Add the assignment data set (50 accounts), the logo and vs art, the
constants module, and the pure functions get_random_account,
pick_pair, format_data and check_answer, all with Doxygen comments.
pick_pair never returns the same account twice; check_answer accepts
either choice on a tie. Cover them with pytest tests (22 passing).
The art is built from concatenated raw lines so the backslashes survive
and Doxygen does not read the backticks as markup.
Accept MIL-002 after review RC-005 and add it to the Traceability
Matrix.
Task: MIL-002#1
Task: MIL-002#2
Task: MIL-002#3
Task: MIL-002#4
Task: MIL-002#5
Task: MIL-002#6
Closes#6Closes#7Closes#8Closes#9Closes#10Closes#11
