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/pages/manual-treatment/manual-treatment.wxss

@@ -0,0 +1,125 @@
+.nav-back {
+  position: absolute;
+  left: 32rpx;
+  font-size: 30rpx;
+  color: #ffffff;
+}
+
+.section-title {
+  font-size: 28rpx;
+  margin-top: 40rpx;
+}
+
+/* care function cards */
+.func-grid {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 20rpx;
+}
+
+.func-card {
+  width: calc(50% - 10rpx);
+  box-sizing: border-box;
+  padding: 28rpx 24rpx;
+  background: #ffffff;
+  border: 4rpx solid #e5e5e5;
+  border-radius: 24rpx;
+}
+
+.func-card.active {
+  background: #fdf2f8;
+}
+
+.func-dot {
+  width: 40rpx;
+  height: 40rpx;
+  border-radius: 50%;
+  margin-bottom: 16rpx;
+}
+
+.func-name {
+  font-size: 30rpx;
+  font-weight: 600;
+  color: #333333;
+  margin-bottom: 6rpx;
+}
+
+.func-wl {
+  font-size: 24rpx;
+  margin-bottom: 10rpx;
+}
+
+.func-benefit {
+  font-size: 22rpx;
+  color: #999999;
+  line-height: 1.5;
+}
+
+/* region checkbox grid */
+.region-grid {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 20rpx;
+  justify-content: center;
+}
+
+.region-chip {
+  min-width: 140rpx;
+  padding: 20rpx 0;
+  text-align: center;
+  border: 4rpx solid #e5e5e5;
+  border-radius: 16rpx;
+  font-size: 26rpx;
+  color: #999999;
+  flex: 1 1 26%;
+}
+
+.region-chip.active {
+  border-color: #E6508C;
+  background: rgba(230, 80, 140, 0.12);
+  color: #E6508C;
+}
+
+/* duration segmented control */
+.segmented {
+  display: flex;
+  gap: 20rpx;
+}
+
+.segment {
+  flex: 1;
+  padding: 24rpx 0;
+  text-align: center;
+  border: 4rpx solid #e5e5e5;
+  border-radius: 16rpx;
+  font-size: 28rpx;
+  color: #666666;
+}
+
+.segment.active {
+  border-color: #E6508C;
+  background: #fdf2f8;
+  color: #E6508C;
+  font-weight: 600;
+}
+
+.safety-tip {
+  margin: 32rpx 0 24rpx;
+  padding: 20rpx 24rpx;
+  background: #fff7e6;
+  border-radius: 16rpx;
+  font-size: 24rpx;
+  color: #ad6800;
+  line-height: 1.6;
+}
+
+.error-text {
+  text-align: center;
+  color: #ff4d4f;
+  font-size: 26rpx;
+  margin-top: 16rpx;
+}
+
+.btn-primary::after {
+  border: none;
+}