修复分辨率

frontend/src/components/CustomModelModal.vue

@@ -6,9 +6,9 @@ import SelectMenu from './SelectMenu.vue'
 
 const emit = defineEmits(['close', 'saved'])
 
-// 14 ratios — the union of what our models actually support; kept in sync with
-// the backend guessRatio() and the docs 对照表.
-const RATIO_OPTS = ['1:1', '5:4', '4:3', '3:2', '16:9', '2:1', '21:9', '3:1', '4:5', '3:4', '2:3', '9:16', '9:21', '1:3']
+// 13 ratios — the union of what our models actually support; kept in sync with
+// the backend guessRatio() and the docs 对照表. 9:21 removed (no image provider accepts it).
+const RATIO_OPTS = ['1:1', '5:4', '4:3', '3:2', '16:9', '2:1', '21:9', '3:1', '4:5', '3:4', '2:3', '9:16', '1:3']
 const IMG_RES = ['1K', '2K', '4K']
 const VID_RES = ['720p', '1080p', '2K', '4K']
 const ALL_RES = ['1K', '2K', '4K', '720p', '1080p']

frontend/src/views/DocsView.vue

@@ -74,7 +74,6 @@ const sizeTable = [
   { ratio: '3:4 · 竖',   k1: '768x1024',  k2: '1536x2048', k4: '3072x4096' },
   { ratio: '2:3 · 竖',   k1: '800x1200',  k2: '1600x2400', k4: '2400x3600' },
   { ratio: '9:16 · 竖',  k1: '720x1280',  k2: '1152x2048', k4: '2304x4096' },
-  { ratio: '9:21 · 竖超宽', k1: '720x1680', k2: '1080x2520', k4: '2160x5040' },
   { ratio: '1:3 · 竖',   k1: '512x1536',  k2: '768x2304',  k4: '1280x3840' },
 ]