fix(calendar): restore GSAP fly-rect + fly-label animation in useCalendar composable

The refactoring in a4d8d81 moved calendar logic into useCalendar.ts but
used the old CSS-transform animation code instead of the GSAP-based
flying rect + flying label implementation. This restores:

- GSAP-based animateCalendarZoomIntoSource and animateCalendarFlipTransition
- Flying label that animates from card title → toolbar on zoom-in and back
- Clone-and-swap pattern with skeleton content in fly-rect (no text)
- Fly-rect/fly-label refs and setters now live in the composable
- isoWeekNumber() and weekNumber field on monthRows
- Sibling card titles and week numbers faded during zoom
- Removed old CSS-transform camera state and calendarSceneTransformStyle

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/app/components/workspace/CrmWorkspaceApp.vue

@@ -1,5 +1,4 @@
 <script setup lang="ts">
-import gsap from "gsap";
 import { computed, nextTick, onBeforeUnmount, onMounted, ref, watch, watchEffect } from "vue";
 import CrmAuthLoading from "~~/app/components/workspace/auth/CrmAuthLoading.vue";
 import CrmCalendarPanel from "~~/app/components/workspace/calendar/CrmCalendarPanel.vue";
@@ -159,14 +158,22 @@ const {
   calendarHoveredMonthIndex,
   calendarHoveredWeekStartKey,
   calendarHoveredDayKey,
+  calendarFlyRectRef,
+  calendarFlyVisible,
+  calendarFlyLabelRef,
+  calendarFlyLabelVisible,
+  calendarToolbarLabelRef,
   calendarZoomBusy,
+  calendarZoomPrimeToken,
   normalizedCalendarView,
   calendarZoomLevelIndex,
-  calendarSceneTransformStyle,
   calendarZoomOrder,
   setCalendarContentWrapRef,
   setCalendarContentScrollRef,
   setCalendarSceneRef,
+  setCalendarFlyRectRef,
+  setCalendarFlyLabelRef,
+  setCalendarToolbarLabelRef,
   setCalendarHoveredMonthIndex,
   setCalendarHoveredWeekStartKey,
   setCalendarHoveredDayKey,
@@ -210,13 +217,6 @@ const {
   refetchCalendar,
 } = calendar;
 
-// Fly rect for zoom animation (kept in orchestrator as template ref)
-const calendarFlyRectRef = ref<HTMLDivElement | null>(null);
-const calendarFlyVisible = ref(false);
-function setCalendarFlyRectRef(element: HTMLDivElement | null) {
-  calendarFlyRectRef.value = element;
-}
-
 // ---------------------------------------------------------------------------
 // 5. Deals
 // ---------------------------------------------------------------------------
@@ -1401,6 +1401,9 @@ onBeforeUnmount(() => {
               :normalized-calendar-view="normalizedCalendarView"
               :calendar-fly-visible="calendarFlyVisible"
               :set-calendar-fly-rect-ref="setCalendarFlyRectRef"
+              :calendar-fly-label-visible="calendarFlyLabelVisible"
+              :set-calendar-fly-label-ref="setCalendarFlyLabelRef"
+              :set-calendar-toolbar-label-ref="setCalendarToolbarLabelRef"
               :on-calendar-scene-mouse-leave="onCalendarSceneMouseLeave"
               :calendar-view="calendarView"
               :year-months="yearMonths"