- Season filter: add a "Full year" select-all row above the four seasons (checked at
12 months, clears to none, indeterminate when partial). One shared change in
seasonFilterDropdown/applySeasonMonthChange/syncSeasonChecks covers both pages; the
summary already reads "All year" at 12.
- Metric selector rides the filter sheet on phones: initFilterSheet gains a sheetOnly
option that relocates given controls into the sheet at the 640px breakpoint and
restores them inline on desktop (matchMedia; reparenting keeps listeners). Compare
passes its "Distribution by" control, calendar its "Color the calendar by" block.
- Compare comfort/tolerance slider moved out of the params panel into a standalone
full-width card above the results, so it's always visible instead of buried in the
mobile pill sheet. The params sheet now holds basis + season + date range.
Frontend-only; no backend or payload change.
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