add subscriptions; change persistence file format to JSON (closes #901, #76, #113, #170, #242, #444, #503, #555, #566)

This commit is contained in:
Alex Shnitman
2026-04-01 14:18:18 +03:00
parent 84c6418f91
commit 483575d24a
20 changed files with 3168 additions and 744 deletions
+485 -474
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