feat: Add Mantine theme, 12 atom components, and 25 molecule components with Storybook stories

- Mantine theme with component extensions (Badge, Card, Paper, Button, etc.)
- CSS custom properties for design tokens (--inspector-* vars)
- Dark/light mode support with auto detection
- 12 atoms: StatusIndicator, AnnotationBadge, CapabilityItem, LogEntry,
  ProgressDisplay, ContentViewer, ListChangedIndicator, CopyButton,
  ConnectionToggle, TransportBadge, InlineError, MessageBubble
- 25 molecules: ServerCard, AddServerMenu, SchemaForm, ToolListItem,
  ToolDetailPanel, ResultPanel, ResourceListItem, ResourcePreviewPanel,
  ResourceTemplateInput, PromptArgumentsForm, PromptMessagesDisplay,
  LogControls, TaskCard, HistoryEntry, ServerInfoContent, ServerSettingsForm,
  RootsTable, SamplingRequestPanel, ElicitationFormPanel, ElicitationUrlPanel,
  InlineSamplingRequest, InlineElicitationRequest, PendingClientRequests,
  ImportServerJsonPanel, ExperimentalFeaturesPanel
- Exclude storybook-static from version control
- Exclude .stories.tsx from app tsconfig (Storybook-only modules)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

clients/web/src/components/molecules/ResourcePreviewPanel/ResourcePreviewPanel.stories.tsx

@@ -0,0 +1,68 @@
+import type { Meta, StoryObj } from '@storybook/react-vite'
+import { fn } from 'storybook/test'
+import { ResourcePreviewPanel } from './ResourcePreviewPanel'
+
+const meta: Meta<typeof ResourcePreviewPanel> = {
+  title: 'Molecules/ResourcePreviewPanel',
+  component: ResourcePreviewPanel,
+  args: {
+    onCopy: fn(),
+    onSubscribe: fn(),
+    onUnsubscribe: fn(),
+  },
+}
+
+export default meta
+type Story = StoryObj<typeof ResourcePreviewPanel>
+
+export const JsonResource: Story = {
+  args: {
+    uri: 'file:///config.json',
+    mimeType: 'application/json',
+    content: JSON.stringify({ name: 'mcp-inspector', version: '2.0.0', debug: true }, null, 2),
+    isSubscribed: false,
+    lastUpdated: '2026-03-17T10:30:00Z',
+  },
+}
+
+export const TextResource: Story = {
+  args: {
+    uri: 'file:///readme.txt',
+    mimeType: 'text/plain',
+    content: 'This is a plain text resource with some example content.\nLine two of the content.',
+    isSubscribed: false,
+  },
+}
+
+export const Subscribed: Story = {
+  args: {
+    uri: 'file:///data.json',
+    mimeType: 'application/json',
+    content: JSON.stringify({ status: 'active' }, null, 2),
+    isSubscribed: true,
+    lastUpdated: '2026-03-17T12:00:00Z',
+  },
+}
+
+export const NotSubscribed: Story = {
+  args: {
+    uri: 'file:///data.json',
+    mimeType: 'application/json',
+    content: JSON.stringify({ status: 'active' }, null, 2),
+    isSubscribed: false,
+  },
+}
+
+export const WithAnnotations: Story = {
+  args: {
+    uri: 'file:///settings.json',
+    mimeType: 'application/json',
+    content: JSON.stringify({ theme: 'dark', lang: 'en' }, null, 2),
+    isSubscribed: false,
+    annotations: {
+      audience: 'application',
+      priority: 0.8,
+    },
+    lastUpdated: '2026-03-17T09:00:00Z',
+  },
+}