Менеджер закрепления областей XLSX

# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/xlsx-freeze-pane-manager' \
  -H 'Content-Type: application/json' \
  -d '{"filename":"workbookFile.ext","contentType":"application/octet-stream","size":12345}'

# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
  --data-binary @/path/to/file.ext

# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/ru/api/tools/xlsx-freeze-pane-manager' \
  -F 'workbookFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
  -F 'sheetNames=Sheet1,Sheet2 (blank = all sheets)' \
  -F 'freezeRows=1' \
  -F 'freezeColumns=0' \
  -F 'autoDetectFirstColumn=true' \
  -F 'minColumnsForAutoFreeze=8' \
  -F 'rowGroupsJson=[
  {
    "from": 2,
    "to": 15,
    "level": 1
  },
  {
    "from": 16,
    "to": 28,
    "level": 1
  }
]' \
  -F 'columnGroupsJson=[
  {
    "from": 3,
    "to": 8,
    "level": 1
  }
]' \
  -F 'collapseGroups=false' \
  -F 'summaryBelow=true' \
  -F 'summaryRight=true'