fix: dashboard search UI, student screen UI, reset requests modal timezone

frontend/lib/ui/screens/dashboard/dashboard_screen.dart

@@ -555,27 +555,24 @@ class _DashboardScreenState extends ConsumerState<DashboardScreen> {
       child: Row(
         mainAxisAlignment: MainAxisAlignment.spaceBetween,
         children: [
-        if (!_searchFocusNode.hasFocus) ...[
+        if (!_searchFocusNode.hasFocus && _searchController.text.isEmpty) ...[
           const Flexible(
-            child: FittedBox(
-              fit: BoxFit.scaleDown,
-              alignment: Alignment.centerLeft,
-              child: Text(
-                'Dashboard Overview',
-                style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
-              ),
+            child: Text(
+              'Dashboard Overview',
+              style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
+              overflow: TextOverflow.ellipsis,
             ),
           ),
           const SizedBox(width: 16),
         ],
         Expanded(
+          key: const ValueKey('dashboard_search_expanded'),
           child: LayoutBuilder(
             builder: (context, constraints) {
-              final isSearching = _searchFocusNode.hasFocus;
+              final isSearching = _searchFocusNode.hasFocus || _searchController.text.isNotEmpty;
               return Align(
                 alignment: Alignment.centerRight,
                 child: AppSearchBar(
-                  key: const ValueKey('dashboard_search'),
                   controller: _searchController,
                   focusNode: _searchFocusNode,
                   collapsible: true,
@@ -593,7 +590,7 @@ class _DashboardScreenState extends ConsumerState<DashboardScreen> {
             },
           ),
         ),
-        if (!_searchFocusNode.hasFocus) ...[
+        if (!_searchFocusNode.hasFocus && _searchController.text.isEmpty) ...[
           const SizedBox(width: 16),
           Row(
             children: [

frontend/lib/ui/screens/students/students_screen.dart

@@ -590,7 +590,7 @@ class _StudentsScreenState extends ConsumerState<StudentsScreen> {
   Widget _buildHeaderControls(BuildContext context, StudentQueryParams query, WidgetRef ref, int activeCount) {
     return LayoutBuilder(builder: (_, c) {
       final isDesktop = c.maxWidth > 800;
-      final bool isSearchActive = _searchFocusNode.hasFocus;
+      final bool isSearchActive = _searchFocusNode.hasFocus || _searchController.text.isNotEmpty;
 
       return Row(
         mainAxisAlignment: MainAxisAlignment.spaceBetween,

frontend/lib/ui/shared/inputs/app_search_bar.dart

@@ -58,7 +58,7 @@ class _AppSearchBarState extends ConsumerState<AppSearchBar> {
     super.initState();
     _controller = widget.controller ?? TextEditingController();
     _focusNode = widget.focusNode ?? FocusNode();
-    _isExpanded = !widget.collapsible;
+    _isExpanded = !widget.collapsible || _controller.text.trim().isNotEmpty;
     _controller.addListener(_onTextChanged);
     _focusNode.addListener(_onFocusChanged);
   }
@@ -76,7 +76,7 @@ class _AppSearchBarState extends ConsumerState<AppSearchBar> {
   void _onFocusChanged() {
     if (mounted) {
       setState(() {
-        if (!_focusNode.hasFocus && widget.collapsible) {
+        if (!_focusNode.hasFocus && widget.collapsible && _controller.text.trim().isEmpty) {
           _isExpanded = false;
         }
       });
@@ -151,13 +151,15 @@ class _AppSearchBarState extends ConsumerState<AppSearchBar> {
               itemBuilder: (context, index) {
                 final term = history[index];
                 return InkWell(
-                  onTapDown: (_) {
+                  onTap: () {
                     _controller.text = term;
-                    _focusNode.unfocus();
                     if (widget.onSubmitted != null) {
                       widget.onSubmitted!(term);
                     }
                     ref.read(searchHistoryProvider.notifier).addSearch(term);
+                    Future.delayed(const Duration(milliseconds: 50), () {
+                      if (mounted) _focusNode.unfocus();
+                    });
                   },
                   child: Padding(
                     padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
@@ -214,18 +216,7 @@ class _AppSearchBarState extends ConsumerState<AppSearchBar> {
 
   @override
   Widget build(BuildContext context) {
-    if (!_isExpanded && widget.collapsible) {
-      if (_hasText) {
-        return IconButton(
-          onPressed: () {
-            _controller.clear();
-            widget.onChanged?.call('');
-            if (widget.onSubmitted != null) widget.onSubmitted!('');
-          },
-          icon: const Icon(Icons.close, size: 28, color: Colors.redAccent),
-          tooltip: 'Clear search',
-        );
-      }
+    if (!_isExpanded && widget.collapsible && !_hasText) {
       return IconButton(
         onPressed: () {
           setState(() => _isExpanded = true);

frontend/lib/ui/shared/modals/reset_requests_modal.dart

@@ -33,9 +33,10 @@ class _ResetRequestsModalState extends ConsumerState<ResetRequestsModal> {
 
   String _formatDate(String isoString) {
     try {
-      final utcTime = DateTime.parse(isoString).toUtc();
-      final phTime = utcTime.add(const Duration(hours: 8));
-      return DateFormat('MMM d, yyyy, hh:mm a').format(phTime);
+      DateTime dt = DateTime.parse(isoString);
+      if (!dt.isUtc) dt = dt.toUtc();
+      dt = dt.add(const Duration(hours: 8));
+      return DateFormat('MMM d, yyyy, hh:mm a').format(dt);
     } catch (_) {
       return isoString;
     }