More shiny fixes

[jeanconn]

Description

Fix V&V handling of missing fid in shiny (also works in ska3-flight). Also set code to assume USER to run the axafvv queries so the V&V report making can work as user other than 'jeanconn'. Set report writing test to work as USER as well and provide new warnings on Linux if the axafvv database access doesn't work.

Testing

• [x] Passes unit tests on Linux with ska3-flight or shiny
• [x] Functional testing does not apply as the code changes were to remove warnings and errors in unit tests outputs

Fixes #228, #179, #152

[taldcroft]

Does this pass tests as a user without sybase access?

[jeanconn]

Good question. I think the logic I put in for the sybase stuff is moving in the right direction, but I suppose I can try tests as kadi user on linux and see if I get the right skips and expected warns.

[jeanconn]

So stringifying the fid id seems to be the only thing needed to pass tests.

The changes to remove the "jeanconn" business look to me like they work to add new warnings if the tests are being run on head either in an environment that isn't set up for sybase or as a user who doesn't have axafvv database access. Passes test as 'kadi' user with and without SYBASE set, appropriately skips the report test but adds a warning. I think the warning is appropriate for my use cases but if we want to, say, pull the report-writing test into something separate to run as a "long" test we could do that. We could also ask for 'aca' user to have 'axafvv' read access and Javier is going to need it too.