Vendor mapping: wildcard ignore patterns, bulk CSV import, multi-lot qty

- Add glob pattern support (* and ?) for ignore rules stored in
  qt_vendor_partnumber_seen (is_pattern flag, migration 041)
- Pattern matching applied in stock/competitor import, partnumber book
  snapshot, and vendor mappings list (Go-side via NormalizeKey)
- BulkUpsertMappings: replace N+1 loop with two batch SQL upserts,
  validating all lots in a single query (~1500 queries → 3-4)
- CSV import: multi-lot per PN via repeated rows, optional qty column
- CSV export: updated column format vendor;partnumber;lot_name;qty;description;ignore;notes
- UI: ignore patterns section with add/delete, import progress feedback
- Update bible-local/vendor-mapping.md with new CSV format

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/static/js/vendor_mappings.js

@@ -690,7 +690,11 @@ async function importVendorMappingsCsv() {
     const fd = new FormData();
     fd.append('file', file);
     setVendorMappingsImportModalError('');
-    if (submitBtn) submitBtn.disabled = true;
+    if (submitBtn) {
+        submitBtn.disabled = true;
+        submitBtn.textContent = 'Импортирую…';
+    }
+    if (typeof showToast === 'function') showToast('Импорт начался…', 'info');
     try {
         const resp = await fetch('/api/admin/pricing/vendor-mappings/import-csv', {
             method: 'POST',
@@ -725,7 +729,10 @@ async function importVendorMappingsCsv() {
     } finally {
         input.value = '';
         renderVendorMappingsImportSelectedFile();
-        if (submitBtn) submitBtn.disabled = false;
+        if (submitBtn) {
+            submitBtn.disabled = false;
+            submitBtn.textContent = 'Импортировать';
+        }
     }
 }
 
@@ -891,4 +898,100 @@ document.addEventListener('DOMContentLoaded', () => {
     });
     loadPartnumberBooks();
     loadVendorMappings(1);
+    loadIgnorePatterns();
 });
+
+// ─── Ignore Patterns ──────────────────────────────────────────────────────────
+
+async function loadIgnorePatterns() {
+    const container = document.getElementById('ignore-patterns-list');
+    if (!container) return;
+    try {
+        const resp = await fetch('/api/admin/pricing/vendor-mappings/ignore-patterns');
+        if (!resp.ok) return;
+        const data = await resp.json();
+        const patterns = data.patterns || [];
+        if (patterns.length === 0) {
+            container.innerHTML = '<p class="text-gray-400 text-xs">Нет активных масок.</p>';
+            return;
+        }
+        container.innerHTML = patterns.map(p => `
+            <div class="flex items-center justify-between px-3 py-1.5 bg-gray-50 border rounded">
+                <div class="flex items-center gap-3">
+                    <span class="font-mono text-sm font-medium text-orange-700">${escapeHtml(p.pattern)}</span>
+                    ${p.ignored_by ? `<span class="text-xs text-gray-400">by ${escapeHtml(p.ignored_by)}</span>` : ''}
+                </div>
+                <button onclick="deleteIgnorePattern(${p.id}, ${JSON.stringify(p.pattern)})"
+                    class="text-xs text-red-500 hover:text-red-700 px-2 py-0.5 border border-red-200 rounded hover:bg-red-50">
+                    Удалить
+                </button>
+            </div>`).join('');
+    } catch (e) {
+        container.innerHTML = `<p class="text-red-500 text-xs">${e.message}</p>`;
+    }
+}
+
+function openIgnorePatternsAddModal() {
+    const modal = document.getElementById('ignore-pattern-modal');
+    const inp = document.getElementById('ip-pattern');
+    const err = document.getElementById('ignore-pattern-modal-error');
+    if (inp) inp.value = '';
+    if (err) { err.classList.add('hidden'); err.textContent = ''; }
+    if (modal) { modal.classList.remove('hidden'); modal.classList.add('flex'); }
+    setTimeout(() => inp && inp.focus(), 50);
+}
+
+function closeIgnorePatternsAddModal() {
+    const modal = document.getElementById('ignore-pattern-modal');
+    if (modal) { modal.classList.add('hidden'); modal.classList.remove('flex'); }
+}
+
+async function createIgnorePattern() {
+    const inp = document.getElementById('ip-pattern');
+    const err = document.getElementById('ignore-pattern-modal-error');
+    const pattern = (inp?.value || '').trim();
+    if (!pattern) { showIgnorePatternError('Введите маску'); return; }
+    if (!/[*?]/.test(pattern)) { showIgnorePatternError('Маска должна содержать * или ?'); return; }
+    try {
+        const resp = await fetch('/api/admin/pricing/vendor-mappings/ignore-patterns', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ pattern }),
+        });
+        const data = await resp.json().catch(() => ({}));
+        if (!resp.ok) { showIgnorePatternError(data.error || 'Ошибка'); return; }
+        closeIgnorePatternsAddModal();
+        await loadIgnorePatterns();
+        if (typeof showToast === 'function') showToast(`Маска «${pattern}» добавлена`, 'success');
+    } catch (e) {
+        showIgnorePatternError(e.message || 'Ошибка');
+    }
+}
+
+function showIgnorePatternError(msg) {
+    const box = document.getElementById('ignore-pattern-modal-error');
+    if (!box) return;
+    box.textContent = msg;
+    box.classList.remove('hidden');
+}
+
+async function deleteIgnorePattern(id, pattern) {
+    if (!confirm(`Удалить маску «${pattern}»?`)) return;
+    try {
+        const resp = await fetch('/api/admin/pricing/vendor-mappings/ignore-patterns', {
+            method: 'DELETE',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ id }),
+        });
+        const data = await resp.json().catch(() => ({}));
+        if (!resp.ok) { if (typeof showToast === 'function') showToast(data.error || 'Ошибка', 'error'); return; }
+        await loadIgnorePatterns();
+        if (typeof showToast === 'function') showToast(`Маска «${pattern}» удалена`, 'success');
+    } catch (e) {
+        if (typeof showToast === 'function') showToast(e.message || 'Ошибка', 'error');
+    }
+}
+
+function escapeHtml(s) {
+    return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;');
+}