I'm sorry, I missed the email updates.
I can't really help you with the code without writing it myself, and I don't have the time to do that (and I'm not a coder, so if I did, it probably would not be that good anyway)
You'll need to start with a proper specification too - "extract aging report" doesn't tell us enough. You'll need to define what format you want the data in, what issues you're trying to get, and so-on. Then you can decide on a structure for it (how you implement it in JIRA) and then select how to do it - add-on, scripting, extract, etc.
Some ideas might be:
...It's true that there are projects in Jira; but they are merely a way to cut off issues, to tell them apart from other sections of work and to apply rules that are specific to that team (the schemes)....
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