[SPIKE] Define technical approach for ending a CHECK OUT session when operator closes browser or logs out of FOLIO

Split from CIRC-354.

As a library user, I want one email that includes all information and items from my library based on an action [listed below*] because I do not want to receive several emails or an email for each item.

In summary, notices are sent when a check out session ends, which includes:

• When FOLIO operator hits End Session on Check-out App Screen CIRC-354
• When FOLIO operator scans (or enters) a new Patron ID, which starts a new check out session CIRC-354
• When a check out session times out due to inactivity CIRC-354
• When FOLIO operator closes browser, which closes the existing session - See below
• When FOLIO operator logs out, which closes the existing session - See below

Scenario 1 - If operator closes browser

• FOLIO operator opens check out screen (and by doing that, also opens a new session)
• Then enters the barcode or scans Patron A's info
• Then scans Patron A's 10 items
• Then closes browser (notice is sent to Patron A with their 10 items)

Scenario 2 - If operator logs out

• FOLIO operator opens check out screen (and by doing that, also opens a new session)
• Then enters the barcode or scans Patron A's info
• Then scans Patron A's 10 items
• Then logs out of FOLIO (notice is sent to Patron A with their 10 items)