feat(cibg): adopt the vendored CIBG Bestand-upload component

The upload suite now wraps the vendored CIBG file-upload classes instead of
hand-rolling from tokens:
- file-input becomes a .file-picker-drop-area with drag-and-drop + a real
  .btn-upload button and a visually-hidden, focusable <input>; renders an
  always-visible instruction (allowed types + max size) linked to the input via
  aria-describedby (pattern requirement).
- The file list is a semantic ul.file-list; single-upload is an
  li[app-single-upload] .file-container (native <li> child) with .actions
  (retry/.icon-remove) + progress; document-chip renders the .file block
  (status glyph, .file-name link, .file-meta size/status).
- Category validation moves ABOVE the block as .upload-validation > .feedback.
- Instruction text uses the default (not subtle) foreground for WCAG AA contrast
  on the grey drop-area.

DocumentUpload's public inputs/outputs are unchanged — both wizards keep working.
GREEN: lint, tokens, 181 tests, build, 137 axe stories.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-07-02 21:47:25 +02:00
parent 98fd7e4bcd
commit b5c5d30a65
8 changed files with 1032 additions and 715 deletions

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