
       )}
     </AsyncBoundary>
   );

src/features/dashboard/hooks/useDashboard.ts

@@ -66,6 +66,7 @@ export function useDashboardKpis(
     // The server's clock, from whichever response landed — every relative time
     // on this page measures against it rather than the device.
     const meta = footfall.meta ?? conversion.meta;
+    const isSample = footfall.isSample || conversion.isSample;
 
     if (footfall.status === 'error' || conversion.status === 'error') {
       return {
@@ -97,6 +98,7 @@ export function useDashboardKpis(
       refetch,
       isRefreshing,
       meta,
+      isSample,
     } as Resource<Kpi[]>;
   }, [footfall, conversion]);
 }

src/features/dashboard/hooks/useReports.ts

@@ -9,6 +9,9 @@ import type {
   FootfallReport,
 } from '@/features/dashboard/types/reports';
 import type {VisitsPage} from '@/features/dashboard/types/visits';
+import {reportHasSignal} from '@/shared/hooks/resourceUtils';
+import {useSampleFallback} from '@/shared/mocks/withSample';
+import {buildSampleConversion, buildSampleFootfall} from '@/shared/mocks/sampleData';
 
 /**
  * One hook per resource, scoped by the workspace's {site, range}.
@@ -20,13 +23,29 @@ import type {VisitsPage} from '@/features/dashboard/types/visits';
 export function useFootfallReport(
   opts: {bucket?: string; compare?: boolean} = {},
 ): Resource<FootfallReport> {
-  return useResource(reportRepository.footfall(useScope(), opts));
+  const scope = useScope();
+  const {storeId, range} = scope;
+  // SAMPLE while the report has no visitors — see useSampleFallback.
+  return useSampleFallback(
+    useResource(reportRepository.footfall(scope, opts)),
+    (now) => buildSampleFootfall(range, storeId, now, opts.bucket),
+    [range, storeId, opts.bucket],
+    (d) => reportHasSignal(d, 'visitors'),
+  );
 }
 
 export function useConversionReport(
   opts: {bucket?: string; compare?: boolean} = {},
 ): Resource<ConversionReport> {
-  return useResource(reportRepository.conversion(useScope(), opts));
+  const scope = useScope();
+  const {storeId, range} = scope;
+  // SAMPLE while the report has no purchases — see useSampleFallback.
+  return useSampleFallback(
+    useResource(reportRepository.conversion(scope, opts)),
+    (now) => buildSampleConversion(range, storeId, now, opts.bucket),
+    [range, storeId, opts.bucket],
+    (d) => reportHasSignal(d, 'purchases') || reportHasSignal(d, 'revenue'),
+  );
 }
 
 export function useRecentVisits(limit = 6): Resource<VisitsPage> {

src/features/engagement/components/ActivitiesPanel.tsx

@@ -34,7 +34,9 @@ export function ActivitiesPanel() {
   const [recording, setRecording] = useState(false);
 
   const canRecord =
-    activities.status === 'success' && activities.data.some((a) => a.isActive);
+    activities.status === 'success' &&
+    !activities.isSample &&
+    activities.data.some((a) => a.isActive);
 
   const columns: TableColumn<ActivityRow>[] = [
     {

src/features/engagement/hooks/useEngagement.ts

@@ -9,18 +9,48 @@ import type {
   Campaign,
   Journey,
 } from '@/features/engagement/types/engagement';
+import {useSampleFallback} from '@/shared/mocks/withSample';
+import {
+  buildSampleActivityRows,
+  buildSampleCampaignRows,
+  buildSampleJourney,
+} from '@/shared/mocks/sampleData';
+
+// Each falls back to SAMPLE while the endpoint has nothing — see
+// useSampleFallback. The sample carries `attribution: 'estimated'`, so the
+// AttributionNote still shows.
 
 export function useActivities(): Resource<ActivityRow[]> {
-  return useResource(engagementRepository.activities(useScope()));
+  const scope = useScope();
+  const {storeId, range} = scope;
+  return useSampleFallback(
+    useResource(engagementRepository.activities(scope)),
+    (now) => buildSampleActivityRows(range, storeId, now),
+    [range, storeId],
+  );
 }
 
 export function useCampaigns(): Resource<Campaign[]> {
-  return useResource(engagementRepository.campaigns(useScope()));
+  const scope = useScope();
+  const {storeId, range} = scope;
+  return useSampleFallback(
+    useResource(engagementRepository.campaigns(scope)),
+    (now) => buildSampleCampaignRows(range, storeId, now),
+    [range, storeId],
+  );
 }
 
 /** Empty only when there are no stages at all; a stage of zero people is data. */
 export function useJourney(): Resource<Journey> {
-  return useResource(engagementRepository.journey(useScope()), {
+  const scope = useScope();
+  const {storeId, range} = scope;
+  return useSampleFallback(
+    useResource(engagementRepository.journey(scope), {
       isEmpty: (j) => j.stages.length === 0,
-  });
+    }),
+    (now) => buildSampleJourney(range, storeId, now),
+    [range, storeId],
+    // JourneyPanel treats a journey where nobody reached any stage as empty.
+    (j) => j.stages.some((s) => s.customers > 0),
+  );
 }

src/features/settings/components/PreferencesForm.tsx

@@ -92,8 +92,8 @@ export function PreferencesForm() {
             value={themeMode}
             onChange={(v) => setThemeMode(v as ThemeMode)}
             options={[
-              {label: 'Dark Mode (Monochrome Premium)', value: 'dark'},
               {label: 'Light Mode', value: 'light'},
+              {label: 'Dark Mode (Monochrome Premium)', value: 'dark'},
               {label: 'System OS Preference', value: 'system'},
             ]}
           />

src/shared/components/patterns/PanelCard.tsx

@@ -46,6 +46,7 @@ export function PanelCard<T>({
           subtitle={subtitle}
           actions={actions}
           level={headingLevel}
+          isSample={resource.isSample}
         />
         <AsyncBoundary resource={resource} loading={loading} empty={empty}>
           {children}

src/shared/components/patterns/SectionHeader.tsx

@@ -22,6 +22,7 @@ export function SectionHeader({
   subtitle,
   actions,
   level = 2,
+  isSample: isSampleData = false,
 }: {
   title: string;
   /**
@@ -33,9 +34,12 @@ export function SectionHeader({
   subtitle?: React.ReactNode;
   actions?: React.ReactNode;
   level?: 2 | 3 | 4 | 5;
+  /** The panel's resource is a sample standing in for an empty endpoint. */
+  isSample?: boolean;
 }) {
   // Inside a <SampleScope>, every panel says so — see shared/mocks.
-  const isSample = useInSampleScope();
+  const inScope = useInSampleScope();
+  const isSample = inScope || isSampleData;
   return (
     <HStack hAlign="between" vAlign="start" gap={3}>
       <VStack gap={0.5}>
@@ -52,7 +56,11 @@ export function SectionHeader({
         <HStack gap={1} vAlign="center">
           <SampleTag
             show={isSample}
-            description="The platform does not report this yet — showing an example"
+            description={
+              inScope
+                ? 'The platform does not report this yet — showing an example'
+                : 'No data for this period yet — showing an example'
+            }
           />
           {actions}
         </HStack>

src/shared/components/primitives/MetricDelta.tsx

@@ -1,16 +1,24 @@
 'use client';
 
+import {HStack} from '@astryxdesign/core/Layout';
 import {Icon} from '@astryxdesign/core/Icon';
+import {Text} from '@astryxdesign/core/Text';
 import {ICONS} from '@/shared/utils/icons';
 import {formatDelta} from '@/shared/utils/format';
 
 /**
- * Modern illuminated period-over-period change pill badge.
+ * Period-over-period change: an arrow and a signed percentage, in the
+ * semantic colour for whether the move is good.
+ *
+ * Inline, not a pill. The pill's padding and border pushed "+10.3%" past an
+ * 88px table column and it wrapped onto two lines; the colour and arrow carry
+ * the meaning on their own. `nowrap` keeps the figure on one line wherever
+ * it sits.
  */
 export function MetricDelta({
   value,
   isRiseGood = true,
-  size: _size = 'sm',
+  size = 'sm',
 }: {
   value: number;
   isRiseGood?: boolean;
@@ -18,30 +26,20 @@ export function MetricDelta({
 }) {
   const isFlat = Math.abs(value) < 0.05;
   const isGood = value > 0 === isRiseGood;
-
+  const tone = isFlat ? 'text-secondary' : isGood ? 'text-success' : 'text-error';
-  if (isFlat) {
-    return (
-      <span className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-[11px] font-medium bg-zinc-500/10 dark:bg-zinc-400/10 text-zinc-600 dark:text-zinc-400 border border-zinc-500/15">
-        <span className="w-1 h-1 rounded-full bg-zinc-400" />
-        <span>0.0%</span>
-      </span>
-    );
-  }
-
-  const badgeClass = isGood
-    ? 'bg-emerald-500/10 text-emerald-600 dark:text-emerald-400 border-emerald-500/20'
-    : 'bg-rose-500/10 text-rose-600 dark:text-rose-400 border-rose-500/20';
 
   return (
-    <span
+    <HStack gap={0.5} vAlign="center" className={`inline-flex ${tone}`}>
-      className={`inline-flex items-center gap-1 px-2.5 py-0.5 rounded-full text-[11px] font-semibold tracking-tight border transition-all ${badgeClass}`}
+      {isFlat ? null : (
-    >
         <Icon
           icon={value > 0 ? ICONS.up : ICONS.down}
           size="xsm"
           color={isGood ? 'success' : 'error'}
         />
-      <span>{formatDelta(value)}</span>
+      )}
-    </span>
+      <Text size={size} weight="semibold" color="inherit" textWrap="nowrap" hasTabularNumbers>
+        {isFlat ? '0.0%' : formatDelta(value)}
+      </Text>
+    </HStack>
   );
 }

src/shared/hooks/resourceUtils.ts

@@ -39,6 +39,7 @@ export function joinResources<A, B>(
     },
     isRefreshing: a.isRefreshing || b.isRefreshing,
     meta: a.meta ?? b.meta,
+    isSample: a.isSample || b.isSample,
   };
   if (a.status === 'error') return {...common, status: 'error', data: undefined, error: a.error};
   if (b.status === 'error') return {...common, status: 'error', data: undefined, error: b.error};

src/shared/hooks/useResource.ts

@@ -35,6 +35,12 @@ export type Resource<T> = AsyncState<T> & {
    * wrong countdown to any user whose device clock is off.
    */
   meta?: ApiMeta;
+  /**
+   * TEMPORARY — set by useSampleFallback() when the real endpoint had nothing
+   * and an example is on screen instead. PanelCard shows the "Sample data"
+   * token from it. Goes with shared/mocks.
+   */
+  isSample?: boolean;
 };
 
 /** What the fetch resolved to, tagged with the request it belongs to. */

src/shared/mocks/sampleData.ts

@@ -57,6 +57,17 @@ import type {LoginAuditItem} from '@/features/settings/components/SecurityManage
 import type {
   RangeKey,
 } from '@/shared/types/api';
+import type {
+  ConversionReport,
+  FootfallReport,
+  ReportBucket,
+} from '@/features/dashboard/types/reports';
+import type {Sale} from '@/features/commerce/types/sale';
+import type {
+  ActivityRow,
+  Campaign,
+  Journey,
+} from '@/features/engagement/types/engagement';
 
 // ===========================================================================
 // Seeded randomness
@@ -1635,3 +1646,217 @@ export const SAMPLE_AI_EXPORT_ROWS = [
 
 /** The assistant landing's store-pulse strip — no live telemetry feed yet. */
 export const SAMPLE_AI_PULSE = {footfallDeltaPct: 18.4, syncPct: 99.8};
+
+// ===========================================================================
+// Fallbacks for REAL endpoints that came back empty
+//
+// Read through useSampleFallback() (withSample.ts): the real response always
+// wins when it carries anything, and the panel wears the "Sample data" token
+// whenever one of these is on screen. Shapes match the BFF payloads exactly,
+// so the panels render them with no special case.
+// ===========================================================================
+
+/** Daily buckets from the shared timeseries, so every sample chart agrees. */
+function sampleDayBuckets(range: RangeKey, storeId: string, endMs: number): ReportBucket[] {
+  return buildTimeseries(range, storeId, endMs).map((p, i) => {
+    const rng = createRng('report-bucket', storeId, range, p.t, i);
+    const newVisitors = Math.round(p.visitors * rng.float(0.28, 0.42));
+    return {
+      label: p.t,
+      visitors: p.visitors,
+      newVisitors,
+      returningVisitors: p.visitors - newVisitors,
+      purchases: p.purchases,
+      revenue: p.revenue,
+      conversion: p.conversion,
+    };
+  });
+}
+
+/** Days rolled into weeks, labelled by each week's first day. */
+function rollWeeks(days: ReportBucket[]): ReportBucket[] {
+  const weeks: ReportBucket[] = [];
+  days.forEach((d, i) => {
+    if (i % 7 === 0) weeks.push({...d});
+    else {
+      const w = weeks[weeks.length - 1];
+      w.visitors += d.visitors;
+      w.newVisitors += d.newVisitors;
+      w.returningVisitors += d.returningVisitors;
+      w.purchases += d.purchases;
+      w.revenue += d.revenue;
+    }
+  });
+  return weeks.map((w) => ({
+    ...w,
+    conversion: w.visitors ? Number(((w.purchases / w.visitors) * 100).toFixed(1)) : 0,
+  }));
+}
+
+function sampleBuckets(range: RangeKey, storeId: string, endMs: number, bucket?: string) {
+  const days = sampleDayBuckets(range, storeId, endMs);
+  return bucket === 'week' ? rollWeeks(days) : days;
+}
+
+const previousEnd = (range: RangeKey, endMs: number) => endMs - RANGE_DAYS[range] * 86400000;
+
+export function buildSampleFootfall(
+  range: RangeKey,
+  storeId: string,
+  endMs: number,
+  bucket?: string,
+): FootfallReport {
+  const buckets = sampleBuckets(range, storeId, endMs, bucket);
+  const visits = buckets.reduce((a, b) => a + b.visitors, 0);
+  const newVisitors = buckets.reduce((a, b) => a + b.newVisitors, 0);
+  // Unique people, not bucket-visitors: regulars come more than once a window.
+  const total = Math.round(visits * 0.72);
+  const previousVisits = totalVisitors(range, storeId, previousEnd(range, endMs));
+  return {
+    total,
+    newVisitors: Math.min(newVisitors, total),
+    returningVisitors: Math.max(0, total - newVisitors),
+    visits,
+    buckets,
+    timezone: 'Asia/Kolkata',
+    previousTotal: Math.round(previousVisits * 0.72),
+  };
+}
+
+export function buildSampleConversion(
+  range: RangeKey,
+  storeId: string,
+  endMs: number,
+  bucket?: string,
+): ConversionReport {
+  const buckets = sampleBuckets(range, storeId, endMs, bucket);
+  const purchases = buckets.reduce((a, b) => a + b.purchases, 0);
+  const revenue = buckets.reduce((a, b) => a + b.revenue, 0);
+  const visitors = buckets.reduce((a, b) => a + b.visitors, 0);
+  const prev = buildTimeseries(range, storeId, previousEnd(range, endMs));
+  return {
+    purchases,
+    revenue,
+    conversionPct: visitors ? Number(((purchases / (visitors * 0.72)) * 100).toFixed(1)) : null,
+    basketSize: purchases ? Math.round(revenue / purchases) : null,
+    buckets,
+    timezone: 'Asia/Kolkata',
+    previousPurchases: prev.reduce((a, p) => a + p.purchases, 0),
+    previousRevenue: prev.reduce((a, p) => a + p.revenue, 0),
+  };
+}
+
+const SAMPLE_CUSTOMERS = ['Priya S.', 'Arjun M.', 'Kavya R.', 'Rahul N.', 'Sneha P.', 'Vikram T.', 'Ananya K.', 'Rohan D.'];
+const SAMPLE_CASHIERS = ['Meena', 'Karthik', 'Divya', 'Suresh'];
+/** Keeps a 90-day all-stores list from building tens of thousands of rows. */
+const MAX_SAMPLE_SALES = 1500;
+const IST_OFFSET_MS = 5.5 * 3600000;
+
+/**
+ * Bills for the sale list. `siteIds` are the workspace's REAL store ids, so
+ * Top performing outlets names the merchant's own shops.
+ */
+export function buildSampleSales(
+  range: RangeKey,
+  storeId: string,
+  siteIds: string[],
+  endMs: number,
+): Sale[] {
+  const days = RANGE_DAYS[range];
+  const sites = siteIds.length ? siteIds : [storeId];
+  const perDayCap = Math.max(4, Math.floor(MAX_SAMPLE_SALES / days));
+  const sales: Sale[] = [];
+
+  buildTimeseries(range, storeId, endMs).forEach((p, dayIdx) => {
+    const rng = createRng('sale', storeId, range, p.t);
+    const count = Math.min(perDayCap, Math.max(3, Math.round(p.purchases / 6)));
+    const dayStart = Date.parse(`${p.t}T00:00:00Z`) - IST_OFFSET_MS;
+    for (let i = 0; i < count; i++) {
+      // Shop hours 10:00–21:00 IST, with an evening lean.
+      const hour = Math.min(21, Math.floor(10 + 11 * Math.sqrt(rng.next())));
+      const at = dayStart + hour * 3600000 + rng.int(0, 59) * 60000;
+      const purchasedLines = rng.int(1, 4);
+      const enquiryLines = rng.next() < 0.3 ? rng.int(1, 2) : 0;
+      const totalPaise = purchasedLines * rng.int(249, 1299) * 100;
+      const known = rng.next() < 0.6;
+      sales.push({
+        id: `sample-${p.t}-${i}`,
+        invoiceNo: `INV-${p.t.replaceAll('-', '').slice(2)}-${String(dayIdx * 100 + i).padStart(4, '0')}`,
+        siteId: sites[rng.int(0, sites.length - 1)],
+        customerRef: known ? `cust-${rng.int(100, 999)}` : null,
+        customerLabel: known ? rng.pick(SAMPLE_CUSTOMERS) : null,
+        staffName: rng.pick(SAMPLE_CASHIERS),
+        totalPaise,
+        currency: 'INR',
+        status: rng.next() < 0.02 ? 'void' : 'completed',
+        at: new Date(at).toISOString(),
+        purchasedLines,
+        enquiryLines,
+        lines: [],
+      });
+    }
+  });
+
+  return sales.sort((a, b) => b.at.localeCompare(a.at));
+}
+
+/** The engagement catalogue, from the same activity metrics the intelligence panels use. */
+export function buildSampleActivityRows(
+  range: RangeKey,
+  storeId: string,
+  endMs: number,
+): ActivityRow[] {
+  return buildActivityMetrics(range, storeId, endMs)
+    .filter((m) => m.status !== 'draft')
+    .map((m) => ({
+      id: m.id,
+      kind: m.id,
+      name: m.label,
+      isActive: m.status === 'live',
+      events: m.count,
+      participants: m.impact.customers,
+      anonymous: Math.round(m.impact.customers * 0.12),
+      repeatVisitors: m.impact.repeatVisits,
+      purchases: m.impact.purchases,
+      attributedRevenue: m.impact.attributedRevenueInr,
+      currency: 'INR',
+      attribution: 'estimated' as const,
+    }));
+}
+
+export function buildSampleCampaignRows(
+  range: RangeKey,
+  storeId: string,
+  endMs: number,
+): Campaign[] {
+  const metrics = buildActivityMetrics(range, storeId, endMs);
+  return buildCampaigns(range, storeId, endMs).map((c, i) => {
+    const m = metrics.find((x) => x.id === c.activityId);
+    const startDaysAgo = [24, 40, 18, 60][i % 4];
+    const isActive = c.status === 'live';
+    return {
+      id: c.id,
+      name: c.name,
+      startsAt: new Date(endMs - startDaysAgo * 86400000).toISOString(),
+      endsAt: isActive ? null : new Date(endMs - 6 * 86400000).toISOString(),
+      isActive,
+      activities: [c.activityId],
+      events: c.steps[0].value,
+      participants: m?.impact.customers ?? c.steps[0].value,
+      purchasers: c.steps[2].value,
+      attributedRevenue: c.attributedRevenueInr,
+      attribution: c.attribution,
+    };
+  });
+}
+
+export function buildSampleJourney(range: RangeKey, storeId: string, endMs: number): Journey {
+  return {
+    stages: buildJourney(range, storeId, endMs).map((s) => ({
+      id: s.id,
+      label: s.label,
+      customers: s.value,
+    })),
+    attribution: 'estimated',
+  };
+}

src/shared/mocks/withSample.ts

@@ -6,8 +6,11 @@
  *   useSampleResource() no endpoint exists at all; the sample IS the data, and
  *                       the panel sits inside a <SampleScope>.
  *
- * A section that HAS a real endpoint never falls back to sample data: an
+ *   useSampleFallback() a real endpoint exists but returned nothing (or
- * empty response renders the panel's empty state.
+ *                       failed); an example stands in and the panel wears
+ *                       the "Sample data" token via `resource.isSample`.
+ *                       Off with NEXT_PUBLIC_SAMPLE_FALLBACK=off, which
+ *                       restores the plain empty states.
  *
  * Every sample value comes from shared/mocks/sampleData.ts — the single file
  * to edit, and eventually delete.
@@ -65,3 +68,46 @@ export function useSampleResource<T>(
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [key]);
 }
+
+/** Set NEXT_PUBLIC_SAMPLE_FALLBACK=off to show real empty states instead. */
+export const SAMPLE_FALLBACK = process.env.NEXT_PUBLIC_SAMPLE_FALLBACK !== 'off';
+
+const hasRows = (d: unknown) => !Array.isArray(d) || d.length > 0;
+
+/**
+ * The real resource while it carries anything; otherwise a sample of the
+ * same shape, marked `isSample`. Loading stays loading — a sample never
+ * flashes in ahead of a real response.
+ *
+ * `hasData` decides what "carries anything" means: a report whose buckets
+ * are all zero arrives as success but is still nothing to draw.
+ */
+export function useSampleFallback<T>(
+  real: Resource<T>,
+  build: (nowMs: number) => T,
+  deps: readonly unknown[],
+  hasData: (data: T) => boolean = hasRows,
+): Resource<T> {
+  const needed =
+    SAMPLE_FALLBACK &&
+    (real.status === 'empty' ||
+      real.status === 'error' ||
+      (real.status === 'success' && !hasData(real.data)));
+  const key = JSON.stringify(deps);
+  const {refetch} = real;
+  const sample = useMemo<Resource<T> | null>(() => {
+    if (!needed) return null;
+    const nowMs = sampleNowMs();
+    return {
+      status: 'success',
+      data: build(nowMs),
+      error: undefined,
+      refetch,
+      isRefreshing: false,
+      meta: {generatedAt: new Date(nowMs).toISOString()},
+      isSample: true,
+    } as Resource<T>;
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [needed, key, refetch]);
+  return sample ?? real;
+}

src/shared/theme/themeMode.ts

@@ -20,10 +20,10 @@ export const THEME_MODE_COOKIE = 'loyaly.theme-mode';
 export const THEME_MODE_MAX_AGE = 60 * 60 * 24 * 365;
 
 /**
- * Dark is the product's identity, so it is what an unknown visitor gets —
+ * Light is what an unknown visitor gets — not 'system', so the console looks
- * not 'system'. Only an explicit choice moves off it.
+ * the same on every machine until somebody picks otherwise in Preferences.
  */
-export const DEFAULT_THEME_MODE: ThemeMode = 'dark';
+export const DEFAULT_THEME_MODE: ThemeMode = 'light';
 
 export function parseThemeMode(value: string | undefined | null): ThemeMode {
   return value === 'light' || value === 'dark' || value === 'system'