Shorten state in crash reports

[zuiderkwast]

Using the gen_server callback format_status/1, rewrite the state used for crash dumps in the following ways:

1. Convert from record to map, so keys are readable
2. Replace the huge binary slot map with a list of ranges

Before:

=ERROR REPORT==== 20-Mar-2026::14:38:51.760125 ===
** Generic server <0.962.0> terminating 
** Last message in was {'EXIT',<0.934.0>,crash}
** When Server state == {st,ok,
                            <<1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
                              1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
                              (many lines like this)
                            ...

After:

=ERROR REPORT==== 20-Mar-2026::14:38:51.760125 ===
** Generic server <0.962.0> terminating 
** Last message in was {'EXIT',<0.934.0>,crash}
** When Server state == #{pending => #{},
                          slots =>
                              [{{0,5460},1},
                               {{5461,10922},2},
                               {{10923,16383},3}],
                          ...

[zuiderkwast]

This failed test shows the new crash report: https://github.com/zuiderkwast/ered/actions/runs/23345634795/job/67910132639#step:5:118

(The test case was flaky before and not affected by this PR.)

[bjosv]

Very cool, looks a lot better.

[bjosv]

This just affects OTP25+ I guess, but thats fine.
format_status(Status) (since OTP 25.0) (optional)

[zuiderkwast]

Yeah, it will just be ignored on OTP < 25.

[WilliamVoong]

LGTM