feat: add transitions and micro-interactions across all views

- Page transitions with slide-up/fade on route changes (App.vue)
- NavRail sliding active indicator with spring-like easing
- List enter/leave/move animations on Entries, Projects, Clients, Timer
- Modal enter/leave transitions with scale+fade on all dialogs
- Dropdown transitions with overshoot on all select/picker components
- Button feedback (scale on hover/active), card hover lift effects
- Timer pulse on start, glow on stop, floating empty state icons
- Content fade-in on Dashboard, Reports, Calendar, Timesheet
- Tag chip enter/leave animations in AppTagInput
- Progress bar smooth width transitions
- Implementation plan document

src/views/Reports.vue

@@ -1,4 +1,5 @@
 <template>
+  <Transition name="fade" appear>
   <div class="p-6">
     <h1 class="text-[1.75rem] font-bold font-[family-name:var(--font-heading)] tracking-tight text-text-primary mb-6">Reports</h1>
 
@@ -198,6 +199,7 @@
       </div>
     </template>
   </div>
+  </Transition>
 </template>
 
 <script setup lang="ts">