fix: remove duplicate showToast declaration causing JavaScript error

Root cause: admin_pricing.html declared 'const showToast' while base.html
already defined 'function showToast', causing SyntaxError that prevented
all JavaScript from executing on the admin pricing page.

Changes:
- Removed duplicate showToast declaration from admin_pricing.html (lines 206-210)
- Removed debug logging added in previous commit
- Kept immediate function calls in base.html to ensure early initialization

This fixes the issue where username and "Администратор цен" link
disappeared when navigating to /admin/pricing.

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

web/templates/admin_pricing.html

@@ -203,12 +203,6 @@
 </div>
 
 <script>
-// Fallback showToast function for cases where base.html isn't loaded properly
-const showToast = window.showToast || function(msg, type) {
-    // Simple fallback: just alert the message
-    alert(`${type ? type + ': ' : ''}${msg}`);
-};
-
 let currentTab = 'alerts';
 let currentPage = 1;
 let totalPages = 1;

web/templates/base.html

@@ -159,21 +159,17 @@
         }
 
         async function checkDbStatus() {
-            console.log('[DEBUG] checkDbStatus called');
             try {
                 const resp = await fetch('/api/db-status');
                 const data = await resp.json();
-                console.log('[DEBUG] checkDbStatus response:', data);
                 const statusEl = document.getElementById('db-status');
                 const countsEl = document.getElementById('db-counts');
                 const userEl = document.getElementById('db-user');
-                console.log('[DEBUG] userEl:', userEl);
 
                 if (data.connected) {
                     statusEl.innerHTML = '<span class="text-green-400">БД: подключено</span>';
                     if (data.db_user) {
                         userEl.innerHTML = '<span class="text-gray-500">@</span>' + data.db_user;
-                        console.log('[DEBUG] username set to:', data.db_user);
                     }
                 } else {
                     statusEl.innerHTML = '<span class="text-red-400">БД: ошибка - ' + data.error + '</span>';
@@ -181,27 +177,20 @@
 
                 countsEl.textContent = 'lot: ' + data.lot_count + ' | lot_log: ' + data.lot_log_count + ' | metadata: ' + data.metadata_count;
             } catch(e) {
-                console.error('[DEBUG] checkDbStatus error:', e);
                 document.getElementById('db-status').innerHTML = '<span class="text-red-400">БД: нет связи</span>';
             }
         }
 
         async function checkWritePermission() {
-            console.log('[DEBUG] checkWritePermission called');
             try {
                 const resp = await fetch('/api/pricelists/can-write');
                 const data = await resp.json();
-                console.log('[DEBUG] checkWritePermission response:', data);
                 if (data.can_write) {
                     const link = document.getElementById('admin-pricing-link');
-                    console.log('[DEBUG] admin-pricing-link element:', link);
+                    if (link) link.classList.remove('hidden');
-                    if (link) {
-                        link.classList.remove('hidden');
-                        console.log('[DEBUG] admin-pricing-link shown');
-                    }
                 }
             } catch(e) {
-                console.error('[DEBUG] checkWritePermission error:', e);
+                console.error('Failed to check write permission:', e);
             }
         }