docs: add stats dashboard feedback pass implementation plan

Task-by-task TDD plan for the seven items in the matching design
spec, organized as eleven commits in a single PR (365d backend,
server allow-list, frontend selector, vocabulary column,
Anki-deleted card filter, library episode delete, collapsible
library groups, session grouping helper, sessions tab rollup,
chart clarity pass, changelog fragment).
This commit is contained in:
2026-04-09 00:28:41 -07:00
parent 82d58a57c6
commit 8874e2e1c6

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