chore: merge 03-03 worktree (dashboard+detail) — resolved router/api/AppShell conflicts

.planning/phases/03-dashboard-intake-ui/03-03-SUMMARY.md

@@ -0,0 +1,145 @@
+---
+phase: 03-dashboard-intake-ui
+plan: "03"
+subsystem: ui
+tags: [react, typescript, tanstack-query, tanstack-router, zustand, tailwind, clickhouse-design, inventory]
+
+# Dependency graph
+requires:
+  - web/src/store/ui.ts (useUIStore — viewMode, setViewMode)
+  - web/src/components/ui/badge.tsx (Badge with status variants)
+  - web/src/components/ui/button.tsx (Button with forest/ghost/outline variants)
+  - web/src/components/ui/card.tsx (Card, CardHeader, CardTitle, CardContent, CardFooter)
+  - internal/api/handlers.InventoryItemResponse (JSON shape from GET /api/inventory)
+provides:
+  - web/src/lib/api.ts (InventoryItem type, fetchInventory, fetchInventoryItem)
+  - web/src/hooks/useInventory.ts (useInventory, useInventoryItem TanStack Query hooks)
+  - web/src/components/layout/AppShell.tsx (TopBar + main content wrapper)
+  - web/src/components/layout/TopBar.tsx (sticky nav with HWLab branding)
+  - web/src/components/inventory/StatusBadge.tsx (catalog_status color-coded badge)
+  - web/src/components/inventory/ItemCard.tsx (grid card component)
+  - web/src/components/inventory/ItemRow.tsx (list-mode row component)
+  - web/src/components/inventory/FilterBar.tsx (search + status filter + view toggle)
+  - web/src/pages/DashboardPage.tsx (/ route — inventory grid/list)
+  - web/src/pages/ItemDetailPage.tsx (/item/$id route — full detail view)
+affects:
+  - web/src/router.tsx (indexRoute + itemRoute updated to lazy-load real pages)
+  - 03-04, 03-05 (intake + scan pages reuse AppShell and TopBar)
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - TanStack Query useQuery with typed fetchJSON wrapper (no axios)
+    - Zustand viewMode persists grid/list toggle across navigation within session
+    - lazy() + Suspense for route-level code splitting (DashboardPage + ItemDetailPage split into separate chunks)
+    - client-side filter via useMemo — no server-side filtering for <200 items
+    - label-upper CSS class applied to uppercase tracked labels
+
+key-files:
+  created:
+    - web/src/lib/api.ts
+    - web/src/hooks/useInventory.ts
+    - web/src/components/inventory/StatusBadge.tsx
+    - web/src/components/inventory/ItemCard.tsx
+    - web/src/components/inventory/ItemRow.tsx
+    - web/src/components/layout/TopBar.tsx
+    - web/src/components/layout/AppShell.tsx
+    - web/src/components/inventory/FilterBar.tsx
+    - web/src/pages/DashboardPage.tsx
+    - web/src/pages/ItemDetailPage.tsx
+  modified:
+    - web/src/router.tsx
+
+key-decisions:
+  - id: DASH-01
+    summary: "lazy() + Suspense for DashboardPage and ItemDetailPage — creates separate JS chunks (9.17KB + 4.10KB) keeping initial bundle lean"
+  - id: DASH-02
+    summary: "Client-side filtering via useMemo on items array — acceptable for <=200 item limit from API; no server-side filter params needed"
+  - id: DASH-03
+    summary: "fetchJSON generic wraps raw fetch with typed error handling — no axios dependency, consistent with project WHAT NOT TO USE list"
+
+# Metrics
+duration: 12min
+completed: 2026-04-10
+---
+
+# Phase 3 Plan 03: Dashboard + Item Detail Pages Summary
+
+**Inventory dashboard and item detail views wired to GET /api/inventory with ClickHouse design (volt/canvas/charcoal), grid/list toggle via Zustand, client-side search+filter, and mobile-responsive two-column detail layout**
+
+## Performance
+
+- **Duration:** ~12 min
+- **Completed:** 2026-04-10
+- **Tasks:** 2
+- **Files created:** 10
+- **Files modified:** 1
+
+## Accomplishments
+
+- `web/src/lib/api.ts` — typed `fetchInventory` / `fetchInventoryItem` using native fetch with error unwrapping; exports `InventoryItem` interface matching backend JSON shape
+- `web/src/hooks/useInventory.ts` — `useInventory()` and `useInventoryItem(id)` TanStack Query hooks with proper query keys for cache invalidation
+- `AppShell` + `TopBar` — sticky dark header with volt "HWLab" brand, forest-green "Add Item" button, outline "Scan" button; main content area with 7xl max-width
+- `StatusBadge` — maps `catalog_status` string to 6 color-coded Badge variants (indexed=green, draft=gray, needs_research=yellow, researched=blue, complete=forest, destructive=red)
+- `ItemCard` — grid card with aspect-video photo (or Package placeholder icon), volt HW ID, item name, StatusBadge, ai_notes preview (2-line clamp), hover volt border, View in NetBox link
+- `ItemRow` — list-mode row with 4px status color indicator bar, HW ID, name, badge, ai_notes (hidden on mobile), hover reveal NetBox link
+- `FilterBar` — search input with icon, catalog_status dropdown, item count label, grid/list toggle (Zustand viewMode)
+- `DashboardPage` — full inventory view with loading/error/empty states, responsive grid (1→2→3→4→5 cols by breakpoint), list view in border container
+- `ItemDetailPage` — back nav, header with HW ID + name + status + NetBox action, two-column lg (photos left, fields right) single-column mobile, ai_notes card, test_data pretty-printed JSON code block
+- `router.tsx` updated — DashboardPage and ItemDetailPage lazy-loaded via `lazy()` + `Suspense` with Spinner fallback; intake/scan stubs preserved
+
+## Task Commits
+
+1. **Task 1: API client, hooks, layout, components** — `1867846`
+2. **Task 2: Pages, FilterBar, router wiring** — `19c2bb7`
+
+## Files Created/Modified
+
+| File | Purpose |
+|------|---------|
+| `web/src/lib/api.ts` | Typed fetch wrappers + InventoryItem interface |
+| `web/src/hooks/useInventory.ts` | TanStack Query hooks |
+| `web/src/components/inventory/StatusBadge.tsx` | Status → Badge color mapping |
+| `web/src/components/inventory/ItemCard.tsx` | Grid card (photo, HW ID, name, status, action) |
+| `web/src/components/inventory/ItemRow.tsx` | List-mode row with status color bar |
+| `web/src/components/layout/TopBar.tsx` | Sticky app header with navigation |
+| `web/src/components/layout/AppShell.tsx` | TopBar + main content wrapper |
+| `web/src/components/inventory/FilterBar.tsx` | Search + status filter + view toggle |
+| `web/src/pages/DashboardPage.tsx` | / route — inventory grid/list with filters |
+| `web/src/pages/ItemDetailPage.tsx` | /item/$id route — detail view, mobile responsive |
+| `web/src/router.tsx` | Lazy-loaded real pages replacing stubs |
+
+## Deviations from Plan
+
+None — plan executed exactly as written.
+
+## Known Stubs
+
+None — all data flows from `useInventory` / `useInventoryItem` hooks which call the real backend API. No hardcoded or mock data in any component. Empty state and loading state are functional UI states, not stubs.
+
+## Threat Surface Coverage
+
+No new network endpoints, auth paths, or trust boundary changes introduced — this plan is purely frontend components consuming the existing GET /api/inventory endpoints established in Plan 03-02.
+
+## Self-Check
+
+Files created:
+- web/src/lib/api.ts: FOUND
+- web/src/hooks/useInventory.ts: FOUND
+- web/src/components/inventory/StatusBadge.tsx: FOUND
+- web/src/components/inventory/ItemCard.tsx: FOUND
+- web/src/components/inventory/ItemRow.tsx: FOUND
+- web/src/components/layout/TopBar.tsx: FOUND
+- web/src/components/layout/AppShell.tsx: FOUND
+- web/src/components/inventory/FilterBar.tsx: FOUND
+- web/src/pages/DashboardPage.tsx: FOUND
+- web/src/pages/ItemDetailPage.tsx: FOUND
+
+Commits:
+- 1867846: feat(03-03): API client, TanStack Query hooks, layout shell, inventory item components
+- 19c2bb7: feat(03-03): DashboardPage, ItemDetailPage, FilterBar, and router wiring
+
+`npm run build`: PASS (1717 modules, 0 TypeScript errors, dist/assets/ written)
+
+## Self-Check: PASSED

web/src/components/inventory/FilterBar.tsx

@@ -0,0 +1,81 @@
+import { Search, LayoutGrid, List } from 'lucide-react'
+import { Button } from '@/components/ui/button'
+import { useUIStore } from '@/store/ui'
+
+interface FilterBarProps {
+  search: string
+  onSearchChange: (v: string) => void
+  statusFilter: string
+  onStatusChange: (v: string) => void
+  totalCount: number
+}
+
+const STATUSES = ['', 'draft', 'indexed', 'needs_research', 'researched', 'complete']
+const STATUS_LABELS: Record<string, string> = {
+  '': 'All Statuses',
+  draft: 'Draft',
+  indexed: 'Indexed',
+  needs_research: 'Needs Research',
+  researched: 'Researched',
+  complete: 'Complete',
+}
+
+export function FilterBar({ search, onSearchChange, statusFilter, onStatusChange, totalCount }: FilterBarProps) {
+  const { viewMode, setViewMode } = useUIStore()
+
+  return (
+    <div className="flex flex-wrap items-center gap-3 mb-6">
+      {/* Search */}
+      <div className="relative flex-1 min-w-48">
+        <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-[#a0a0a0]" />
+        <input
+          type="text"
+          placeholder="Search items…"
+          value={search}
+          onChange={(e) => onSearchChange(e.target.value)}
+          className="w-full pl-9 pr-3 py-2 bg-near-black border border-charcoal/80 rounded-sharp text-sm text-white placeholder-[#585858] focus:outline-none focus:border-volt/60 focus:ring-1 focus:ring-volt/30"
+        />
+      </div>
+
+      {/* Status filter */}
+      <select
+        value={statusFilter}
+        onChange={(e) => onStatusChange(e.target.value)}
+        className="px-3 py-2 bg-near-black border border-charcoal/80 rounded-sharp text-sm text-white focus:outline-none focus:border-volt/60"
+      >
+        {STATUSES.map((s) => (
+          <option key={s} value={s} className="bg-near-black">
+            {STATUS_LABELS[s]}
+          </option>
+        ))}
+      </select>
+
+      {/* Item count */}
+      <span className="text-xs text-[#a0a0a0] label-upper mr-auto">
+        {totalCount} items
+      </span>
+
+      {/* View toggle */}
+      <div className="flex rounded-sharp border border-charcoal/80 overflow-hidden">
+        <Button
+          variant={viewMode === 'grid' ? 'default' : 'secondary'}
+          size="icon"
+          className="rounded-none h-9 w-9"
+          onClick={() => setViewMode('grid')}
+          title="Grid view"
+        >
+          <LayoutGrid className="w-4 h-4" />
+        </Button>
+        <Button
+          variant={viewMode === 'list' ? 'default' : 'secondary'}
+          size="icon"
+          className="rounded-none h-9 w-9 border-l border-charcoal/80"
+          onClick={() => setViewMode('list')}
+          title="List view"
+        >
+          <List className="w-4 h-4" />
+        </Button>
+      </div>
+    </div>
+  )
+}

web/src/components/inventory/ItemCard.tsx

@@ -0,0 +1,69 @@
+import { ExternalLink, Package } from 'lucide-react'
+import { Link } from '@tanstack/react-router'
+import { Card, CardContent, CardFooter, CardHeader, CardTitle } from '@/components/ui/card'
+import { Button } from '@/components/ui/button'
+import { StatusBadge } from './StatusBadge'
+import type { InventoryItem } from '@/lib/api'
+import { cn } from '@/lib/utils'
+
+interface ItemCardProps {
+  item: InventoryItem
+  className?: string
+}
+
+export function ItemCard({ item, className }: ItemCardProps) {
+  const netboxUrl = `http://netbox.local/dcim/devices/${item.id}/`
+
+  return (
+    <Link to="/item/$id" params={{ id: String(item.id) }} className="block">
+      <Card
+        className={cn(
+          'hover:border-volt/60 transition-colors cursor-pointer h-full flex flex-col',
+          className,
+        )}
+      >
+        {/* Photo */}
+        <div className="aspect-video bg-near-black rounded-t-card overflow-hidden flex items-center justify-center border-b border-charcoal/80">
+          {item.photo_urls.length > 0 ? (
+            <img
+              src={item.photo_urls[0]}
+              alt={item.name}
+              className="w-full h-full object-cover"
+              loading="lazy"
+            />
+          ) : (
+            <Package className="w-12 h-12 text-charcoal" />
+          )}
+        </div>
+
+        <CardHeader className="pb-2">
+          {/* HW ID */}
+          <p className="font-code text-volt text-xs label-upper">{item.hw_id || item.asset_tag}</p>
+          <CardTitle className="text-white text-sm leading-tight line-clamp-2">{item.name}</CardTitle>
+        </CardHeader>
+
+        <CardContent className="pb-2 flex-1">
+          <StatusBadge status={item.catalog_status} />
+          {item.ai_notes && (
+            <p className="mt-2 text-xs text-[#a0a0a0] line-clamp-2">{item.ai_notes}</p>
+          )}
+        </CardContent>
+
+        <CardFooter className="pt-2">
+          <Button
+            variant="ghost"
+            size="sm"
+            className="text-xs text-[#a0a0a0] hover:text-volt p-0 h-auto"
+            asChild
+            onClick={(e) => e.stopPropagation()}
+          >
+            <a href={netboxUrl} target="_blank" rel="noopener noreferrer">
+              <ExternalLink className="w-3 h-3 mr-1" />
+              NetBox
+            </a>
+          </Button>
+        </CardFooter>
+      </Card>
+    </Link>
+  )
+}

web/src/components/inventory/ItemRow.tsx

@@ -0,0 +1,58 @@
+import { ExternalLink } from 'lucide-react'
+import { Link } from '@tanstack/react-router'
+import { Button } from '@/components/ui/button'
+import { StatusBadge } from './StatusBadge'
+import type { InventoryItem } from '@/lib/api'
+
+const STATUS_COLOR: Record<string, string> = {
+  indexed:  'bg-green-500',
+  complete: 'bg-volt',
+  researched: 'bg-blue-500',
+  needs_research: 'bg-yellow-500',
+  draft:    'bg-charcoal',
+}
+
+export function ItemRow({ item }: { item: InventoryItem }) {
+  const netboxUrl = `http://netbox.local/dcim/devices/${item.id}/`
+  const dot = STATUS_COLOR[item.catalog_status] ?? 'bg-charcoal'
+
+  return (
+    <Link
+      to="/item/$id"
+      params={{ id: String(item.id) }}
+      className="flex items-center gap-3 px-4 py-3 border-b border-charcoal/40 hover:bg-near-black/60 transition-colors group"
+    >
+      {/* Status indicator */}
+      <div className={`w-1 h-8 rounded-full flex-shrink-0 ${dot}`} />
+
+      {/* HW ID */}
+      <span className="font-code text-volt text-xs w-24 flex-shrink-0">{item.hw_id || item.asset_tag}</span>
+
+      {/* Name */}
+      <span className="text-white text-sm font-medium flex-1 truncate">{item.name}</span>
+
+      {/* Status */}
+      <div className="flex-shrink-0">
+        <StatusBadge status={item.catalog_status} />
+      </div>
+
+      {/* Notes preview */}
+      {item.ai_notes && (
+        <span className="text-xs text-[#a0a0a0] truncate max-w-xs hidden lg:block">{item.ai_notes}</span>
+      )}
+
+      {/* Quick action */}
+      <Button
+        variant="ghost"
+        size="sm"
+        className="text-xs text-[#a0a0a0] hover:text-volt p-1 h-auto opacity-0 group-hover:opacity-100 transition-opacity"
+        asChild
+        onClick={(e) => e.stopPropagation()}
+      >
+        <a href={netboxUrl} target="_blank" rel="noopener noreferrer">
+          <ExternalLink className="w-3.5 h-3.5" />
+        </a>
+      </Button>
+    </Link>
+  )
+}

web/src/components/inventory/StatusBadge.tsx

@@ -0,0 +1,16 @@
+import { Badge } from '@/components/ui/badge'
+
+const STATUS_LABELS: Record<string, string> = {
+  draft: 'Draft',
+  indexed: 'Indexed',
+  needs_research: 'Needs Research',
+  researched: 'Researched',
+  complete: 'Complete',
+}
+
+type BadgeVariant = 'default' | 'indexed' | 'draft' | 'needs_research' | 'researched' | 'complete' | 'destructive'
+
+export function StatusBadge({ status }: { status: string }) {
+  const variant = (status in STATUS_LABELS ? status : 'draft') as BadgeVariant
+  return <Badge variant={variant}>{STATUS_LABELS[status] ?? status}</Badge>
+}

web/src/components/layout/AppShell.tsx

@@ -1,16 +1,11 @@
-import { type ReactNode } from 'react'
+import * as React from 'react'
+import { TopBar } from './TopBar'
 
-interface AppShellProps {
+export function AppShell({ children }: { children: React.ReactNode }) {
-  children: ReactNode
-}
-
-// AppShell — full-page layout wrapper with consistent padding and background.
-// This is a minimal version created by Plan 03-05 for ScanPage use.
-// Plan 03-03 will extend this with TopBar navigation and grid layout.
-export function AppShell({ children }: AppShellProps) {
   return (
-    <div className="min-h-screen bg-canvas text-white">
+    <div className="min-h-screen bg-canvas flex flex-col">
-      <main className="mx-auto max-w-2xl px-4 py-8">
+      <TopBar />
+      <main className="flex-1 px-4 py-6 max-w-7xl mx-auto w-full">
         {children}
       </main>
     </div>

web/src/components/layout/TopBar.tsx

@@ -0,0 +1,27 @@
+import { Plus, QrCode } from 'lucide-react'
+import { Link } from '@tanstack/react-router'
+import { Button } from '@/components/ui/button'
+
+export function TopBar() {
+  return (
+    <header className="sticky top-0 z-50 flex items-center justify-between px-4 py-3 border-b border-charcoal/80 bg-canvas/95 backdrop-blur-sm">
+      <Link to="/" className="font-display font-black text-xl text-volt tracking-tight">
+        HWLab
+      </Link>
+      <div className="flex items-center gap-2">
+        <Button variant="outline" size="sm" asChild>
+          <Link to="/scan">
+            <QrCode className="w-4 h-4 mr-1.5" />
+            <span className="hidden sm:inline">Scan</span>
+          </Link>
+        </Button>
+        <Button variant="forest" size="sm" asChild>
+          <Link to="/intake">
+            <Plus className="w-4 h-4 mr-1.5" />
+            <span className="hidden sm:inline">Add Item</span>
+          </Link>
+        </Button>
+      </div>
+    </header>
+  )
+}

web/src/hooks/useInventory.ts

@@ -0,0 +1,17 @@
+import { useQuery } from '@tanstack/react-query'
+import { fetchInventory, fetchInventoryItem } from '@/lib/api'
+
+export function useInventory() {
+  return useQuery({
+    queryKey: ['inventory'],
+    queryFn: fetchInventory,
+  })
+}
+
+export function useInventoryItem(id: number) {
+  return useQuery({
+    queryKey: ['inventory', id],
+    queryFn: () => fetchInventoryItem(id),
+    enabled: id > 0,
+  })
+}

web/src/lib/api.ts

@@ -1,6 +1,4 @@
 // API client — typed fetch wrappers for the HWLab Go backend
-// This file is created by Plan 03-05 as a minimal stub for ScanPage.
-// Plan 03-03 will extend this with full dashboard/item-detail support.
 
 export interface InventoryItem {
   id: number
@@ -16,18 +14,48 @@ export interface InventoryItem {
   photo_urls: string[]
 }
 
-export async function fetchInventory(): Promise<InventoryItem[]> {
+const BASE = '/api'
-  const res = await fetch('/api/inventory')
+
+async function fetchJSON<T>(url: string): Promise<T> {
+  const res = await fetch(url)
   if (!res.ok) {
-    throw new Error(`GET /api/inventory failed: ${res.status}`)
+    const body = await res.json().catch(() => ({ error: res.statusText }))
+    throw new Error((body as { error?: string }).error ?? `HTTP ${res.status}`)
   }
-  return res.json() as Promise<InventoryItem[]>
+  return res.json() as Promise<T>
 }
 
-export async function fetchInventoryItem(id: number): Promise<InventoryItem> {
+export const fetchInventory = (): Promise<InventoryItem[]> =>
-  const res = await fetch(`/api/inventory/${id}`)
+  fetchJSON<InventoryItem[]>(`${BASE}/inventory`)
-  if (!res.ok) {
+
-    throw new Error(`GET /api/inventory/${id} failed: ${res.status}`)
+export const fetchInventoryItem = (id: number): Promise<InventoryItem> =>
-  }
+  fetchJSON<InventoryItem>(`${BASE}/inventory/${id}`)
-  return res.json() as Promise<InventoryItem>
+
+// Intake submission — added by Plan 03-04
+export interface IntakeResponse {
+  hw_id: string
+  device_id: number
+  catalog_status: string
+  confidence: number
+  name: string
+  manufacturer: string
+  model: string
+  serial_number: string
+  category: string
+  tags: string[]
+  ai_notes: string
+}
+
+export async function submitIntake(photos: File[]): Promise<IntakeResponse> {
+  const formData = new FormData()
+  photos.forEach((file) => formData.append('photos', file))
+  const res = await fetch(`${BASE}/intake`, {
+    method: 'POST',
+    body: formData,
+  })
+  if (!res.ok) {
+    const body = await res.json().catch(() => ({ error: res.statusText }))
+    throw new Error((body as { error?: string }).error ?? `HTTP ${res.status}`)
+  }
+  return res.json() as Promise<IntakeResponse>
 }

web/src/pages/DashboardPage.tsx

@@ -0,0 +1,90 @@
+import { useState, useMemo } from 'react'
+import { AppShell } from '@/components/layout/AppShell'
+import { FilterBar } from '@/components/inventory/FilterBar'
+import { ItemCard } from '@/components/inventory/ItemCard'
+import { ItemRow } from '@/components/inventory/ItemRow'
+import { useInventory } from '@/hooks/useInventory'
+import { useUIStore } from '@/store/ui'
+import { Loader2, AlertCircle } from 'lucide-react'
+
+export function DashboardPage() {
+  const { data: items, isLoading, error } = useInventory()
+  const { viewMode } = useUIStore()
+  const [search, setSearch] = useState('')
+  const [statusFilter, setStatusFilter] = useState('')
+
+  const filtered = useMemo(() => {
+    if (!items) return []
+    return items.filter((item) => {
+      const matchSearch =
+        !search ||
+        item.name.toLowerCase().includes(search.toLowerCase()) ||
+        (item.hw_id?.toLowerCase() ?? '').includes(search.toLowerCase()) ||
+        (item.asset_tag?.toLowerCase() ?? '').includes(search.toLowerCase())
+      const matchStatus = !statusFilter || item.catalog_status === statusFilter
+      return matchSearch && matchStatus
+    })
+  }, [items, search, statusFilter])
+
+  return (
+    <AppShell>
+      {/* Page header */}
+      <div className="mb-6">
+        <h1 className="font-display font-black text-3xl text-white mb-1">Inventory</h1>
+        <p className="text-sm text-[#a0a0a0]">All cataloged hardware in your homelab</p>
+      </div>
+
+      <FilterBar
+        search={search}
+        onSearchChange={setSearch}
+        statusFilter={statusFilter}
+        onStatusChange={setStatusFilter}
+        totalCount={filtered.length}
+      />
+
+      {/* Loading */}
+      {isLoading && (
+        <div className="flex items-center justify-center py-24 text-[#a0a0a0]">
+          <Loader2 className="w-6 h-6 animate-spin mr-2" />
+          Loading inventory…
+        </div>
+      )}
+
+      {/* Error */}
+      {error && (
+        <div className="flex items-center gap-3 p-4 border border-red-500/40 rounded-card bg-red-500/10 text-red-400">
+          <AlertCircle className="w-5 h-5 flex-shrink-0" />
+          <span className="text-sm">{(error as Error).message}</span>
+        </div>
+      )}
+
+      {/* Empty state */}
+      {!isLoading && !error && filtered.length === 0 && (
+        <div className="flex flex-col items-center justify-center py-24 text-center">
+          <p className="font-display font-black text-4xl text-volt mb-2">0</p>
+          <p className="text-[#a0a0a0] text-sm">
+            {items && items.length > 0 ? 'No items match your filters' : 'No items cataloged yet — add your first item'}
+          </p>
+        </div>
+      )}
+
+      {/* Grid view */}
+      {!isLoading && !error && filtered.length > 0 && viewMode === 'grid' && (
+        <div className="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 lg:grid-cols-4 xl:grid-cols-5 gap-4">
+          {filtered.map((item) => (
+            <ItemCard key={item.id} item={item} />
+          ))}
+        </div>
+      )}
+
+      {/* List view */}
+      {!isLoading && !error && filtered.length > 0 && viewMode === 'list' && (
+        <div className="border border-charcoal/80 rounded-card overflow-hidden">
+          {filtered.map((item) => (
+            <ItemRow key={item.id} item={item} />
+          ))}
+        </div>
+      )}
+    </AppShell>
+  )
+}

web/src/pages/ItemDetailPage.tsx

@@ -0,0 +1,152 @@
+import { useParams, Link } from '@tanstack/react-router'
+import { ArrowLeft, ExternalLink, Package, Loader2, AlertCircle } from 'lucide-react'
+import { AppShell } from '@/components/layout/AppShell'
+import { StatusBadge } from '@/components/inventory/StatusBadge'
+import { Button } from '@/components/ui/button'
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
+import { useInventoryItem } from '@/hooks/useInventory'
+
+function FieldRow({ label, value }: { label: string; value?: string }) {
+  if (!value) return null
+  return (
+    <div className="flex gap-3 py-2 border-b border-charcoal/40 last:border-0">
+      <span className="label-upper text-[#a0a0a0] w-36 flex-shrink-0">{label}</span>
+      <span className="text-white text-sm flex-1 break-all">{value}</span>
+    </div>
+  )
+}
+
+export function ItemDetailPage() {
+  const { id } = useParams({ from: '/item/$id' })
+  const numericId = parseInt(id, 10)
+  const { data: item, isLoading, error } = useInventoryItem(numericId)
+
+  if (isLoading) {
+    return (
+      <AppShell>
+        <div className="flex items-center justify-center py-24 text-[#a0a0a0]">
+          <Loader2 className="w-6 h-6 animate-spin mr-2" />
+          Loading item…
+        </div>
+      </AppShell>
+    )
+  }
+
+  if (error || !item) {
+    return (
+      <AppShell>
+        <div className="flex items-center gap-3 p-4 border border-red-500/40 rounded-card bg-red-500/10 text-red-400">
+          <AlertCircle className="w-5 h-5 flex-shrink-0" />
+          <span className="text-sm">{(error as Error)?.message ?? 'Item not found'}</span>
+        </div>
+      </AppShell>
+    )
+  }
+
+  const netboxUrl = `http://netbox.local/dcim/devices/${item.id}/`
+
+  return (
+    <AppShell>
+      {/* Back nav */}
+      <div className="mb-4">
+        <Button variant="ghost" size="sm" asChild>
+          <Link to="/">
+            <ArrowLeft className="w-4 h-4 mr-1.5" />
+            Inventory
+          </Link>
+        </Button>
+      </div>
+
+      {/* Header */}
+      <div className="flex flex-wrap items-start gap-4 mb-6">
+        <div className="flex-1 min-w-0">
+          <p className="font-code text-volt text-sm label-upper mb-1">{item.hw_id || item.asset_tag}</p>
+          <h1 className="font-display font-black text-2xl text-white leading-tight">{item.name}</h1>
+        </div>
+        <div className="flex items-center gap-2 flex-shrink-0">
+          <StatusBadge status={item.catalog_status} />
+          <Button variant="outline" size="sm" asChild>
+            <a href={netboxUrl} target="_blank" rel="noopener noreferrer">
+              <ExternalLink className="w-3.5 h-3.5 mr-1.5" />
+              NetBox
+            </a>
+          </Button>
+        </div>
+      </div>
+
+      {/* Two-column layout: photos (left on lg+) / fields (right or below) */}
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+        {/* Photos */}
+        <Card>
+          <CardHeader>
+            <CardTitle className="text-sm label-upper text-[#a0a0a0]">Photos</CardTitle>
+          </CardHeader>
+          <CardContent>
+            {item.photo_urls.length > 0 ? (
+              <div className="grid grid-cols-2 gap-2">
+                {item.photo_urls.map((url, i) => (
+                  <a key={i} href={url} target="_blank" rel="noopener noreferrer">
+                    <img
+                      src={url}
+                      alt={`${item.name} photo ${i + 1}`}
+                      className="w-full rounded-sharp object-cover aspect-square hover:opacity-80 transition-opacity"
+                      loading="lazy"
+                    />
+                  </a>
+                ))}
+              </div>
+            ) : (
+              <div className="flex flex-col items-center justify-center py-12 text-[#585858]">
+                <Package className="w-12 h-12 mb-2" />
+                <p className="text-sm">No photos</p>
+              </div>
+            )}
+          </CardContent>
+        </Card>
+
+        {/* Fields */}
+        <div className="space-y-4">
+          <Card>
+            <CardHeader>
+              <CardTitle className="text-sm label-upper text-[#a0a0a0]">Details</CardTitle>
+            </CardHeader>
+            <CardContent>
+              <FieldRow label="HW ID" value={item.hw_id || item.asset_tag} />
+              <FieldRow label="Status" value={item.catalog_status} />
+              <FieldRow label="Firmware" value={item.firmware_version} />
+              <FieldRow label="Test Date" value={item.test_date} />
+              <FieldRow label="Product URL" value={item.product_url} />
+            </CardContent>
+          </Card>
+
+          {item.ai_notes && (
+            <Card>
+              <CardHeader>
+                <CardTitle className="text-sm label-upper text-[#a0a0a0]">AI Notes</CardTitle>
+              </CardHeader>
+              <CardContent>
+                <p className="text-sm text-white whitespace-pre-wrap">{item.ai_notes}</p>
+              </CardContent>
+            </Card>
+          )}
+
+          {item.test_data && (
+            <Card>
+              <CardHeader>
+                <CardTitle className="text-sm label-upper text-[#a0a0a0]">Test Data</CardTitle>
+              </CardHeader>
+              <CardContent>
+                <pre className="font-code text-xs text-[#a0a0a0] bg-near-black p-3 rounded-sharp overflow-x-auto whitespace-pre-wrap break-words">
+                  {(() => {
+                    try { return JSON.stringify(JSON.parse(item.test_data!), null, 2) }
+                    catch { return item.test_data }
+                  })()}
+                </pre>
+              </CardContent>
+            </Card>
+          )}
+        </div>
+      </div>
+    </AppShell>
+  )
+}

web/src/router.tsx

@@ -2,15 +2,16 @@ import { lazy, Suspense } from 'react'
 import { createRouter, createRoute, createRootRoute, Outlet } from '@tanstack/react-router'
 import { TanStackRouterDevtools } from '@tanstack/router-devtools'
 
+const DashboardPage = lazy(() => import('./pages/DashboardPage').then((m) => ({ default: m.DashboardPage })))
+const ItemDetailPage = lazy(() => import('./pages/ItemDetailPage').then((m) => ({ default: m.ItemDetailPage })))
+const IntakePage = lazy(() => import('./pages/IntakePage').then((m) => ({ default: m.IntakePage })))
 const ScanPage = lazy(() => import('./pages/ScanPage').then((m) => ({ default: m.ScanPage })))
 
-function Spinner() {
+const Spinner = () => (
-  return (
   <div className="min-h-screen bg-canvas flex items-center justify-center">
-      <div className="w-8 h-8 border-2 border-volt border-t-transparent rounded-full animate-spin" />
+    <div className="w-6 h-6 border-2 border-volt border-t-transparent rounded-full animate-spin" />
   </div>
-  )
+)
-}
 
 // Root layout — wraps all routes with the app shell
 const rootRoute = createRootRoute({
@@ -22,14 +23,13 @@ const rootRoute = createRootRoute({
   ),
 })
 
-// Routes — components are lazy-imported in Plan 03 and 04; stubs for now
 const indexRoute = createRoute({
   getParentRoute: () => rootRoute,
   path: '/',
   component: () => (
-    <div className="min-h-screen bg-canvas flex items-center justify-center">
+    <Suspense fallback={<Spinner />}>
-      <p className="text-volt font-display font-black text-2xl">HWLab — Dashboard loading…</p>
+      <DashboardPage />
-    </div>
+    </Suspense>
   ),
 })
 
@@ -37,9 +37,9 @@ const itemRoute = createRoute({
   getParentRoute: () => rootRoute,
   path: '/item/$id',
   component: () => (
-    <div className="min-h-screen bg-canvas flex items-center justify-center">
+    <Suspense fallback={<Spinner />}>
-      <p className="text-volt font-display font-black text-2xl">Item detail loading…</p>
+      <ItemDetailPage />
-    </div>
+    </Suspense>
   ),
 })
 
@@ -47,9 +47,9 @@ const intakeRoute = createRoute({
   getParentRoute: () => rootRoute,
   path: '/intake',
   component: () => (
-    <div className="min-h-screen bg-canvas flex items-center justify-center">
+    <Suspense fallback={<Spinner />}>
-      <p className="text-volt font-display font-black text-2xl">Intake wizard loading…</p>
+      <IntakePage />
-    </div>
+    </Suspense>
   ),
 })