FYST-1762 Fix query for existing intakes WITH direct file data; if intake with ssn exists, log in with that

[jenny-heath]

Link to pivotal/JIRA issue

• https://codeforamerica.atlassian.net/browse/FYST-1762

Is PM acceptance required? (delete one)

• Yes - don't merge until JIRA issue is accepted!

Reminder: merge main into this branch and get green tests before merging to main

What was done?

• the query to find an existing intake on verification code controller was accidentally returning intakes that do not have direct file data (we think the intention was the opposite)
• the sign in and redirect method was picking a random first intake to log in, but we should prioritize ones with an ssn (therefore, have done data import)

How to test?

• Added one unit test for each change that failed before the change and passes after. Still feel like the general testing approach is not robust enough but a client was just reported to have this issue so it seems like maybe we should get a fix out and then look at making more code improvements later.

[github-actions]

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[jnf]

new tests close the gap well!