feat(ui): full‑width ShadTable across app; fix rent dialog width; correct equipment pagination

- ShadTable: ensure full-width via LayoutBuilder+ConstrainedBox minWidth
- BaseListScreen: default data area padding = 0 for table edge-to-edge
- Vendor/Model/User/Company/Inventory/Zipcode: set columnSpanExtent per column
  and add final filler column to absorb remaining width; pin date/status/actions
  widths; ensure date text is single-line
- Equipment: unify card/border style; define fixed column widths + filler;
  increase checkbox column to 56px to avoid overflow
- Rent list: migrate to ShadTable.list with fixed widths + filler column
- Rent form dialog: prevent infinite width by bounding ShadProgress with
  SizedBox and remove Expanded from option rows; add safe selectedOptionBuilder
- Admin list: fix const with non-const argument in table column extents
- Services/Controller: remove hardcoded perPage=10; use BaseListController
  perPage; trust server meta (total/totalPages) in equipment pagination
- widgets/shad_table: ConstrainedBox(minWidth=viewport) so table stretches

Run: flutter analyze → 0 errors (warnings remain).

lib/screens/maintenance/components/maintenance_calendar.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
 import '../../../data/models/maintenance_dto.dart';
+import 'package:superport/screens/common/theme_shadcn.dart';
 
 class MaintenanceCalendar extends StatefulWidget {
   final List<MaintenanceDto> maintenances;
@@ -42,14 +43,8 @@ class _MaintenanceCalendarState extends State<MaintenanceCalendar> {
     return Container(
       padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
       decoration: BoxDecoration(
-        color: Colors.white,
-        boxShadow: [
-          BoxShadow(
-            color: Colors.grey.withValues(alpha: 0.1),
-            blurRadius: 4,
-            offset: const Offset(0, 2),
-          ),
-        ],
+        color: ShadcnTheme.card,
+        boxShadow: ShadcnTheme.shadowSm,
       ),
       child: Row(
         mainAxisAlignment: MainAxisAlignment.spaceBetween,
@@ -104,9 +99,11 @@ class _MaintenanceCalendarState extends State<MaintenanceCalendar> {
           padding: const EdgeInsets.symmetric(vertical: 12),
           child: Text(
             weekdays[i],
-            style: TextStyle(
-              fontWeight: FontWeight.bold,
-              color: i == 0 ? Colors.red : (i == 6 ? Colors.blue : Colors.black),
+            style: ShadcnTheme.labelMedium.copyWith(
+              fontWeight: FontWeight.w600,
+              color: i == 0
+                  ? ShadcnTheme.destructive
+                  : (i == 6 ? ShadcnTheme.accent : ShadcnTheme.foreground),
             ),
           ),
         ),
@@ -140,15 +137,15 @@ class _MaintenanceCalendarState extends State<MaintenanceCalendar> {
             margin: const EdgeInsets.all(2),
             decoration: BoxDecoration(
               color: isSelected
-                  ? Theme.of(context).primaryColor.withValues(alpha: 0.2)
+                  ? ShadcnTheme.primary.withValues(alpha: 0.12)
                   : isToday
-                      ? Colors.blue.withValues(alpha: 0.1)
+                      ? ShadcnTheme.accent.withValues(alpha: 0.08)
                       : Colors.transparent,
               border: Border.all(
                 color: isSelected
-                    ? Theme.of(context).primaryColor
+                    ? ShadcnTheme.primary
                     : isToday
-                        ? Colors.blue
+                        ? ShadcnTheme.accent
                         : Colors.transparent,
                 width: isSelected || isToday ? 2 : 1,
               ),
@@ -162,11 +159,13 @@ class _MaintenanceCalendarState extends State<MaintenanceCalendar> {
                   left: 8,
                   child: Text(
                     day.toString(),
-                    style: TextStyle(
-                      fontWeight: isToday ? FontWeight.bold : FontWeight.normal,
+                    style: ShadcnTheme.bodySmall.copyWith(
+                      fontWeight: isToday ? FontWeight.w700 : FontWeight.w400,
                       color: isWeekend
-                          ? (date.weekday == DateTime.sunday ? Colors.red : Colors.blue)
-                          : Colors.black,
+                          ? (date.weekday == DateTime.sunday
+                              ? ShadcnTheme.destructive
+                              : ShadcnTheme.accent)
+                          : ShadcnTheme.foreground,
                     ),
                   ),
                 ),
@@ -188,9 +187,9 @@ class _MaintenanceCalendarState extends State<MaintenanceCalendar> {
                           ),
                           child: Text(
                             '#${m.equipmentHistoryId}',
-                            style: const TextStyle(
-                              fontSize: 10,
-                              color: Colors.white,
+                            style: ShadcnTheme.caption.copyWith(
+                              color: ShadcnTheme.primaryForeground,
+                              fontWeight: FontWeight.w600,
                             ),
                             overflow: TextOverflow.ellipsis,
                           ),
@@ -207,14 +206,14 @@ class _MaintenanceCalendarState extends State<MaintenanceCalendar> {
                     child: Container(
                       padding: const EdgeInsets.all(2),
                       decoration: BoxDecoration(
-                        color: Colors.grey[600],
+                        color: ShadcnTheme.secondaryDark,
                         shape: BoxShape.circle,
                       ),
                       child: Text(
                         '+${dayMaintenances.length - 3}',
-                        style: const TextStyle(
-                          fontSize: 8,
-                          color: Colors.white,
+                        style: ShadcnTheme.caption.copyWith(
+                          fontSize: 9,
+                          color: ShadcnTheme.primaryForeground,
                         ),
                       ),
                     ),
@@ -276,24 +275,23 @@ class _MaintenanceCalendarState extends State<MaintenanceCalendar> {
     
     switch (status.toLowerCase()) {
       case 'overdue':
-        return Colors.red;
+        return ShadcnTheme.alertExpired;
       case 'scheduled':
       case 'upcoming':
-        // nextMaintenanceDate 필드가 없으므로 startedAt 기반으로 계산
         final daysUntil = maintenance.startedAt.difference(DateTime.now()).inDays;
         if (daysUntil <= 7) {
-          return Colors.orange;
+          return ShadcnTheme.alertWarning30;
         } else if (daysUntil <= 30) {
-          return Colors.yellow[700]!;
+          return ShadcnTheme.alertWarning60;
         }
-        return Colors.blue;
+        return ShadcnTheme.info;
       case 'inprogress':
       case 'ongoing':
-        return Colors.purple;
+        return ShadcnTheme.purple;
       case 'completed':
-        return Colors.green;
+        return ShadcnTheme.success;
       default:
-        return Colors.grey;
+        return ShadcnTheme.secondary;
     }
   }
-}
+}