Execution Plan changes between good and bad query plans (Azure SQL Server)

Question

I've done my best to follow Why is my query suddenly slower than it was yesterday?

The ShowPlanXML parses fine with SQL Sentry Plan Explorer but not via brentozar.com/pastetheplan (not sure why) so I have pasted text files to my github instead below:

Here is the DDL and TSQL I am executing.

Here is the bad query plan (times out). PasteThePlan

Here is the good query plan. PasteThePlan

Any idea how I can more reliably get the engine to use a "good" query plan? Thank you!