feat: add mobile shell and unified search

apps/mobile-rn/__tests__/theme-parity.test.ts

@@ -0,0 +1,48 @@
+import { RAW, STATUS } from '../../../packages/ui/src/theme-raw'
+import {
+  D3RO_NATIVE_RAW,
+  D3RO_NATIVE_STATUS,
+  getD3roNativePalette,
+} from '@d3ro/ui-native'
+
+type Rgb = readonly [number, number, number]
+
+function rgb(hex: string): Rgb {
+  const normalized = hex.replace('#', '')
+  if (!/^[0-9a-f]{6}$/i.test(normalized)) throw new Error(`Expected 6-digit hex, got ${hex}`)
+  return [0, 2, 4].map((offset) => Number.parseInt(normalized.slice(offset, offset + 2), 16)) as unknown as Rgb
+}
+
+function luminance(hex: string): number {
+  const channels = rgb(hex).map((value) => {
+    const channel = value / 255
+    return channel <= 0.04045 ? channel / 12.92 : ((channel + 0.055) / 1.055) ** 2.4
+  })
+  return (0.2126 * channels[0]!) + (0.7152 * channels[1]!) + (0.0722 * channels[2]!)
+}
+
+function contrast(foreground: string, background: string): number {
+  const [lighter, darker] = [luminance(foreground), luminance(background)].sort((a, b) => b - a)
+  return (lighter! + 0.05) / (darker! + 0.05)
+}
+
+describe('mobile v4 theme contract', () => {
+  test.each(['dark', 'light'] as const)('%s raw tokens stay in desktop SSOT parity', (mode) => {
+    for (const group of ['bg', 'text', 'border', 'accent'] as const) {
+      for (const [key, value] of Object.entries(D3RO_NATIVE_RAW[mode][group])) {
+        expect(RAW[mode][group][key as keyof typeof RAW[typeof mode][typeof group]]).toBe(value)
+      }
+    }
+    expect(D3RO_NATIVE_STATUS[mode]).toEqual(STATUS[mode])
+  })
+
+  test.each(['dark', 'light'] as const)('%s readable roles meet 4.5:1 contrast', (mode) => {
+    const palette = getD3roNativePalette(mode)
+    for (const background of [palette.bg.app, palette.bg.card, palette.bg.elevated, palette.bg.sidebar]) {
+      for (const foreground of [palette.text.primary, palette.text.secondary, palette.text.tertiary]) {
+        expect(contrast(foreground, background)).toBeGreaterThanOrEqual(4.5)
+      }
+    }
+    expect(contrast(palette.accent.ink, palette.accent.solid)).toBeGreaterThanOrEqual(4.5)
+  })
+})