chiappa/sprint_planer_web @ v0.24.0

tükrözi: https://git.snix.ch/chiappa/sprint_planer_web.git

chiappa 1edc853c8e Docs: mark R01-N32/N33/N34 accepted-by-design		2 napja
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REVIEW_01.md	1edc853c8e Docs: mark R01-N32/N33/N34 accepted-by-design	2 napja
Tool_Sprint Planning.xlsx	e143cf7323 Add Sample Import source	3 napja
admin-manual.md	32d03fc5db Fix R01-N27: backgrounded session-file GC loop in entrypoint	2 napja