feat: add aigc record, video preview & custom recharge

- create useAigcRecordStore to centralize current AIGC generation record state
- add video media type support to ResultPreview component
- update RecordCard to only display view button for completed tasks
- implement custom recharge amount with input validation and 9999 max limit
- refactor detail page to load record from Pinia store instead of mock data
- clean up TemplateCarousel markup and remove unused badge styles
- fix minor formatting and code style issues

src/pages-aigc/home/components/TemplateCarousel/index.vue

@@ -5,38 +5,20 @@
         <text class="template-heading-title">选择模板</text>
         <text class="template-heading-subtitle">左右滑动预览效果</text>
       </view>
-      <text class="template-heading-badge">同源双版本</text>
     </view>
 
-    <scroll-view
-      class="template-rail"
-      scroll-x
-      show-scrollbar="false"
-      scroll-with-animation
-      :scroll-left="railScrollLeft"
-      @scroll="handleScroll"
-      @touchstart="handleTouchStart"
-      @touchend="handleTouchEnd"
-      @touchcancel="handleTouchEnd"
-    >
+    <scroll-view class="template-rail" scroll-x show-scrollbar="false" scroll-with-animation
+      :scroll-left="railScrollLeft" @scroll="handleScroll" @touchstart="handleTouchStart" @touchend="handleTouchEnd"
+      @touchcancel="handleTouchEnd">
       <view class="template-track">
-        <TemplateCard
-          v-for="(template, index) in templates"
-          :key="template.templateId || index"
-          :template="template"
-          :active="index === modelValue"
-          @select="handleSelect(template, index)"
-        />
+        <TemplateCard v-for="(template, index) in templates" :key="template.templateId || index" :template="template"
+          :active="index === modelValue" @select="handleSelect(template, index)" />
       </view>
     </scroll-view>
 
     <view class="template-dots">
-      <view
-        v-for="(template, index) in templates"
-        :key="`${template.templateId || index}-dot`"
-        class="template-dot"
-        :class="{ 'is-active': index === modelValue }"
-      />
+      <view v-for="(template, index) in templates" :key="`${template.templateId || index}-dot`" class="template-dot"
+        :class="{ 'is-active': index === modelValue }" />
     </view>
   </view>
 </template>