refactor: decompose TopBar into composable shell with children slot

TopBar was a monolith that hardcoded server-specific controls (status
filters, time range, auto-refresh, search trigger). Extract these into
standalone SearchTrigger and AutoRefreshToggle components. TopBar now
accepts children for the center slot, letting consumers compose their
own controls. Fixes cameleer/cameleer-saas#53.

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

src/design-system/layout/TopBar/AutoRefreshToggle.tsx

@@ -0,0 +1,22 @@
+import styles from './TopBar.module.css'
+
+interface AutoRefreshToggleProps {
+  active: boolean
+  onChange: (active: boolean) => void
+  className?: string
+}
+
+export function AutoRefreshToggle({ active, onChange, className }: AutoRefreshToggleProps) {
+  return (
+    <button
+      className={`${styles.liveToggle} ${active ? styles.liveToggleActive : ''} ${className ?? ''}`}
+      onClick={() => onChange(!active)}
+      type="button"
+      aria-label={active ? 'Disable auto-refresh' : 'Enable auto-refresh'}
+      title={active ? 'Auto-refresh is on — click to pause' : 'Auto-refresh is paused — click to resume'}
+    >
+      <span className={styles.liveDot} />
+      {active ? 'AUTO' : 'MANUAL'}
+    </button>
+  )
+}

src/design-system/layout/TopBar/SearchTrigger.tsx

@@ -0,0 +1,24 @@
+import { Search } from 'lucide-react'
+import styles from './TopBar.module.css'
+
+interface SearchTriggerProps {
+  onClick: () => void
+  className?: string
+}
+
+export function SearchTrigger({ onClick, className }: SearchTriggerProps) {
+  return (
+    <button
+      className={`${styles.search} ${className ?? ''}`}
+      onClick={onClick}
+      type="button"
+      aria-label="Open search"
+    >
+      <span className={styles.searchIcon} aria-hidden="true">
+        <Search size={13} />
+      </span>
+      <span className={styles.searchPlaceholder}>Search... &#8984;K</span>
+      <span className={styles.kbd}>Ctrl+K</span>
+    </button>
+  )
+}

src/design-system/layout/TopBar/TopBar.tsx

@@ -1,14 +1,9 @@
 import { type ReactNode } from 'react'
-import { Search, Moon, Sun, Power } from 'lucide-react'
+import { Moon, Sun, Power } from 'lucide-react'
 import styles from './TopBar.module.css'
 import { Breadcrumb } from '../../composites/Breadcrumb/Breadcrumb'
 import { Dropdown } from '../../composites/Dropdown/Dropdown'
 import { Avatar } from '../../primitives/Avatar/Avatar'
-import { ButtonGroup } from '../../primitives/ButtonGroup/ButtonGroup'
-import type { ButtonGroupItem } from '../../primitives/ButtonGroup/ButtonGroup'
-import { TimeRangeDropdown } from '../../primitives/TimeRangeDropdown/TimeRangeDropdown'
-import { useGlobalFilters } from '../../providers/GlobalFilterProvider'
-import { useCommandPalette } from '../../providers/CommandPaletteProvider'
 import { useTheme } from '../../providers/ThemeProvider'
 import { useBreadcrumbOverride } from '../../providers/BreadcrumbProvider'
 import type { BreadcrumbItem } from '../../providers/BreadcrumbProvider'
@@ -20,15 +15,9 @@ interface TopBarProps {
   userMenuItems?: import('../../composites/Dropdown/Dropdown').DropdownItem[]
   onLogout?: () => void
   className?: string
+  children?: ReactNode
 }
 
-const STATUS_ITEMS: ButtonGroupItem[] = [
-  { value: 'completed', label: 'OK', color: 'var(--success)' },
-  { value: 'warning', label: 'Warn', color: 'var(--warning)' },
-  { value: 'failed', label: 'Error', color: 'var(--error)' },
-  { value: 'running', label: 'Running', color: 'var(--running)' },
-]
-
 export function TopBar({
   breadcrumb,
   environment,
@@ -36,9 +25,8 @@ export function TopBar({
   userMenuItems,
   onLogout,
   className,
+  children,
 }: TopBarProps) {
-  const globalFilters = useGlobalFilters()
-  const commandPalette = useCommandPalette()
   const { theme, toggleTheme } = useTheme()
   const breadcrumbOverride = useBreadcrumbOverride()
 
@@ -47,54 +35,11 @@ export function TopBar({
       {/* Left: Breadcrumb */}
       <Breadcrumb items={breadcrumbOverride ?? breadcrumb} className={styles.breadcrumb} />
 
-      {/* Search trigger */}
+      {/* Center: consumer-provided controls */}
-      <button
+      {children}
-        className={styles.search}
-        onClick={() => commandPalette.setOpen(true)}
-        type="button"
-        aria-label="Open search"
-      >
-        <span className={styles.searchIcon} aria-hidden="true">
-          <Search size={13} />
-        </span>
-        <span className={styles.searchPlaceholder}>Search... &#8984;K</span>
-        <span className={styles.kbd}>Ctrl+K</span>
-      </button>
 
-      {/* Status filter group */}
+      {/* Right: theme toggle, env badge, user */}
-      <ButtonGroup
-        items={STATUS_ITEMS}
-        value={globalFilters.statusFilters}
-        onChange={(selected) => {
-          // Sync with global filter by toggling the diff
-          const current = globalFilters.statusFilters
-          for (const v of selected) {
-            if (!current.has(v)) globalFilters.toggleStatus(v as 'completed' | 'warning' | 'failed' | 'running')
-          }
-          for (const v of current) {
-            if (!selected.has(v)) globalFilters.toggleStatus(v as 'completed' | 'warning' | 'failed' | 'running')
-          }
-        }}
-      />
-
-      {/* Time range pills */}
-      <TimeRangeDropdown
-        value={globalFilters.timeRange}
-        onChange={globalFilters.setTimeRange}
-      />
-
-      {/* Right: auto-refresh toggle, theme toggle, env badge, user */}
       <div className={styles.right}>
-        <button
-          className={`${styles.liveToggle} ${globalFilters.autoRefresh ? styles.liveToggleActive : ''}`}
-          onClick={() => globalFilters.setAutoRefresh(!globalFilters.autoRefresh)}
-          type="button"
-          aria-label={globalFilters.autoRefresh ? 'Disable auto-refresh' : 'Enable auto-refresh'}
-          title={globalFilters.autoRefresh ? 'Auto-refresh is on — click to pause' : 'Auto-refresh is paused — click to resume'}
-        >
-          <span className={styles.liveDot} />
-          {globalFilters.autoRefresh ? 'AUTO' : 'MANUAL'}
-        </button>
         <button
           className={styles.themeToggle}
           onClick={toggleTheme}

src/design-system/layout/index.ts

@@ -4,3 +4,5 @@ export { SidebarTree } from './Sidebar/SidebarTree'
 export type { SidebarTreeNode } from './Sidebar/SidebarTree'
 export { useStarred } from './Sidebar/useStarred'
 export { TopBar } from './TopBar/TopBar'
+export { SearchTrigger } from './TopBar/SearchTrigger'
+export { AutoRefreshToggle } from './TopBar/AutoRefreshToggle'

src/pages/Inventory/sections/LayoutSection.tsx

@@ -5,6 +5,8 @@ import type { SidebarTreeNode } from '../../../design-system/layout/Sidebar/Side
 import { StatusDot } from '../../../design-system/primitives/StatusDot/StatusDot'
 import { Box, Settings, FileText, ChevronRight } from 'lucide-react'
 import { TopBar } from '../../../design-system/layout/TopBar/TopBar'
+import { SearchTrigger } from '../../../design-system/layout/TopBar/SearchTrigger'
+import { AutoRefreshToggle } from '../../../design-system/layout/TopBar/AutoRefreshToggle'
 
 // ── DemoCard helper ──────────────────────────────────────────────────────────
 
@@ -122,7 +124,7 @@ export function LayoutSection() {
       <DemoCard
         id="topbar"
         title="TopBar"
-        description="Top navigation bar with breadcrumb, search trigger, status filters, time range, environment badge, and user avatar."
+        description="Composable top navigation bar. Consumers pass children for the center slot (search, filters, etc.). Shell provides breadcrumb, theme toggle, env badge, and user menu."
       >
         <div className={styles.topbarPreview}>
           <TopBar
@@ -132,9 +134,11 @@ export function LayoutSection() {
               { label: 'order-ingest' },
             ]}
             environment="production"
-
             user={{ name: 'Hendrik' }}
-          />
+          >
+            <SearchTrigger onClick={() => {}} />
+            <AutoRefreshToggle active={true} onChange={() => {}} />
+          </TopBar>
         </div>
       </DemoCard>
     </section>