feat(aigc): add video save support and improve consent flow

- add support for saving both image and video AIGC generation results
- refactor ResultActions component to accept mediaType prop and use dynamic save button text
- remove AIGC consent dialog from ChatQuickAccess and implement it on AIGC home page
- add WeChat mini-program privacy authorization check before saving media
- create reusable AigcConsentDialog component with proper styling

src/pages-aigc/detail/detail.vue

@@ -6,8 +6,8 @@
       <template v-if="taskDetail">
         <ResultPreview v-if="result.cover" :result="result" />
         <ResultMeta :items="metaItems" />
-        <ResultActions :saving="isSaving" :share-ready="Boolean(shareKey)" :share-preparing="isPreparingShare"
-          @save="handleSave" @prepare-share="handlePrepareShare" />
+        <ResultActions :saving="isSaving" :media-type="result.mediaType" :share-ready="Boolean(shareKey)"
+          :share-preparing="isPreparingShare" @save="handleSave" @prepare-share="handlePrepareShare" />
 
         <view class="aigc-detail-text-actions">
           <view class="aigc-detail-text-action" @tap="handleRegenerate">再生成一版</view>
@@ -17,12 +17,15 @@
       </template>
     </view>
 
+    <Privacy :visible="privacyVisible" :contract-name="privacyContractName" @agree="handlePrivacyAgree"
+      @disagree="handlePrivacyDisagree" />
   </view>
 </template>
 
 <script setup>
 import { computed, ref } from "vue";
 import { onLoad, onShareAppMessage, onShow } from "@dcloudio/uni-app";
+import Privacy from "@/components/Privacy/index.vue";
 import AigcTopBar from "@/pages-aigc/components/AigcTopBar/index.vue";
 import { useCurrentCredit } from "@/pages-aigc/hooks/useCurrentCredit.js";
 import {
@@ -39,6 +42,9 @@ const taskDetail = ref(null);
 const isSaving = ref(false);
 const isPreparingShare = ref(false);
 const shareKey = ref("");
+const privacyVisible = ref(false);
+const privacyContractName = ref("隐私保护指引");
+const pendingSaveAfterPrivacy = ref(false);
 
 const GENERATOR_TYPE_TEXT = {
   0: "图片版",
@@ -220,7 +226,7 @@ const handleRecharge = () => {
   showPlaceholderToast("积分充值");
 };
 
-const downloadImage = (url) =>
+const downloadMedia = (url) =>
   new Promise((resolve, reject) => {
     if (!/^https?:\/\//i.test(url)) {
       resolve(url);
@@ -249,6 +255,46 @@ const saveImageToAlbum = (filePath) =>
     });
   });
 
+const saveVideoToAlbum = (filePath) =>
+  new Promise((resolve, reject) => {
+    uni.saveVideoToPhotosAlbum({
+      filePath,
+      success: resolve,
+      fail: reject,
+    });
+  });
+
+const ensureAlbumPermission = () =>
+  new Promise((resolve, reject) => {
+    // #ifdef MP-WEIXIN
+    uni.getSetting({
+      success: ({ authSetting = {} }) => {
+        const permission = authSetting["scope.writePhotosAlbum"];
+        if (permission === true) {
+          resolve();
+          return;
+        }
+
+        if (permission === false) {
+          reject({ errMsg: "scope.writePhotosAlbum permission denied" });
+          return;
+        }
+
+        uni.authorize({
+          scope: "scope.writePhotosAlbum",
+          success: resolve,
+          fail: reject,
+        });
+      },
+      fail: reject,
+    });
+    // #endif
+
+    // #ifndef MP-WEIXIN
+    resolve();
+    // #endif
+  });
+
 const isAlbumPermissionDenied = (error) => {
   const errorMessage = String(error?.errMsg || "").toLowerCase();
   return (
@@ -258,10 +304,11 @@ const isAlbumPermissionDenied = (error) => {
   );
 };
 
-const promptAlbumPermission = () => {
+const promptAlbumPermission = (mediaType) => {
+  const mediaName = mediaType === "video" ? "视频" : "图片";
   uni.showModal({
     title: "需要相册权限",
-    content: "请在设置中允许保存图片到相册。",
+    content: `请在设置中允许保存${mediaName}到相册。`,
     confirmText: "去设置",
     success: ({ confirm }) => {
       if (confirm) {
@@ -271,51 +318,104 @@ const promptAlbumPermission = () => {
   });
 };
 
-const handleSave = async () => {
+const saveResultMedia = async () => {
   if (isSaving.value) return;
 
-  if (result.value.mediaType !== "image") {
-    showPlaceholderToast("当前结果不是图片");
-    return;
-  }
-
-  if (!result.value.cover) {
-    showPlaceholderToast("暂无可保存的图片");
+  const mediaType = result.value.mediaType;
+  const isVideo = mediaType === "video";
+  const mediaName = isVideo ? "视频" : "图片";
+  const mediaUrl = isVideo ? result.value.videoResultUrl : result.value.imageResultUrl;
+  if (!mediaUrl) {
+    showPlaceholderToast(`暂无可保存的${mediaName}`);
     return;
   }
 
   isSaving.value = true;
-  uni.showLoading({
-    title: "保存中",
-    mask: true,
-  });
 
   let saveError = null;
+  let loadingVisible = false;
   try {
-    const filePath = await downloadImage(result.value.cover);
-    await saveImageToAlbum(filePath);
+    await ensureAlbumPermission();
+    uni.showLoading({
+      title: "保存中",
+      mask: true,
+    });
+    loadingVisible = true;
+
+    const filePath = await downloadMedia(mediaUrl);
+    if (isVideo) {
+      await saveVideoToAlbum(filePath);
+    } else {
+      await saveImageToAlbum(filePath);
+    }
   } catch (error) {
     saveError = error;
   } finally {
-    uni.hideLoading();
+    if (loadingVisible) {
+      uni.hideLoading();
+    }
     isSaving.value = false;
   }
 
   if (!saveError) {
     uni.showToast({
-      title: "已保存到相册",
+      title: `${mediaName}已保存`,
       icon: "success",
     });
     return;
   }
 
   if (isAlbumPermissionDenied(saveError)) {
-    promptAlbumPermission();
+    promptAlbumPermission(mediaType);
   } else {
-    showPlaceholderToast("保存图片失败");
+    showPlaceholderToast(`保存${mediaName}失败`);
   }
 };
 
+const handleSave = () => {
+  if (isSaving.value || pendingSaveAfterPrivacy.value) return;
+
+  // #ifdef MP-WEIXIN
+  pendingSaveAfterPrivacy.value = true;
+  wx.getPrivacySetting({
+    success: (res) => {
+      if (res?.needAuthorization) {
+        privacyContractName.value = res.privacyContractName || "隐私保护指引";
+        privacyVisible.value = true;
+        return;
+      }
+
+      pendingSaveAfterPrivacy.value = false;
+      saveResultMedia();
+    },
+    fail: (error) => {
+      pendingSaveAfterPrivacy.value = false;
+      console.warn("检查微信隐私授权失败", error);
+      showPlaceholderToast("隐私授权检查失败");
+    },
+  });
+  // #endif
+
+  // #ifndef MP-WEIXIN
+  saveResultMedia();
+  // #endif
+};
+
+const handlePrivacyAgree = () => {
+  const shouldSave = pendingSaveAfterPrivacy.value;
+  privacyVisible.value = false;
+  pendingSaveAfterPrivacy.value = false;
+
+  if (shouldSave) {
+    saveResultMedia();
+  }
+};
+
+const handlePrivacyDisagree = () => {
+  privacyVisible.value = false;
+  pendingSaveAfterPrivacy.value = false;
+};
+
 const handleRegenerate = () => {
   showPlaceholderToast("再生成一版");
 };