fix(web): visual QA front-end items U4–U6, U13–U16 and copy list

- U4: form save failures toast the first problem and scroll/focus the first
  invalid field (policy draft, settings cards, resource drawers, subscription
  form) via lib/form-errors.
- U5: FormField keeps 8px between a hint and the next label.
- U6: file manager status bar keeps free space left-aligned, clear of the
  Agent button.
- U13: move/copy dialog stops "target is the source folder / inside the
  source" before requesting a preview (transferTargetProblem + tests).
- U14: account popover uses the solid float material.
- U15/U16: inbox tile hint shortened; TMDB assign dialog uses the shared
  Select and labelled fields (type, TMDB ID, note).
- Copy: "TMDB 已保存" spacing, API Key block no longer repeats the section
  title, whole-day intervals read "每 7 天", "最高级别:提示",
  "延后:已有计划在途", failed records show "未生成目标路径", upstream model
  column "默认模型".

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/components/workbench/release-detail-sheet.tsx

@@ -24,7 +24,7 @@ const DECISION_LABEL = {
   reject: { label: "不收录", tone: "destructive" },
   unknown_field: { label: "缺字段,待复核", tone: "warning" },
   skipped: { label: "被跳过", tone: "neutral" },
-  deferred: { label: "延后(单元在途)", tone: "warning" },
+  deferred: { label: "延后:已有计划在途", tone: "warning" },
 } as const;
 
 /** 本地库存 + 候选理由(来自作品详情:Slot / CandidateEvaluation),不从标题猜 */