✨ feat(calendar): integrate TagStrip into PillNavigation dropdown

- Add PillTagSelector component for tag selection in navigation
- Remove separate TagStrip bar (saves 70px vertical space)
- Add tag-selector support to PillNavigation element rendering
- Remove hasTagStrip prop from DateStrip/DateStripFab components
- Export PillTagSelector and types from shared-ui

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/shared-ui/src/index.ts

@@ -85,6 +85,7 @@ export {
 	PillNavigation,
 	PillDropdown,
 	PillTabGroup,
+	PillTagSelector,
 	PillTimeRangeSelector,
 	PillViewSwitcher,
 	PillToolbar,
@@ -104,6 +105,8 @@ export type {
 	PillNavigationProps,
 	PillTabOption,
 	PillTabGroupConfig,
+	PillTagItem,
+	PillTagSelectorConfig,
 	ExpandableToolbarProps,
 } from './navigation';