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feat(a2ui): add compact activity calendar heatmaps - #145
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Lancetnik
added this pull request to stack #131
October 10, 2026 17:19
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marklysze
approved these changes
Oct 11, 2026
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Why are these changes needed?
A Table's readable column minimum makes GitHub-like activity calendars too wide. Add
CalendarHeatmapas a validated Card/Screen primitive with small squares, weekdays in rows and weeks in columns. Positive daily counts set intensity; analysis, pause, missed, unknown and upcoming days remain distinct. Missing dates remain unknown, and multiple sessions must be aggregated into one dated entry.Support inclusive 1–366-day ranges, Monday/Sunday start, semantic cell sizes, locale labels, tooltips and a status legend. Literal contracts reject invalid dates/ranges, negative or fractional counts, unknown states and duplicate dates. Bound data is checked by the renderer and reports a contained error. Wide ranges scroll within the calendar frame. Preview diagnostics also report the inner CalendarHeatmap and Table scroll regions, so a contained scroll is visible even when the outer frame stays bounded.
Document the primitive in existing card-author resources and screens instructions. No tool is added; visual inspection uses the existing
screens/previewscript from #144.Related issue number
Compact activity calendar follow-up. Stacked on #144 in stack #131.
Checks
ruff check .,ruff format --check ., andpytest -m "not integration"locally and they pass.web/, I rebuilt and committed the SPA bundle (npm --prefix web run build).Validation: 2474 Python tests passed; mypy passed; 561 SPA tests passed; svelte-check reports no errors or warnings. API tests verify persisted calendars and namespaced bindings after restart. Model tests cover calendar placement, explicit/missing states, leap days, UTC year boundaries and invalid data. Live Chrome: 123 layout fixtures passed, including monthly/annual calendars at two frame widths, three cell sizes and English/Russian labels, with console and network checks. Desktop/narrow screenshots were also produced through screens' actual preview renderer.
AI assistance
Implementation and documentation were prepared with Codex assistance and reviewed against the actual diff, calendar cases and browser behavior.