Ah!

I don't know of any premade app that'll do it.

I was thinking a basic database with fields "date", "issuesummary", "detail", "todo", etc, then a query like: SELECT date, issuesummary, todo FROM issues WHERE pk=837

And that would produce a plain but totally readable plain text report.

There're also ways to link SQL and LaTeX using python if you really want to impress.

Or do it in JSON and write something to display what should be displayed prettily, in which case you should also look into a nice form for input and slowly make it into a full-blown web app. would know all about that.
// @kdfrawg