Matt
8f42940c52
Builds the foundational primitives that subsequent waves depend on. None of these introduce new deps — date-fns, react-day-picker, and shadcn Calendar were already in the tree. - `<DatePicker>` and `<DateTimePicker>` in src/components/ui — desktop popover wrapping the existing shadcn Calendar (caption-dropdown nav so reps can jump months/years for the SkipAheadBanner backfill UX), mobile native input via useIsMobile. Drop-in for `<Input type=date>` / `<Input type=datetime-local>`. - `<FileInputButton>` in src/components/ui — styled Button + hidden input, replaces browser-default file picker UI. Most queued sweep sites already used the hidden-input + Button-trigger pattern; the primitive lands for any new caller plus consistent filename display + clear button. - ColumnPicker `hideAll()` footer item — symmetric to existing `showAll()`, with the same visibility gate. Lands platform-wide via the shared component. - Migrated highest-leverage call sites to the new primitives: * MilestoneAdvanceButton (backfill UX) * Reminder form (datetime-local → DateTimePicker) * Snooze dialog (datetime-local → DateTimePicker) * External-EOI upload dialog (date + file picker) * Payments section (received-on date) - Remaining 15+ date-input call sites parked for a follow-up sweep — several use react-hook-form `register` patterns that need careful migration to the new controlled-value contract. tsc clean. 1419/1419 vitest pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>