d819fc09f0
summary_ru_v1.json: the morning plan, the ranked task list, and the habit
sentences read back out of behaviour records. Own schema_version.
The empty cases are the point. "I have not seen enough yet" and "there is
nothing there" are different claims about his life, and the habit entries
keep the first — three days of taps produce the same "обычно ты ..." as a
year of them. plan_rest_empty stays separate from plan_day_empty for the
same reason: a day that is over was not an empty day.
Count forms stay in Go. день/дня/дней and задача/задачи/задач are
morphology, and they arrive here through {word}. Loader in the next commit.