Connection to IDR code examples

[pwalczysko]

1. BlitzGateway: Although we have https://idr.openmicroscopy.org/about/api.html, the repeated question is how to use the BlitzGateway API to connect to IDR.
   On https://idr.openmicroscopy.org/about/api.html only the web-way to connect is highlighted, and the BlitzGateway is not mentioned explicitly, which leads the user to the wrong conclusion that BlitzGateway connection is not possible. For that ,we could list an example from https://github.com/ome/EMBL-EBI-imaging-course-04-2025/blob/main/ReadingData_fromIDR.ipynb, namely

from omero.gateway import BlitzGateway
HOST = 'ws://idr.openmicroscopy.org/omero-ws'
conn = BlitzGateway('public', 'public',
                    host=HOST, secure=True)
print(conn.connect())
conn.c.enableKeepAlive(60)

2. (possibly) idr-py: As a further point, the connection using idr-py https://github.com/IDR/idr-py could be listed. The thing to think through here is whether idr-py is stable and maintained/tested enough for this.

cc @jburel