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/equipment/widgets/autocomplete_text_field.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:superport/screens/common/theme_shadcn.dart';
 
 /// 자동완성 텍스트 필드 위젯
 ///
@@ -136,16 +137,10 @@ class _AutocompleteTextFieldState extends State<AutocompleteTextField> {
             right: 0,
             child: Container(
               decoration: BoxDecoration(
-                color: Colors.white,
-                border: Border.all(color: Colors.grey.shade300),
+                color: ShadcnTheme.card,
+                border: Border.all(color: ShadcnTheme.border),
                 borderRadius: BorderRadius.circular(4),
-                boxShadow: [
-                  BoxShadow(
-                    color: Colors.grey.withValues(alpha: 0.3),
-                    blurRadius: 4,
-                    offset: const Offset(0, 2),
-                  ),
-                ],
+                boxShadow: ShadcnTheme.shadowSm,
               ),
               constraints: const BoxConstraints(maxHeight: 200),
               child: ListView.builder(