feat: polish micro-interactions with consistent motion system across the app

- add strong easing tokens (--ease-out-strong, --ease-in-out-strong, --ease-drawer)
- restore menu open/close animations (dropdown, context menu, combobox) using
  interruptible transitions via Base UI starting/ending styles
- dialogs: 200ms enter / 150ms exit; command palette opts out (keyboard-initiated)
- tooltips: 400ms initial delay with instant adjacent hovers via provider grouping
- buttons: scale press feedback, specific transition properties instead of transition-all
- tabs: sliding active-tab indicator via Base UI Tabs.Indicator
- sheet: iOS drawer curve with asymmetric enter/exit timing
- animate form validation messages and auth page entrance
- remove dead radix-idiom accordion classes in builder sidebars

.gitignore

@@ -51,6 +51,7 @@ temp
 .cursor
 .codegraph
 .superpowers
+.migration
 
 # Local Storage Data
 /data