사이트 메뉴 /bag/* 10개 페이지 구현 + E2E 테스트 timeout 보강

- Bag 컨트롤러 신규 (기본정보/발주입고/불출/재고/판매/판매현황/수불/통계/창/도움말)
- 사이트 공통 레이아웃 bag/layout/main.php 추출
- /bag/* 라우트 10개 등록 (Routes.php)
- bag-site.spec.js E2E 테스트 11개 추가
- Playwright timeout 30s→60s, waitForURL 15s→30s
- P4 지자체관리자 접근 테스트 3개로 분리

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/Views/bag/sales_stats.php

@@ -0,0 +1,34 @@
+<div class="space-y-1">
+  <form method="get" class="flex items-center gap-3 text-sm mb-3">
+    <label class="font-bold text-gray-700">조회기간</label>
+    <input type="date" name="start_date" value="<?= esc($startDate ?? '') ?>" class="border border-gray-300 rounded px-2 py-1 text-sm"/>
+    <span>~</span>
+    <input type="date" name="end_date" value="<?= esc($endDate ?? '') ?>" class="border border-gray-300 rounded px-2 py-1 text-sm"/>
+    <button type="submit" class="bg-btn-search text-white px-4 py-1.5 rounded-sm text-sm">조회</button>
+    <a href="<?= base_url('bag/sales-stats') ?>" class="text-sm text-gray-500 hover:text-gray-700">초기화</a>
+  </form>
+
+  <table class="data-table">
+    <thead><tr>
+      <th class="w-16">번호</th><th>판매소</th><th>판매일</th><th>봉투코드</th><th>봉투명</th><th>수량</th><th>단가</th><th>금액</th>
+    </tr></thead>
+    <tbody>
+    <?php if (! empty($result)): ?>
+      <?php foreach ($result as $i => $row): ?>
+      <tr>
+        <td class="text-center"><?= $i + 1 ?></td>
+        <td><?= esc($row->bs_shop_name ?? '') ?></td>
+        <td class="text-center"><?= esc($row->bs_sale_date ?? '') ?></td>
+        <td class="text-center"><?= esc($row->bs_bag_code ?? '') ?></td>
+        <td><?= esc($row->bs_bag_name ?? '') ?></td>
+        <td class="text-right"><?= number_format((int)($row->bs_qty ?? 0)) ?></td>
+        <td class="text-right"><?= number_format((float)($row->bs_unit_price ?? 0)) ?></td>
+        <td class="text-right"><?= number_format((float)($row->bs_amount ?? 0)) ?></td>
+      </tr>
+      <?php endforeach; ?>
+    <?php else: ?>
+      <tr><td colspan="8" class="text-center text-gray-400 py-4">판매 데이터가 없습니다.</td></tr>
+    <?php endif; ?>
+    </tbody>
+  </table>
+</div>