feat: Add 7 organism screen components with Storybook stories

- ServerListScreen: Home page with server card grid and add server menu
- ToolsScreen: Three-panel layout (tool list, detail/form, results)
- ResourcesScreen: Two-panel with accordion sections and content preview
- PromptsScreen: Two-panel with prompt selection and message display
- LoggingScreen: Two-panel with log controls and real-time log stream
- TasksScreen: Active and completed task card sections
- HistoryScreen: Request history with search, filter, and pinned entries

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

clients/web/src/components/organisms/ToolsScreen/ToolsScreen.tsx

@@ -0,0 +1,82 @@
+import { Grid, Paper, Stack, Text, TextInput } from '@mantine/core'
+import { ListChangedIndicator } from '../../atoms/ListChangedIndicator/ListChangedIndicator'
+import { ToolListItem } from '../../molecules/ToolListItem/ToolListItem'
+import { ToolDetailPanel } from '../../molecules/ToolDetailPanel/ToolDetailPanel'
+import { ResultPanel } from '../../molecules/ResultPanel/ResultPanel'
+import type { ToolListItemProps } from '../../molecules/ToolListItem/ToolListItem'
+import type { ToolDetailPanelProps } from '../../molecules/ToolDetailPanel/ToolDetailPanel'
+import type { ResultPanelProps } from '../../molecules/ResultPanel/ResultPanel'
+
+export interface ToolsScreenProps {
+  tools: ToolListItemProps[]
+  selectedTool?: ToolDetailPanelProps
+  result?: ResultPanelProps
+  listChanged: boolean
+  searchText: string
+  onSearchChange: (text: string) => void
+  onRefreshList: () => void
+  onSelectTool: (name: string) => void
+}
+
+export function ToolsScreen({
+  tools,
+  selectedTool,
+  result,
+  listChanged,
+  searchText,
+  onSearchChange,
+  onRefreshList,
+  onSelectTool,
+}: ToolsScreenProps) {
+  const filteredTools = searchText
+    ? tools.filter((tool) => tool.name.toLowerCase().includes(searchText.toLowerCase()))
+    : tools
+
+  return (
+    <Grid>
+      <Grid.Col span={3}>
+        <Paper withBorder p="md">
+          <Stack gap="sm">
+            <ListChangedIndicator visible={listChanged} onRefresh={onRefreshList} />
+            <TextInput
+              placeholder="Search tools..."
+              value={searchText}
+              onChange={(event) => onSearchChange(event.currentTarget.value)}
+            />
+            {filteredTools.map((tool) => (
+              <ToolListItem
+                key={tool.name}
+                {...tool}
+                onClick={() => onSelectTool(tool.name)}
+              />
+            ))}
+          </Stack>
+        </Paper>
+      </Grid.Col>
+
+      <Grid.Col span={5}>
+        <Paper withBorder p="md">
+          {selectedTool ? (
+            <ToolDetailPanel {...selectedTool} />
+          ) : (
+            <Text c="dimmed" ta="center" py="xl">
+              Select a tool to view details
+            </Text>
+          )}
+        </Paper>
+      </Grid.Col>
+
+      <Grid.Col span={4}>
+        <Paper withBorder p="md">
+          {result ? (
+            <ResultPanel {...result} />
+          ) : (
+            <Text c="dimmed" ta="center" py="xl">
+              Results will appear here
+            </Text>
+          )}
+        </Paper>
+      </Grid.Col>
+    </Grid>
+  )
+}