parsing ATCA FITS header - no WCS grid rendered

[kswang1029]

Describe the bug

With v4.1-stable, some of the ATCA FITS images cannot have WCS grid rendered properly (missing) at the frontend.

The attached image shows the headers as displayed in v3 (left) and v4.1 (right) respectively.

The key difference is CTYPE3
v3
CTYPE3 = VELO-HEL
BUNIT = JY/BEAM
v4.1
CTYPE3 = VELO
BUNIT = Jy/beam

With ds9 we see
CTYPE3 = 'VELO-HEL'
BUNIT = 'JY/BEAM '

With some other ATCA FITS images, it works just fine (ex https://drive.google.com/file/d/1ynmyPlgEJolb_1D8m5tWNapXIGMwmUHO/view?usp=sharing)

To Reproduce
Steps to reproduce the behavior:

1. download the test image here: https://drive.google.com/file/d/1MrseMvR3j9YVeLk_4bwCmDjvIaPHUtye/view?usp=sharing
2. load it and we will see missing WCS grid.
3. try to generate a moment image but we will see errors in the browser's console.

Expected behavior
WCS grid should be rendered and moment image can be generated.

Platform info (please complete the following information):

• OS [e.g. macOS Monterey]: macOS Ventura
• Browser [e.g. chrome, safari, electron app]: v4.1 electron app
• Browser version [e.g. 22]:
• Backend branch [e.g. dev, v3b2 release]: v4.1, dev
• Frontend branch [e.g. dev, v3b2 release]: v4.1 dev

[TienHao]

I found both ATCA images are inconsistent between the OpenFileAck and the fits files headers in CTYPE3. There might be a change of file info parsing from the backend causing this problem.

For the WCS rendering failed ATCA image(link):
The headerEntries of OpenFileAck from the backend shows CTYPE3 = 'VELO'.
But the header from the fits file shows CTYPE3 = 'VELO-HEL'

For the WCS rendering succeeded one(link):
The headerEntries of OpenFileAck from the backend shows CTYPE3 = 'VELO' just like the failed one.
But the header from the fits file shows CTYPE3 = 'VELO-LSR'

I am not sure why it works fine for the second image, but the missing of chars is spotted.

[kswang1029]

Refer to CARTAvis/carta-backend#1375 for the issue.
This is going to be fixed via CARTAvis/carta-backend#1376.