Add waiting system application files

- Add main application files (main.py, models.py, schemas.py, etc.)
- Add routers for all features (waiting, attendance, members, etc.)
- Add HTML templates for admin and user interfaces
- Add migration scripts and utility files
- Add Docker configuration
- Add documentation files
- Add .gitignore to exclude database and cache files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

store_param_template.js

@@ -0,0 +1,29 @@
+// Common store parameter handling function
+// Add this to all pages that need store context
+
+async function checkUrlStoreParam() {
+    const urlParams = new URLSearchParams(window.location.search);
+    const storeParam = urlParams.get('store');
+
+    if (storeParam) {
+        try {
+            // 매장 코드로 매장 정보 조회
+            const response = await fetch(`/api/stores/code/${storeParam}`, {
+                headers: {
+                    'Authorization': `Bearer ${localStorage.getItem('access_token')}`
+                }
+            });
+            if (response.ok) {
+                const store = await response.json();
+                localStorage.setItem('selected_store_id', store.id);
+                localStorage.setItem('selected_store_name', store.name);
+                console.log(`URL 매장 파라미터 적용: ${store.name} (코드: ${storeParam})`);
+            } else {
+                console.error('매장 코드를 찾을 수 없습니다:', storeParam);
+                alert(`매장 코드 '${storeParam}'를 찾을 수 없습니다.`);
+            }
+        } catch (e) {
+            console.error('매장 정보 조회 실패:', e);
+        }
+    }
+}