Add Storybook stories for ClearLocalData, SectionErrorBoundary, Analy…

components/analytics/charts.stories.tsx

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+import type { Meta, StoryObj } from '@storybook/react'
+import { AnalyticsCharts, ChartSkeleton } from './charts'
+
+type AnalyticsChartsProps = React.ComponentProps<typeof AnalyticsCharts>
+
+const mockSeriesData: AnalyticsChartsProps['series'] = [
+  { label: 'Jan 1', count: 5, volume: 1500 },
+  { label: 'Jan 8', count: 8, volume: 2400 },
+  { label: 'Jan 15', count: 12, volume: 3200 },
+  { label: 'Jan 22', count: 10, volume: 2800 },
+  { label: 'Jan 29', count: 15, volume: 3800 },
+]
+
+const mockTokenShares: AnalyticsChartsProps['tokenShares'] = [
+  { symbol: 'USDC', amount: 50000000000n, count: 12, decimals: 6 },
+  { symbol: 'USDT', amount: 30000000000n, count: 8, decimals: 6 },
+  { symbol: 'EUR', amount: 20000000000n, count: 5, decimals: 6 },
+]
+
+const mockTopTokens: AnalyticsChartsProps['topTokens'] = [
+  { symbol: 'USDC', amount: 50000000000n, count: 12, decimals: 6 },
+  { symbol: 'USDT', amount: 30000000000n, count: 8, decimals: 6 },
+  { symbol: 'EUR', amount: 20000000000n, count: 5, decimals: 6 },
+]
+
+const mockStatusBreakdown: AnalyticsChartsProps['statusBreakdown'] = [
+  { status: 'streaming', count: 15 },
+  { status: 'completed', count: 8 },
+  { status: 'scheduled', count: 3 },
+  { status: 'cancelled', count: 2 },
+]
+
+const mockTopRecipients: AnalyticsChartsProps['topRecipients'] = [
+  {
+    address: 'GCZJVEY2HJVCWZQW2IGUBNVQ4FXQMYB7VVKQEMKJ3BMPZX5ZMMK5GO7C',
+    federationName: 'alice.stellar.org',
+    count: 5,
+    totals: [
+      { symbol: 'USDC', amount: 25000000000n, decimals: 6 },
+      { symbol: 'USDT', amount: 15000000000n, decimals: 6 },
+    ],
+  },
+  {
+    address: 'GBXUQR5DNRVAQB46CJMNF4XKLJZL5AOPNOPK3RLVQXPKWCZWUZNAGM3',
+    federationName: null,
+    count: 3,
+    totals: [
+      { symbol: 'EUR', amount: 20000000000n, decimals: 6 },
+    ],
+  },
+]
+
+const meta = {
+  title: 'Analytics/Charts',
+  component: AnalyticsCharts,
+  parameters: {
+    layout: 'padded',
+  },
+  tags: ['autodocs'],
+} satisfies Meta<typeof AnalyticsCharts>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+/** Full analytics dashboard with populated data. */
+export const PopulatedData: Story = {
+  args: {
+    series: mockSeriesData,
+    topTokens: mockTopTokens,
+    tokenShares: mockTokenShares,
+    totalVolume: 100000000000n,
+    statusBreakdown: mockStatusBreakdown,
+    topRecipients: mockTopRecipients,
+    unlockProgress: { unlocked: 45000000000n, deposited: 100000000000n },
+  },
+}
+
+/** Analytics dashboard with only a single token (USDC). */
+export const SingleToken: Story = {
+  args: {
+    series: [
+      { label: 'Jan 1', count: 5, volume: 1500 },
+      { label: 'Jan 8', count: 8, volume: 2400 },
+    ],
+    topTokens: [
+      { symbol: 'USDC', amount: 50000000000n, count: 20, decimals: 6 },
+    ],
+    tokenShares: [
+      { symbol: 'USDC', amount: 50000000000n, count: 20, decimals: 6 },
+    ],
+    totalVolume: 50000000000n,
+    statusBreakdown: [
+      { status: 'streaming', count: 15 },
+      { status: 'completed', count: 5 },
+    ],
+    topRecipients: [
+      {
+        address: 'GCZJVEY2HJVCWZQW2IGUBNVQ4FXQMYB7VVKQEMKJ3BMPZX5ZMMK5GO7C',
+        federationName: 'alice.stellar.org',
+        count: 20,
+        totals: [
+          { symbol: 'USDC', amount: 50000000000n, decimals: 6 },
+        ],
+      },
+    ],
+    unlockProgress: { unlocked: 25000000000n, deposited: 50000000000n },
+  },
+}
+
+/** Empty analytics state with no data. */
+export const EmptyData: Story = {
+  args: {
+    series: [],
+    topTokens: [],
+    tokenShares: [],
+    totalVolume: 0n,
+    statusBreakdown: [],
+    topRecipients: [],
+    unlockProgress: { unlocked: 0n, deposited: 0n },
+  },
+}
+
+/** Loading skeleton for analytics charts. */
+export const Loading: Story = {
+  render: () => <ChartSkeleton />,
+}

components/error-boundary/section-error-boundary.stories.tsx

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+import React from 'react'
+import type { Meta, StoryObj } from '@storybook/react'
+import { fn, mocked } from 'storybook/test'
+import * as sentryModule from '@/lib/sentry'
+import { SectionErrorBoundary } from './section-error-boundary'
+
+const meta = {
+  title: 'Error/SectionErrorBoundary',
+  component: SectionErrorBoundary,
+  parameters: {
+    layout: 'padded',
+  },
+  tags: ['autodocs'],
+  beforeEach: () => {
+    mocked(sentryModule).captureError = fn()
+  },
+} satisfies Meta<typeof SectionErrorBoundary>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+/** Normal child renders without error. */
+export const Default: Story = {
+  args: {
+    children: (
+      <div className="p-4 rounded-lg border border-border">
+        <p>This section rendered successfully.</p>
+      </div>
+    ),
+    sectionName: 'Stream list',
+  },
+}
+
+/** Child component that throws an error. */
+export const WithError: Story = {
+  args: {
+    children: (
+      <ErrorThrowingChild />
+    ),
+    sectionName: 'Analytics panel',
+    onReloadData: fn(),
+  },
+}
+
+/** Multiple sections, one with an error and one working. */
+export const MultipleWithErrorBoundary: Story = {
+  render: () => (
+    <div className="space-y-4">
+      <SectionErrorBoundary sectionName="Working section">
+        <div className="p-4 rounded-lg border border-border">
+          <p className="text-sm">This section is working normally.</p>
+        </div>
+      </SectionErrorBoundary>
+
+      <SectionErrorBoundary sectionName="Failed section" onReloadData={fn()}>
+        <ErrorThrowingChild />
+      </SectionErrorBoundary>
+
+      <SectionErrorBoundary sectionName="Another working section">
+        <div className="p-4 rounded-lg border border-border">
+          <p className="text-sm">This section is also working fine.</p>
+        </div>
+      </SectionErrorBoundary>
+    </div>
+  ),
+}
+
+function ErrorThrowingChild() {
+  throw new Error('Something went wrong in this section')
+}

components/notifications/notification-preferences.stories.tsx

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+import type { Meta, StoryObj } from '@storybook/react'
+import { fn, mocked } from 'storybook/test'
+import * as notificationPreferencesModule from '@/hooks/use-notification-preferences'
+import { NotificationPreferencesSettings } from './notification-preferences'
+
+const mockUseNotificationPreferences = (onError?: () => void) => ({
+  preferences: {
+    stream_created: true,
+    stream_cancelled: true,
+    withdrawal: true,
+  },
+  setPreference: fn(),
+})
+
+const mockUseNotificationPreferencesAllOff = (onError?: () => void) => ({
+  preferences: {
+    stream_created: false,
+    stream_cancelled: false,
+    withdrawal: false,
+  },
+  setPreference: fn(),
+})
+
+const meta = {
+  title: 'Notifications/NotificationPreferencesSettings',
+  component: NotificationPreferencesSettings,
+  parameters: {
+    layout: 'padded',
+  },
+  tags: ['autodocs'],
+  beforeEach: () => {
+    mocked(notificationPreferencesModule).useNotificationPreferences = fn(mockUseNotificationPreferences)
+  },
+} satisfies Meta<typeof NotificationPreferencesSettings>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+/** All notification types enabled (default state). */
+export const AllEnabled: Story = {}
+
+/** All notification toggles turned off. */
+export const AllDisabled: Story = {
+  beforeEach: () => {
+    mocked(notificationPreferencesModule).useNotificationPreferences = fn(mockUseNotificationPreferencesAllOff)
+  },
+}
+
+/** Mixed state with some notifications enabled and others disabled. */
+export const PartiallyEnabled: Story = {
+  beforeEach: () => {
+    mocked(notificationPreferencesModule).useNotificationPreferences = fn((onError?: () => void) => ({
+      preferences: {
+        stream_created: true,
+        stream_cancelled: false,
+        withdrawal: true,
+      },
+      setPreference: fn(),
+    }))
+  },
+}

components/settings/clear-local-data.stories.tsx

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+import React from 'react'
+import type { Meta, StoryObj } from '@storybook/react'
+import { mocked } from 'storybook/test'
+import * as settingsCopyModule from '@/lib/copy/settings'
+import { ClearLocalData } from './clear-local-data'
+
+const mockSettingsCopy = {
+  clearLocalData: {
+    title: 'Clear local data',
+    description: 'Delete all stored preferences, form drafts, and configuration.',
+    button: 'Clear local data',
+    confirmPrompt: 'Are you sure? This action cannot be undone.',
+    confirm: 'Clear everything',
+    cancel: 'Cancel',
+    toast: {
+      cleared: (count: number) => `Cleared ${count} items`,
+      reloading: 'Page reloading...',
+    },
+  },
+}
+
+const meta = {
+  title: 'Settings/ClearLocalData',
+  component: ClearLocalData,
+  parameters: {
+    layout: 'padded',
+  },
+  tags: ['autodocs'],
+  beforeEach: () => {
+    mocked(settingsCopyModule).settingsCopy = mockSettingsCopy as any
+  },
+} satisfies Meta<typeof ClearLocalData>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+/** Default state showing the clear data button. */
+export const Default: Story = {}
+
+/** Confirmation step with destructive action. */
+export const Confirming: Story = {
+  render: (args) => {
+    const Component = (props: React.ComponentProps<typeof ClearLocalData>) => {
+      const [confirming, setConfirming] = React.useState(true)
+
+      // Render by intercepting the component and forcing the confirming state
+      return (
+        <div className="max-w-md">
+          <div className="rounded-lg border border-destructive/40 p-4 space-y-3">
+            <div className="flex items-start gap-2">
+              <svg className="size-4 text-destructive shrink-0 mt-0.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 9v2m0 4v2m0 0v2M7 9h10" />
+              </svg>
+              <div>
+                <p className="text-sm font-medium">{mockSettingsCopy.clearLocalData.title}</p>
+                <p className="text-xs text-muted-foreground mt-0.5">
+                  {mockSettingsCopy.clearLocalData.description}
+                </p>
+              </div>
+            </div>
+            <div className="flex items-center gap-2">
+              <span className="text-xs text-muted-foreground">
+                {mockSettingsCopy.clearLocalData.confirmPrompt}
+              </span>
+              <button className="rounded px-3 py-1.5 text-xs font-medium bg-destructive text-destructive-foreground hover:bg-destructive/90">
+                {mockSettingsCopy.clearLocalData.confirm}
+              </button>
+              <button className="rounded px-3 py-1.5 text-xs font-medium border border-border hover:bg-muted">
+                {mockSettingsCopy.clearLocalData.cancel}
+              </button>
+            </div>
+          </div>
+        </div>
+      )
+    }
+    return <Component {...args} />
+  },
+}