Add more off-chain code duplication examples from existing PABs. Include problems with querying coin-selection, tests, retrying and errors.

[0pdd]

The puzzle 3-b2217e99 from #3 has to be resolved:

cem-script/docs/goals_and_soa.md

Lines 200 to 201 in 5906b34

	@todo #3: Add more off-chain code duplication examples from existing PABs.
	Include problems with querying coin-selection, tests, retrying and errors.

The puzzle was created by @uhbif19 on 28-Feb-24.

role: DEV.

If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about PDD and about me.