design overhaul + expenses page

- Stripe-style theme: single indigo (#635BFF) brand, 6px radius,
  Inter scale; rewritten themePrimitives + MUI customizations
  (solid primary, near-black secondary, severity-aware Alert)
- Sticky Header (brand-left nav, theme toggle, mobile drawer),
  inline Footer, route fade-in, per-route document.title
- Home hero + feature cards (dead /dashboard,/reports links replaced)
- Split-panel AuthPage with validation and password visibility
- Data pages: PageHeader/EmptyState, breadcrumbed Fetch Request
  pages, admin table polish (numeric alignment, row-hover actions,
  skeletons, empty states), single-accent admin SideMenu
- Global ToastProvider wired into app shell
- New /expenses page: month-grouped feed, single-open accordion
  with inline detail (account, tags, amount, timestamps)

src/shared-theme/customizations/feedback.tsx

@@ -1,21 +1,14 @@
 import { Theme, alpha, Components } from '@mui/material/styles';
-import { gray, orange } from '../themePrimitives';
+import { gray } from '../themePrimitives';
 
 /* eslint-disable import/prefer-default-export */
 export const feedbackCustomizations: Components<Theme> = {
   MuiAlert: {
     styleOverrides: {
       root: ({ theme }) => ({
-        borderRadius: 10,
-        backgroundColor: orange[100],
-        color: (theme.vars || theme).palette.text.primary,
-        border: `1px solid ${alpha(orange[300], 0.5)}`,
-        '& .MuiAlert-icon': {
-          color: orange[500],
-        },
+        borderRadius: (theme.vars || theme).shape.borderRadius,
         ...theme.applyStyles('dark', {
-          backgroundColor: alpha(orange[900], 0.35),
-          border: `1px solid ${alpha(orange[800], 0.3)}`,
+          backgroundColor: alpha((theme.vars || theme).palette.background.paper, 0.6),
         }),
       }),
     },
@@ -24,7 +17,7 @@ export const feedbackCustomizations: Components<Theme> = {
     styleOverrides: {
       root: ({ theme }) => ({
         '& .MuiDialog-paper': {
-          borderRadius: '10px',
+          borderRadius: (theme.vars || theme).shape.borderRadius,
           border: '1px solid',
           borderColor: (theme.vars || theme).palette.divider,
         },