feat: 扫描报告页+手动选波长护理+光疗功效介绍页+诊断框架(占位阈值)

- services/diagnosis.js: 诊断流水线框架,阈值/PD映射为占位待标定,支持单波长降级
- auto-scan: 扫描完成改为出报告让用户选择护理(替代原自动开始治疗)
- 新增 scan-report/manual-treatment/light-info 三页,全部接入 i18n
- api.js: 新增 report/diagnosis-config 接口(对接后端契约)

miniprogram/i18n/locales/manual.js

@@ -1,6 +1,42 @@
 // Strings for the manual treatment (direct wavelength/function select) page
 // (pages/manual-treatment). Owned by the manual-mode feature. Keep zh/en in sync.
 module.exports = {
-  zh: {},
-  en: {}
+  zh: {
+    navTitle: '手动护理',
+    navSubtitle: '直接选择护理功能，快速开始',
+    functionTitle: '选择护理功能',
+    functions: {
+      rejuvenate: { name: '嫩肤焕亮', benefit: '红光温和促进胶原，改善暗沉' },
+      acne: { name: '净痘控油', benefit: '紫光清洁抑菌，平衡油脂' },
+      eventone: { name: '匀净提亮', benefit: '黄光舒缓肌肤，提亮肤色' },
+      revitalize: { name: '深层焕活', benefit: '红外深层导入，焕活紧致' }
+    },
+    regionTitle: '选择区域',
+    durationTitle: '选择时长',
+    durationUnit: '{min} 分钟',
+    safetyTip: '单次护理最长 10 分钟，亮度已设为护理中档，请佩戴护目镜',
+    start: '开始护理',
+    starting: '启动中...',
+    noRegionSelected: '请至少选择一个区域',
+    startFailed: '启动失败'
+  },
+  en: {
+    navTitle: 'Manual Care',
+    navSubtitle: 'Pick a care function and start right away',
+    functionTitle: 'Select Care Function',
+    functions: {
+      rejuvenate: { name: 'Rejuvenate & Brighten', benefit: 'Red light boosts collagen, eases dullness' },
+      acne: { name: 'Clear & Oil Control', benefit: 'UV light cleanses and balances oil' },
+      eventone: { name: 'Even & Brighten', benefit: 'Yellow light soothes and brightens tone' },
+      revitalize: { name: 'Deep Revitalize', benefit: 'Infrared penetrates deep to firm skin' }
+    },
+    regionTitle: 'Select Regions',
+    durationTitle: 'Select Duration',
+    durationUnit: '{min} min',
+    safetyTip: 'Sessions last up to 10 min at a safe medium brightness. Wear eye protection.',
+    start: 'Start Care',
+    starting: 'Starting...',
+    noRegionSelected: 'Please select at least one region',
+    startFailed: 'Failed to start'
+  }
 }