fix: render completed growth reports reliably

src/lib/components/GrowthInsights.svelte

@@ -25,14 +25,19 @@
     peer,
     terminalScoped = false,
   }: {
-    wins?: Win[];
+    wins?: Win[] | null;
-    opportunities?: Opportunity[];
+    opportunities?: Opportunity[] | null;
-    risks?: Risk[];
+    risks?: Risk[] | null;
-    briefs?: Brief[];
+    briefs?: Brief[] | null;
     peer?: Peer | null;
     terminalScoped?: boolean;
   } = $props();
 
+  const safeWins = $derived(wins ?? []);
+  const safeOpportunities = $derived(opportunities ?? []);
+  const safeRisks = $derived(risks ?? []);
+  const safeBriefs = $derived(briefs ?? []);
+
   function dateLabel(value: string) {
     return new Intl.DateTimeFormat('fa-IR-u-ca-persian', {
       dateStyle: 'medium',
@@ -54,7 +59,7 @@
         ></CardHeader
       >
       <CardContent class="grid gap-3 md:grid-cols-2">
-        {#each opportunities.slice(0, 5) as opportunity, index}
+        {#each safeOpportunities.slice(0, 5) as opportunity, index}
           <article id={`evidence-${opportunity.evidenceId}`} class="bg-muted/55 rounded-md border p-4">
             <div class="flex items-start justify-between gap-3">
               <div>
@@ -79,13 +84,13 @@
       </CardContent>
     </Card>
 
-    {#if briefs.length}
+    {#if safeBriefs.length}
       <section aria-labelledby="campaign-briefs-heading">
         <h2 id="campaign-briefs-heading" class="mb-3 flex items-center gap-2 text-lg font-bold">
           <SparklesIcon class="text-primary size-5" /> پیشنهادهای آماده‌سازی
         </h2>
         <div class="grid gap-3 md:grid-cols-2">
-          {#each briefs as brief}
+          {#each safeBriefs as brief}
             <Card class="rounded-lg shadow-xs">
               <CardContent class="p-5">
                 <h3 class="font-bold">{brief.headline}</h3>
@@ -130,7 +135,7 @@
         ></CardHeader
       >
       <CardContent class="space-y-3">
-        {#each wins as win}
+        {#each safeWins as win}
           <article id={`evidence-${win.evidenceId}`} class="border-b pb-3 last:border-0 last:pb-0">
             <h3 class="font-semibold">{win.eventTitleFa}</h3>
             <p class="text-muted-foreground mt-1 text-xs">{dateLabel(win.startDate)}</p>
@@ -155,7 +160,7 @@
         ></CardHeader
       >
       <CardContent class="space-y-3">
-        {#each risks.slice(0, 3) as risk}
+        {#each safeRisks.slice(0, 3) as risk}
           <article
             id={`evidence-${risk.evidenceId}`}
             class="rounded-md border bg-amber-50/50 p-4 dark:bg-amber-950/15"

src/lib/components/GrowthInsights.test.ts

@@ -0,0 +1,20 @@
+import { render, screen } from '@testing-library/svelte';
+import { describe, expect, it } from 'vitest';
+
+import GrowthInsights from './GrowthInsights.svelte';
+
+describe('GrowthInsights', () => {
+  it('renders empty insight states when persisted API arrays are null', () => {
+    render(GrowthInsights, {
+      wins: null,
+      opportunities: null,
+      risks: null,
+      briefs: null,
+      peer: null,
+    });
+
+    expect(screen.getByText('در افق فعلی، فرصت رویدادی معناداری پیدا نشد.')).not.toBeNull();
+    expect(screen.getByText('هنوز رویداد موفقی با شواهد کافی ثبت نشده است.')).not.toBeNull();
+    expect(screen.getByText('افت معناداری برای هشدار پیدا نشد.')).not.toBeNull();
+  });
+});

src/lib/components/GrowthPage.svelte

@@ -147,6 +147,7 @@
       source.close();
       schedulePoll();
     };
+    schedulePoll();
   }
 
   function isGrowthReport(value: unknown): value is GrowthReport {
@@ -165,9 +166,13 @@
     if (polling) clearTimeout(polling);
     polling = setTimeout(async () => {
       if (!report) return;
+      const reportId = report.reportId;
       try {
-        report = await api.growthReport(report.reportId);
+        const next = await api.growthReport(reportId);
-        if (['QUEUED', 'ANALYZING', 'GENERATING'].includes(report.status)) schedulePoll();
+        if (report?.reportId !== reportId) return;
+        report = next;
+        if (['QUEUED', 'ANALYZING', 'GENERATING'].includes(next.status)) schedulePoll();
+        else closeRealtime();
       } catch {
         schedulePoll();
       }