feat: init fitness-coach (backend + miniprogram)

- backend: NestJS service with exercise/plan data
- miniprogram: WeChat mini program client
- exclude node_modules, dist, runtime data-store, local env

miniprogram/components/exercise-card/index.js

@@ -0,0 +1,14 @@
+Component({
+  properties: {
+    exercise: { type: Object, value: {} },
+    score: { type: Number, value: 0 },
+    reason: { type: String, value: '' },
+    compact: { type: Boolean, value: false }
+  },
+  methods: {
+    onTap() {
+      const ex = this.data.exercise || {};
+      this.triggerEvent('tap', { id: ex.id, exercise: ex });
+    }
+  }
+});

miniprogram/components/exercise-card/index.json

@@ -0,0 +1,4 @@
+{
+  "component": true,
+  "usingComponents": {}
+}

miniprogram/components/exercise-card/index.wxml

@@ -0,0 +1,21 @@
+<view class="ex-card {{compact ? 'ex-card--compact' : ''}}" bindtap="onTap">
+  <view class="ex-card__media">
+    <image
+      wx:if="{{exercise.gifUrl || exercise.image}}"
+      class="ex-card__img"
+      src="{{exercise.gifUrl || exercise.image}}"
+      mode="aspectFill"
+      lazy-load="true" />
+    <view wx:else class="ex-card__ph">🏋️</view>
+    <view wx:if="{{exercise.typeLabel}}" class="ex-card__type">{{exercise.typeLabel}}</view>
+    <view wx:if="{{score > 0}}" class="ex-card__score">匹配 {{score}}</view>
+  </view>
+  <view class="ex-card__body">
+    <view class="ex-card__name">{{exercise.name}}</view>
+    <view class="ex-card__chips">
+      <text wx:if="{{exercise.targetLabel}}" class="tag tag--gold">{{exercise.targetLabel}}</text>
+      <text wx:if="{{exercise.equipmentLabel}}" class="tag">{{exercise.equipmentLabel}}</text>
+    </view>
+    <view wx:if="{{reason}}" class="ex-card__reason">{{reason}}</view>
+  </view>
+</view>

miniprogram/components/exercise-card/index.wxss

@@ -0,0 +1,40 @@
+.ex-card {
+  background: var(--surface);
+  border-radius: var(--radius-sm);
+  overflow: hidden;
+  border: 1rpx solid var(--line);
+  width: 100%;
+}
+.ex-card__media {
+  position: relative;
+  width: 100%;
+  height: 200rpx;
+  background: var(--surface-2);
+}
+.ex-card--compact .ex-card__media { height: 160rpx; }
+.ex-card__img { width: 100%; height: 100%; display: block; }
+.ex-card__ph {
+  width: 100%; height: 100%;
+  display: flex; align-items: center; justify-content: center;
+  font-size: 64rpx;
+}
+.ex-card__type {
+  position: absolute; left: 12rpx; top: 12rpx;
+  font-size: 20rpx; color: var(--text-2);
+  background: rgba(0,0,0,0.45); padding: 4rpx 14rpx; border-radius: 999rpx;
+}
+.ex-card__score {
+  position: absolute; right: 12rpx; top: 12rpx;
+  font-size: 20rpx; color: #0E1110; font-weight: 700;
+  background: var(--gold); padding: 4rpx 14rpx; border-radius: 999rpx;
+}
+.ex-card__body { padding: 16rpx 18rpx 20rpx; }
+.ex-card__name {
+  font-size: 28rpx; font-weight: 600; color: var(--text);
+  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
+}
+.ex-card__chips { display: flex; gap: 10rpx; margin-top: 12rpx; flex-wrap: wrap; }
+.ex-card__reason {
+  margin-top: 12rpx; font-size: 22rpx; color: var(--text-3);
+  line-height: 1.45;
+}