feat(mui): consistent staggered page entrance across all 43 route pages

Adopt the PageEnter wrapper as every page's outermost render element and remove the ad-hoc per-page entrance motion.div wrappers. Every page now enters the same way — all top-level sections rise+fade in, staggered — so nothing appears instantly and the motion is identical app-wide. Presentation-only: no data/logic/hooks/invalidate/permissions touched. Embedded sub-tabs (CompanySettings, ReceivedInvoices), Login (auth shell) and the dev UiKit are intentionally excluded. Gates: tsc -b --noEmit=0, build=0, vitest 152/152.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/admin/pages/LeaveRequests.tsx

@@ -2,7 +2,6 @@ import { useState } from "react";
 import { useQuery } from "@tanstack/react-query";
 import { useAlert } from "../context/AlertContext";
 import { useAuth } from "../context/AuthContext";
-import { motion } from "framer-motion";
 import Box from "@mui/material/Box";
 import Forbidden from "../components/Forbidden";
 import { formatDate, formatDatetime } from "../utils/attendanceHelpers";
@@ -15,6 +14,7 @@ import {
   ConfirmDialog,
   StatusChip,
   PageHeader,
+  PageEnter,
   EmptyState,
   LoadingState,
   type DataColumn,
@@ -237,37 +237,25 @@ export default function LeaveRequests() {
   ];
 
   return (
-    <Box>
-      <motion.div
-        initial={{ opacity: 0, y: 12 }}
-        animate={{ opacity: 1, y: 0 }}
-        transition={{ duration: 0.25 }}
-      >
-        <PageHeader
-          title="Moje žádosti"
-          subtitle="Přehled žádostí o nepřítomnost"
-        />
-      </motion.div>
+    <PageEnter>
+      <PageHeader
+        title="Moje žádosti"
+        subtitle="Přehled žádostí o nepřítomnost"
+      />
 
-      <motion.div
-        initial={{ opacity: 0, y: 12 }}
-        animate={{ opacity: 1, y: 0 }}
-        transition={{ duration: 0.25, delay: 0.06 }}
-      >
-        <Card>
-          <DataTable<LeaveRequest>
-            columns={columns}
-            rows={requests}
-            rowKey={(req) => req.id}
-            empty={
-              <EmptyState
-                title="Zatím nemáte žádné žádosti"
-                description="Novou žádost můžete podat na stránce Docházka"
-              />
-            }
-          />
-        </Card>
-      </motion.div>
+      <Card>
+        <DataTable<LeaveRequest>
+          columns={columns}
+          rows={requests}
+          rowKey={(req) => req.id}
+          empty={
+            <EmptyState
+              title="Zatím nemáte žádné žádosti"
+              description="Novou žádost můžete podat na stránce Docházka"
+            />
+          }
+        />
+      </Card>
 
       <ConfirmDialog
         isOpen={cancelModal.open}
@@ -278,6 +266,6 @@ export default function LeaveRequests() {
         confirmText="Zrušit žádost"
         loading={cancelMutation.isPending}
       />
-    </Box>
+    </PageEnter>
   );
 }