improvement(wrapped-ui): 优化年度总结可视化表现并适配主题

- 热力图支持按主题着色（Game Boy/DOS/VHS），并补充对应主题样式

- 字数键盘引入 10 级磨损系统：磨损/标注按等级平滑变化，并中文化提示

- 作息卡补充基于热力图的个性化叙事文案

frontend/utils/wrapped/heatmap.js

@@ -38,6 +38,41 @@ export const heatColor = (value, max) => {
   return `hsl(${hue.toFixed(1)} ${sat}% ${light.toFixed(1)}%)`
 }
 
+// Theme-aware heat color function
+export const themedHeatColor = (value, max, theme) => {
+  const v = Number(value) || 0
+  const m = Number(max) || 0
+  const t = (v > 0 && m > 0) ? clamp01(Math.sqrt(v / m)) : 0
+
+  switch (theme) {
+    case 'gameboy': {
+      // Game Boy 4-color palette: #0f380f, #306230, #8bac0f, #9bbc0f
+      if (t === 0) return '#9bbc0f'
+      if (t < 0.33) return '#8bac0f'
+      if (t < 0.66) return '#306230'
+      return '#0f380f'
+    }
+    case 'dos': {
+      // DOS green phosphor: from dark to bright green
+      if (t === 0) return 'rgba(51, 255, 51, 0.1)'
+      const light = 20 + 60 * t
+      return `hsl(120 100% ${light.toFixed(1)}%)`
+    }
+    case 'vhs': {
+      // VHS: from dark blue to pink/magenta
+      if (t === 0) return 'rgba(15, 52, 96, 0.3)'
+      // Interpolate from #0f3460 (dark blue) to #e94560 (pink)
+      const r = Math.round(15 + (233 - 15) * t)
+      const g = Math.round(52 + (69 - 52) * t)
+      const b = Math.round(96 + (96 - 96) * t)
+      return `rgb(${r}, ${g}, ${b})`
+    }
+    default:
+      // Modern (off) - use original heatColor
+      return heatColor(value, max)
+  }
+}
+
 export const formatHourRange = (hour) => {
   const h = Number(hour)
   if (!Number.isFinite(h)) return ''