feat(vendor-spec): BOM import, LOT autocomplete, pricing, partnumber_seen push

- BOM paste: auto-detect columns by content (price, qty, PN, description);
  handles $5,114.00 and European comma-decimal formats
- LOT input: HTML5 datalist rebuilt on each renderBOMTable from allComponents;
  oninput updates data only (no re-render), onchange validates+resolves
- BOM persistence: PUT handler explicitly marshals VendorSpec to JSON string
  (GORM Update does not reliably call driver.Valuer for custom types)
- BOM autosave after every resolveBOM() call
- Pricing tab: async renderPricingTab() calls /api/quote/price-levels for all
  resolved LOTs directly — Estimate prices shown even before cart apply
- Unresolved PNs pushed to qt_vendor_partnumber_seen via POST
  /api/sync/partnumber-seen (fire-and-forget from JS)
- sync.PushPartnumberSeen(): upsert with ON DUPLICATE KEY UPDATE last_seen_at
- partnumber_books: pull ALL books (not only is_active=1); re-pull items when
  header exists but item count is 0; fallback for missing description column
- partnumber_books UI: collapsible snapshot section (collapsed by default),
  pagination (10/page), sync button always visible in header
- vendorSpec handlers: use GetConfigurationByUUID + IsActive check (removed
  original_username from WHERE — GetUsername returns "" without JWT)
- bible/09-vendor-spec.md: updated with all architectural decisions

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

web/templates/index.html

@@ -143,113 +143,11 @@
         </div>
     </div>
 
-    <!-- Custom price section -->
-    <div id="custom-price-section" class="bg-white rounded-lg shadow overflow-hidden">
-        <button type="button"
-                onclick="toggleCustomPriceSection()"
-                class="w-full px-4 py-3 flex items-center justify-between text-blue-900 bg-gradient-to-r from-blue-100 to-blue-50 hover:from-blue-200 hover:to-blue-100 border-b border-blue-200">
-            <span class="font-semibold">Своя цена</span>
-            <svg id="custom-price-toggle-icon" class="w-5 h-5 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
-            </svg>
-        </button>
-        <div id="custom-price-content" class="p-4">
-        <div class="flex items-center gap-4 mb-4">
-            <div class="flex-1">
-                <label class="block text-sm text-gray-600 mb-1">Введите целевую цену</label>
-                <div class="flex items-center gap-2">
-                    <span class="text-gray-500">$</span>
-                    <input type="number" id="custom-price-input" step="0.01" min="0"
-                           placeholder="0.00"
-                           class="flex-1 px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500"
-                           oninput="calculateCustomPrice(); triggerAutoSave();">
-                    <button onclick="clearCustomPrice()" class="px-3 py-2 text-gray-500 hover:text-gray-700">
-                        <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
-                        </svg>
-                    </button>
-                </div>
-            </div>
-            <div id="discount-info" class="text-right hidden">
-                <div class="text-sm text-gray-600">Скидка</div>
-                <div class="text-2xl font-bold text-green-600" id="discount-percent">0%</div>
-            </div>
-        </div>
-
-        <!-- Adjusted prices table -->
-        <div id="adjusted-prices" class="hidden">
-            <div class="border-t pt-3">
-                <h4 class="text-sm font-medium text-gray-700 mb-2">Скорректированные цены</h4>
-                <div class="overflow-x-auto">
-                    <table class="w-full text-sm">
-                        <thead class="bg-gray-50">
-                            <tr>
-                                <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Компонент</th>
-                                <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Кол-во</th>
-                                <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Было</th>
-                                <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Стало</th>
-                                <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Итого</th>
-                            </tr>
-                        </thead>
-                        <tbody id="adjusted-prices-body" class="divide-y"></tbody>
-                        <tfoot class="bg-gray-50 font-medium">
-                            <tr>
-                                <td class="px-3 py-2" colspan="2">Итого</td>
-                                <td class="px-3 py-2 text-right" id="adjusted-total-original">$0.00</td>
-                                <td class="px-3 py-2 text-right text-green-600" id="adjusted-total-new">$0.00</td>
-                                <td class="px-3 py-2 text-right text-green-600" id="adjusted-total-final">$0.00</td>
-                            </tr>
-                        </tfoot>
-                    </table>
-                </div>
-            </div>
-            <div class="mt-3 flex justify-end">
-                <button onclick="exportCSVWithCustomPrice()" class="px-4 py-2 bg-green-600 text-white rounded hover:bg-green-700">
-                    Экспорт CSV со скидкой
-                </button>
-            </div>
-        </div>
-        </div>
-    </div>
-
-    <!-- Sale price section -->
-    <div id="sale-price-section" class="bg-white rounded-lg shadow overflow-hidden">
-        <button type="button"
-                onclick="toggleSalePriceSection()"
-                class="w-full px-4 py-3 flex items-center justify-between text-blue-900 bg-gradient-to-r from-blue-100 to-blue-50 hover:from-blue-200 hover:to-blue-100 border-b border-blue-200">
-            <span class="font-semibold">Цена продажи</span>
-            <svg id="sale-price-toggle-icon" class="w-5 h-5 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
-            </svg>
-        </button>
-        <div id="sale-price-content" class="p-4">
-        <div id="sale-prices" class="border-t pt-3">
-            <div class="overflow-x-auto">
-                <table class="w-full text-sm">
-                    <thead class="bg-gray-50">
-                        <tr>
-                            <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Артикул</th>
-                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Кол-во</th>
-                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Est. Price</th>
-                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Склад</th>
-                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Конкуренты</th>
-                        </tr>
-                    </thead>
-                    <tbody id="sale-prices-body" class="divide-y"></tbody>
-                    <tfoot class="bg-gray-50 font-medium">
-                        <tr>
-                            <td class="px-3 py-2">Итого</td>
-                            <td class="px-3 py-2 text-right">—</td>
-                            <td class="px-3 py-2 text-right" id="sale-total-est">$0.00</td>
-                            <td class="px-3 py-2 text-right" id="sale-total-warehouse">$0.00</td>
-                            <td class="px-3 py-2 text-right" id="sale-total-competitor">$0.00</td>
-                        </tr>
-                    </tfoot>
-                </table>
-            </div>
-        </div>
-        </div>
-    </div>
+    <!-- hidden inputs kept for JS compatibility -->
+    <input type="hidden" id="custom-price-input" value="">
+    <div id="adjusted-prices" class="hidden"></div>
+    <div id="discount-info" class="hidden"></div>
+    <div id="sale-prices" class="hidden"></div>
 
     </div><!-- end top-section-estimate -->
 
@@ -259,20 +157,9 @@
             <div class="mb-3">
                 <p class="text-sm font-medium text-gray-700 mb-2">Вставьте таблицу из Excel (Ctrl+V в область ниже)</p>
                 <div class="bg-gray-50 border border-gray-200 rounded p-3 text-xs text-gray-500 space-y-1">
-                    <p class="font-medium text-gray-600">Колонки строго по порядку:</p>
-                    <p>
-                        <span class="font-mono bg-white border border-gray-200 rounded px-1">PN</span>
-                        <span class="font-mono bg-white border border-gray-200 rounded px-1">Кол-во</span>
-                        <span class="text-gray-400 italic"> — минимальный</span>
-                    </p>
-                    <p>
-                        <span class="font-mono bg-white border border-gray-200 rounded px-1">PN</span>
-                        <span class="font-mono bg-white border border-gray-200 rounded px-1">Кол-во</span>
-                        <span class="font-mono bg-white border border-gray-200 rounded px-1">Описание</span>
-                        <span class="font-mono bg-white border border-gray-200 rounded px-1">Цена ед.</span>
-                        <span class="text-gray-400 italic"> — полный</span>
-                    </p>
-                    <p class="text-gray-400">Строка-заголовок пропускается автоматически если во 2-й колонке не число.</p>
+                    <p class="font-medium text-gray-600">Колонки определяются автоматически по содержимому. Обязательны: PN и Кол-во. Лишние колонки (секция, код и т.п.) игнорируются.</p>
+                    <p>Цена поддерживает форматы: <span class="font-mono">$5114,00</span> · <span class="font-mono">5 114.00</span> · <span class="font-mono">5114</span></p>
+                    <p class="text-gray-400">Строка-заголовок пропускается автоматически.</p>
                 </div>
             </div>
             <div id="bom-paste-area"
@@ -327,23 +214,24 @@
                     <table class="w-full text-sm border-collapse">
                         <thead class="bg-gray-50 text-gray-700">
                             <tr>
-                                <th class="px-3 py-2 text-left border-b">PN вендора</th>
                                 <th class="px-3 py-2 text-left border-b">LOT</th>
+                                <th class="px-3 py-2 text-left border-b">PN вендора</th>
+                                <th class="px-3 py-2 text-left border-b">Описание</th>
                                 <th class="px-3 py-2 text-right border-b">Кол-во</th>
-                                <th class="px-3 py-2 text-right border-b">Цена вендора</th>
                                 <th class="px-3 py-2 text-right border-b">Estimate</th>
+                                <th class="px-3 py-2 text-right border-b">Цена вендора</th>
                                 <th class="px-3 py-2 text-right border-b">Склад</th>
                                 <th class="px-3 py-2 text-right border-b">Конк.</th>
                             </tr>
                         </thead>
                         <tbody id="pricing-table-body">
-                            <tr><td colspan="7" class="px-3 py-8 text-center text-gray-400">Загрузите BOM вендора во вкладке «BOM вендора»</td></tr>
+                            <tr><td colspan="8" class="px-3 py-8 text-center text-gray-400">Загрузите BOM вендора во вкладке «BOM вендора»</td></tr>
                         </tbody>
                         <tfoot id="pricing-table-foot" class="hidden bg-gray-50 font-semibold">
                             <tr>
-                                <td colspan="3" class="px-3 py-2 text-right">Итого:</td>
-                                <td class="px-3 py-2 text-right" id="pricing-total-vendor">—</td>
+                                <td colspan="4" class="px-3 py-2 text-right">Итого:</td>
                                 <td class="px-3 py-2 text-right" id="pricing-total-estimate">—</td>
+                                <td class="px-3 py-2 text-right font-bold" id="pricing-total-vendor">—</td>
                                 <td class="px-3 py-2 text-right" id="pricing-total-warehouse">—</td>
                                 <td class="px-3 py-2 text-right">—</td>
                             </tr>
@@ -356,7 +244,10 @@
                            class="w-40 px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500"
                            oninput="onPricingCustomPriceInput()">
                     <button onclick="setPricingCustomPriceFromVendor()" class="px-3 py-2 bg-gray-100 text-gray-700 rounded hover:bg-gray-200 border border-gray-300 text-sm">
-                        = Сумма цен вендора
+                        Проставить цены BOM
+                    </button>
+                    <button onclick="exportPricingCSV()" class="px-3 py-2 bg-green-600 text-white rounded hover:bg-green-700 text-sm">
+                        Экспорт CSV
                     </button>
                     <span id="pricing-discount-info" class="text-sm text-gray-500 hidden">
                         Скидка от Estimate: <span id="pricing-discount-pct" class="font-semibold text-green-600"></span>
@@ -936,11 +827,19 @@ async function loadAllComponents() {
         const resp = await fetch('/api/components?per_page=5000');
         const data = await resp.json();
         allComponents = data.components || [];
+        window._bomAllComponents = allComponents;
     } catch(e) {
         console.error('Failed to load components', e);
         allComponents = [];
+        window._bomAllComponents = [];
     }
 }
+function _bomLots() {
+    return [...new Set((window._bomAllComponents || allComponents).map(c => c.lot_name).filter(Boolean))].sort();
+}
+function _bomLotValid(v) {
+    return (window._bomAllComponents || allComponents).some(c => c.lot_name === v);
+}
 
 function updateServerCount() {
     const serverCountInput = document.getElementById('server-count');
@@ -2658,36 +2557,97 @@ function switchTopTab(tab) {
 
 let bomRows = []; // [{vendor_pn, quantity, description, unit_price, total_price, resolved_lot, resolution_source}]
 
+// Parse a price string handling $, spaces, comma-as-decimal and comma-as-thousands.
+function parsePastePrice(s) {
+    if (!s) return null;
+    let v = s.replace(/[$\s]/g, '');
+    // Determine decimal separator: if ends with ",dd" treat comma as decimal
+    if (/,\d{1,2}$/.test(v)) {
+        v = v.replace(/\./g, '').replace(',', '.');
+    } else {
+        v = v.replace(/,/g, '');
+    }
+    const n = parseFloat(v);
+    return isNaN(n) ? null : n;
+}
+
+// Auto-detect which column index serves as PN, qty, description, price.
+function detectBOMColumns(rows) {
+    const ncols = Math.max(...rows.map(r => r.length));
+    let qtyCol = -1, pnCol = -1, descCol = -1, priceCol = -1;
+
+    // Price: last column where ≥70% of values parse as non-null price
+    for (let c = ncols - 1; c >= 0; c--) {
+        const hits = rows.filter(r => parsePastePrice(r[c] || '') !== null).length;
+        if (hits >= rows.length * 0.7) { priceCol = c; break; }
+    }
+
+    // Qty: first column (before price) where all values are integers 1..9999
+    for (let c = 0; c < ncols; c++) {
+        if (c === priceCol) continue;
+        const allInt = rows.every(r => /^\d{1,4}$/.test((r[c] || '').trim()));
+        if (allInt) { qtyCol = c; break; }
+    }
+
+    // PN: last column before qty that contains no spaces and looks like a product code
+    if (qtyCol > 0) {
+        for (let c = qtyCol - 1; c >= 0; c--) {
+            const looksPN = rows.every(r => {
+                const v = (r[c] || '').trim();
+                return v.length > 0 && v.length <= 60 && !/\s{2,}/.test(v);
+            });
+            if (looksPN) { pnCol = c; break; }
+        }
+    }
+    if (pnCol === -1) pnCol = 0;
+
+    // Description: column after qty with longest average text (excluding price col)
+    let bestLen = -1;
+    for (let c = (qtyCol !== -1 ? qtyCol + 1 : 1); c < ncols; c++) {
+        if (c === priceCol) continue;
+        const avg = rows.reduce((s, r) => s + (r[c] || '').length, 0) / rows.length;
+        if (avg > bestLen) { bestLen = avg; descCol = c; }
+    }
+
+    return { pnCol, qtyCol, descCol, priceCol };
+}
+
 function handleBOMPaste(event) {
     event.preventDefault();
     const text = event.clipboardData.getData('text/plain');
     if (!text) return;
 
     const lines = text.trim().split(/\r?\n/).filter(l => l.trim());
+    if (!lines.length) return;
+
+    // Split all rows
+    let rows = lines.map(l => l.split('\t').map(c => c.trim()));
+
+    // Skip header row: if qty column candidate on row 0 is not a number
+    // We detect columns on all rows first (without header), then recheck row 0
+    const { pnCol, qtyCol, descCol, priceCol } = detectBOMColumns(rows);
+
+    // Drop header if row[0][qtyCol] is not numeric
+    if (qtyCol !== -1 && rows.length > 1 && !/^\d+$/.test((rows[0][qtyCol] || '').trim())) {
+        rows = rows.slice(1);
+    }
+
     const parsed = [];
+    for (const cols of rows) {
+        const pn = pnCol !== -1 ? (cols[pnCol] || '').trim() : '';
+        if (!pn) continue;
 
-    // Fixed positional format: PN | qty | [description] | [price]
-    // Skip header: if col[1] is not numeric on the first row → skip that row
-    for (let i = 0; i < lines.length; i++) {
-        const cols = lines[i].split('\t').map(c => c.trim());
-        if (cols.length < 2) continue;
-
-        const pn = cols[0];
-        const rawQty = cols[1].replace(/[, ]/g, '');
-
-        // Skip header row
-        if (i === 0 && isNaN(parseInt(rawQty))) continue;
-
+        const rawQty = qtyCol !== -1 ? (cols[qtyCol] || '').trim() : '1';
         const qty = parseInt(rawQty) || 1;
-        const description = cols.length >= 3 ? cols[2] : '';
+
+        const description = descCol !== -1 ? (cols[descCol] || '').trim() : '';
+
         let unit_price = null, total_price = null;
-        if (cols.length >= 4) {
-            const rawPrice = cols[3].replace(/[, ]/g, '');
-            unit_price = parseFloat(rawPrice) || null;
-            if (unit_price) total_price = unit_price * qty;
+        if (priceCol !== -1) {
+            unit_price = parsePastePrice(cols[priceCol] || '');
+            if (unit_price !== null) total_price = unit_price * qty;
         }
 
-        if (!pn) continue;
         parsed.push({
             sort_order: (parsed.length + 1) * 10,
             vendor_pn: pn,
@@ -2739,6 +2699,18 @@ async function resolveBOM() {
                 }
             });
         }
+
+        // Push unresolved PNs to server partnumber_seen registry (fire-and-forget)
+        const unseen = bomRows
+            .filter(r => !r.resolved_lot || r.resolution_source === 'unresolved')
+            .map(r => ({ partnumber: r.vendor_pn, description: r.description || '' }));
+        if (unseen.length) {
+            fetch('/api/sync/partnumber-seen', {
+                method: 'POST',
+                headers: {'Content-Type': 'application/json'},
+                body: JSON.stringify({items: unseen})
+            }).catch(() => {});
+        }
     } catch (e) {
         console.warn('Resolution failed:', e);
     }
@@ -2747,6 +2719,11 @@ async function resolveBOM() {
 }
 
 function renderBOMTable() {
+    // Rebuild datalist for LOT autocomplete from current allComponents
+    let dl = document.getElementById('lot-autocomplete-list');
+    if (!dl) { dl = document.createElement('datalist'); dl.id = 'lot-autocomplete-list'; document.body.appendChild(dl); }
+    dl.innerHTML = _bomLots().map(l => `<option value="${escapeHtml(l)}">`).join('');
+
     const tbody = document.getElementById('bom-table-body');
     const cart = window._currentCart || [];
 
@@ -2776,9 +2753,10 @@ function renderBOMTable() {
 
         let lotCell = '';
         if (isUnresolved) {
-            lotCell = `<input type="text" placeholder="Введите LOT..." value="${row.manual_lot || ''}"
+            lotCell = `<input type="text" placeholder="Введите LOT..." value="${escapeHtml(row.manual_lot || '')}"
                 class="w-full px-2 py-1 border rounded text-sm focus:ring-1 focus:ring-blue-400"
-                oninput="bomRows[${idx}].manual_lot = this.value; debouncedResolveBOM();"
+                oninput="bomRows[${idx}].manual_lot = this.value;"
+                onchange="if(_bomLotValid(this.value)){bomRows[${idx}].manual_lot=this.value;resolveBOM();}else{this.value=bomRows[${idx}].manual_lot||'';}"
                 list="lot-autocomplete-list">`;
         } else {
             let suffix = '';
@@ -2919,45 +2897,114 @@ async function loadVendorSpec(configUUID) {
 
 // ==================== ЦЕНООБРАЗОВАНИЕ ====================
 
-function renderPricingTab() {
+async function renderPricingTab() {
     const tbody = document.getElementById('pricing-table-body');
     const tfoot = document.getElementById('pricing-table-foot');
 
-    if (!bomRows.length) {
-        tbody.innerHTML = '<tr><td colspan="7" class="px-3 py-8 text-center text-gray-400">Загрузите BOM вендора во вкладке «BOM вендора»</td></tr>';
-        tfoot.classList.add('hidden');
-        return;
+    const cart = window._currentCart || [];
+    const compMap = {};
+    (window._bomAllComponents || allComponents).forEach(c => { compMap[c.lot_name] = c; });
+
+    // Collect LOTs to price: from BOM rows (resolved) or from cart
+    let itemsForPriceLevels = [];
+    if (bomRows.length) {
+        const seen = new Set();
+        bomRows.forEach(row => {
+            const lot = row.resolved_lot;
+            if (lot && row.resolution_source !== 'unresolved' && !seen.has(lot)) {
+                seen.add(lot);
+                itemsForPriceLevels.push({ lot_name: lot, quantity: row.quantity });
+            }
+        });
+    } else {
+        itemsForPriceLevels = cart.map(item => ({ lot_name: item.lot_name, quantity: item.quantity }));
     }
 
-    const cart = window._currentCart || [];
-    const cartMap = {};
-    cart.forEach(item => { cartMap[item.lot_name] = item; });
+    // Fetch fresh price levels for these LOTs
+    const priceMap = {}; // lot_name → {estimate_price, ...}
+    if (itemsForPriceLevels.length) {
+        try {
+            const payload = {
+                items: itemsForPriceLevels,
+                pricelist_ids: Object.fromEntries(
+                    Object.entries(selectedPricelistIds)
+                        .filter(([, id]) => typeof id === 'number' && id > 0)
+                )
+            };
+            const resp = await fetch('/api/quote/price-levels', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(payload)
+            });
+            if (resp.ok) {
+                const data = await resp.json();
+                (data.items || []).forEach(i => { priceMap[i.lot_name] = i; });
+            }
+        } catch(e) { /* silent — pricing tab renders with available data */ }
+    }
 
-    let totalVendor = 0, totalEstimate = 0, totalWarehouse = 0;
-    let hasVendor = false, hasEstimate = false, hasWarehouse = false;
+    let totalVendor = 0, totalEstimate = 0;
+    let hasVendor = false, hasEstimate = false;
 
     tbody.innerHTML = '';
-    bomRows.forEach(row => {
-        const tr = document.createElement('tr');
-        const isUnresolved = !row.resolved_lot || row.resolution_source === 'unresolved';
-        const cartItem = row.resolved_lot ? (cartMap[row.resolved_lot] ?? null) : null;
-        const estimatePrice = cartItem ? cartItem.unit_price : null;
 
-        const vendorTotal = row.total_price != null ? row.total_price : (row.unit_price != null ? row.unit_price * row.quantity : null);
-        if (vendorTotal != null) { totalVendor += vendorTotal; hasVendor = true; }
-        if (estimatePrice != null) { totalEstimate += estimatePrice * row.quantity; hasEstimate = true; }
+    if (!bomRows.length) {
+        if (!cart.length) {
+            tbody.innerHTML = '<tr><td colspan="9" class="px-3 py-8 text-center text-gray-400">Нет данных для отображения</td></tr>';
+            tfoot.classList.add('hidden');
+            return;
+        }
+        cart.forEach(item => {
+            const tr = document.createElement('tr');
+            tr.classList.add('pricing-row');
+            const pl = priceMap[item.lot_name];
+            const estUnit = (pl && pl.estimate_price > 0) ? pl.estimate_price : (item.unit_price || 0);
+            const estimateTotal = estUnit * item.quantity;
+            if (estimateTotal > 0) { totalEstimate += estimateTotal; hasEstimate = true; }
+            tr.dataset.est = estimateTotal;
+            const desc = (compMap[item.lot_name] || {}).description || '';
+            tr.dataset.vendorOrig = '';
+            tr.innerHTML = `
+                <td class="px-3 py-1.5 text-xs">${escapeHtml(item.lot_name)}</td>
+                <td class="px-3 py-1.5 text-xs text-gray-400">—</td>
+                <td class="px-3 py-1.5 text-xs text-gray-500 truncate max-w-xs">${escapeHtml(desc)}</td>
+                <td class="px-3 py-1.5 text-right">${item.quantity}</td>
+                <td class="px-3 py-1.5 text-right text-xs">${estimateTotal > 0 ? formatCurrency(estimateTotal) : '—'}</td>
+                <td class="px-3 py-1.5 text-right text-xs text-gray-400 pricing-vendor-price">—</td>
+                <td class="px-3 py-1.5 text-right text-xs text-gray-400">—</td>
+                <td class="px-3 py-1.5 text-right text-xs text-gray-400">—</td>
+            `;
+            tbody.appendChild(tr);
+        });
+    } else {
+        bomRows.forEach(row => {
+            const tr = document.createElement('tr');
+            tr.classList.add('pricing-row');
+            const isUnresolved = !row.resolved_lot || row.resolution_source === 'unresolved';
+            const pl = row.resolved_lot ? priceMap[row.resolved_lot] : null;
+            const estimateUnit = (pl && pl.estimate_price > 0) ? pl.estimate_price : null;
+            const rowEst = estimateUnit != null ? estimateUnit * row.quantity : 0;
 
-        tr.innerHTML = `
-            <td class="px-3 py-1.5 font-mono text-xs">${escapeHtml(row.vendor_pn)}</td>
-            <td class="px-3 py-1.5 text-xs">${isUnresolved ? '<span class="text-red-500">н/д</span>' : escapeHtml(row.resolved_lot)}</td>
-            <td class="px-3 py-1.5 text-right">${row.quantity}</td>
-            <td class="px-3 py-1.5 text-right text-xs">${vendorTotal != null ? formatCurrency(vendorTotal) : '—'}</td>
-            <td class="px-3 py-1.5 text-right text-xs">${estimatePrice != null ? formatCurrency(estimatePrice * row.quantity) : '—'}</td>
-            <td class="px-3 py-1.5 text-right text-xs text-gray-400">—</td>
-            <td class="px-3 py-1.5 text-right text-xs text-gray-400">—</td>
-        `;
-        tbody.appendChild(tr);
-    });
+            const vendorTotal = row.total_price != null ? row.total_price : (row.unit_price != null ? row.unit_price * row.quantity : null);
+            if (vendorTotal != null) { totalVendor += vendorTotal; hasVendor = true; }
+            if (estimateUnit != null) { totalEstimate += rowEst; hasEstimate = true; }
+
+            tr.dataset.est = rowEst;
+            tr.dataset.vendorOrig = vendorTotal != null ? vendorTotal : '';
+            const desc = row.description || (row.resolved_lot ? ((compMap[row.resolved_lot] || {}).description || '') : '');
+            tr.innerHTML = `
+                <td class="px-3 py-1.5 text-xs">${isUnresolved ? '<span class="text-red-500">н/д</span>' : escapeHtml(row.resolved_lot)}</td>
+                <td class="px-3 py-1.5 font-mono text-xs">${escapeHtml(row.vendor_pn)}</td>
+                <td class="px-3 py-1.5 text-xs text-gray-500 truncate max-w-xs">${escapeHtml(desc)}</td>
+                <td class="px-3 py-1.5 text-right">${row.quantity}</td>
+                <td class="px-3 py-1.5 text-right text-xs">${estimateUnit != null ? formatCurrency(rowEst) : '—'}</td>
+                <td class="px-3 py-1.5 text-right text-xs pricing-vendor-price">${vendorTotal != null ? formatCurrency(vendorTotal) : '—'}</td>
+                <td class="px-3 py-1.5 text-right text-xs text-gray-400">—</td>
+                <td class="px-3 py-1.5 text-right text-xs text-gray-400">—</td>
+            `;
+            tbody.appendChild(tr);
+        });
+    }
 
     // Totals row
     document.getElementById('pricing-total-vendor').textContent = hasVendor ? formatCurrency(totalVendor) : '—';
@@ -2965,30 +3012,104 @@ function renderPricingTab() {
     document.getElementById('pricing-total-warehouse').textContent = '—';
     tfoot.classList.remove('hidden');
 
-    // Update custom price discount info
+    // Update custom price proportional breakdown
     onPricingCustomPriceInput();
 }
 
 function setPricingCustomPriceFromVendor() {
-    let totalVendor = 0;
-    bomRows.forEach(r => {
-        const vt = r.total_price != null ? r.total_price : (r.unit_price != null ? r.unit_price * r.quantity : 0);
-        totalVendor += vt;
+    // Apply per-row BOM prices directly (not proportional redistribution)
+    const rows = document.querySelectorAll('#pricing-table-body tr.pricing-row');
+    const vendorCells = document.querySelectorAll('#pricing-table-body .pricing-vendor-price');
+    let total = 0;
+    let hasAny = false;
+
+    rows.forEach((tr, i) => {
+        const cell = vendorCells[i];
+        if (!cell) return;
+        const orig = tr.dataset.vendorOrig;
+        if (orig !== '') {
+            const v = parseFloat(orig);
+            cell.textContent = formatCurrency(v);
+            cell.classList.remove('text-blue-700', 'text-gray-400');
+            total += v;
+            hasAny = true;
+        } else {
+            cell.textContent = '—';
+            cell.classList.add('text-gray-400');
+            cell.classList.remove('text-blue-700');
+        }
     });
-    document.getElementById('pricing-custom-price').value = totalVendor.toFixed(2);
-    onPricingCustomPriceInput();
+
+    document.getElementById('pricing-total-vendor').textContent = hasAny ? formatCurrency(total) : '—';
+    document.getElementById('pricing-custom-price').value = hasAny ? total.toFixed(2) : '';
+
+    // Update discount info only
+    const rows2 = document.querySelectorAll('#pricing-table-body tr.pricing-row');
+    let estimateTotal = 0;
+    rows2.forEach(tr => { estimateTotal += parseFloat(tr.dataset.est) || 0; });
+    const discountEl = document.getElementById('pricing-discount-info');
+    const pctEl = document.getElementById('pricing-discount-pct');
+    if (hasAny && total > 0 && estimateTotal > 0) {
+        pctEl.textContent = ((estimateTotal - total) / estimateTotal * 100).toFixed(1) + '%';
+        discountEl.classList.remove('hidden');
+    } else {
+        discountEl.classList.add('hidden');
+    }
 }
 
 function onPricingCustomPriceInput() {
     const customPrice = parseFloat(document.getElementById('pricing-custom-price').value) || 0;
-    // Compute estimate total
-    const cart = window._currentCart || [];
-    let estimateTotal = 0;
-    cart.forEach(item => { estimateTotal += (item.unit_price || 0) * item.quantity; });
 
+    const rows = document.querySelectorAll('#pricing-table-body tr.pricing-row');
+    let estimateTotal = 0;
+    rows.forEach(tr => { estimateTotal += parseFloat(tr.dataset.est) || 0; });
+
+    const vendorCells = document.querySelectorAll('#pricing-table-body .pricing-vendor-price');
+    const totalVendorEl = document.getElementById('pricing-total-vendor');
+
+    if (customPrice > 0 && estimateTotal > 0) {
+        // Proportionally redistribute custom price → Цена вендора cells
+        let assigned = 0;
+        rows.forEach((tr, i) => {
+            const est = parseFloat(tr.dataset.est) || 0;
+            const cell = vendorCells[i];
+            if (!cell) return;
+            let share;
+            if (i === rows.length - 1) {
+                share = customPrice - assigned;
+            } else {
+                share = Math.round((est / estimateTotal) * customPrice * 100) / 100;
+                assigned += share;
+            }
+            cell.textContent = formatCurrency(share);
+            cell.classList.add('text-blue-700');
+            cell.classList.remove('text-gray-400');
+        });
+        totalVendorEl.textContent = formatCurrency(customPrice);
+    } else {
+        // Restore original vendor prices from BOM
+        rows.forEach((tr, i) => {
+            const cell = vendorCells[i];
+            if (!cell) return;
+            const orig = tr.dataset.vendorOrig;
+            if (orig !== '') {
+                cell.textContent = formatCurrency(parseFloat(orig));
+                cell.classList.remove('text-blue-700', 'text-gray-400');
+            } else {
+                cell.textContent = '—';
+                cell.classList.add('text-gray-400');
+                cell.classList.remove('text-blue-700');
+            }
+        });
+        // Recompute vendor total from originals
+        let origTotal = 0; let hasOrig = false;
+        rows.forEach(tr => { if (tr.dataset.vendorOrig !== '') { origTotal += parseFloat(tr.dataset.vendorOrig) || 0; hasOrig = true; } });
+        totalVendorEl.textContent = hasOrig ? formatCurrency(origTotal) : '—';
+    }
+
+    // Discount info
     const discountEl = document.getElementById('pricing-discount-info');
     const pctEl = document.getElementById('pricing-discount-pct');
-
     if (customPrice > 0 && estimateTotal > 0) {
         const discount = ((estimateTotal - customPrice) / estimateTotal * 100).toFixed(1);
         pctEl.textContent = discount + '%';
@@ -2998,6 +3119,39 @@ function onPricingCustomPriceInput() {
     }
 }
 
+function exportPricingCSV() {
+    const rows = document.querySelectorAll('#pricing-table-body tr.pricing-row');
+    if (!rows.length) { showToast('Нет данных для экспорта', 'error'); return; }
+
+    const csvEscape = v => {
+        if (v == null) return '';
+        const s = String(v).replace(/"/g, '""');
+        return /[,"\n]/.test(s) ? `"${s}"` : s;
+    };
+
+    const headers = ['LOT', 'PN вендора', 'Описание', 'Кол-во', 'Estimate', 'Цена вендора', 'Склад', 'Конкуренты'];
+    const lines = [headers.map(csvEscape).join(',')];
+
+    rows.forEach(tr => {
+        const cells = tr.querySelectorAll('td');
+        const rowData = Array.from(cells).map(td => td.textContent.trim());
+        lines.push(rowData.map(csvEscape).join(','));
+    });
+
+    // Totals row
+    const estTotal = document.getElementById('pricing-total-estimate').textContent.trim();
+    const vendorTotal = document.getElementById('pricing-total-vendor').textContent.trim();
+    lines.push(['', '', '', 'Итого', estTotal, vendorTotal, '', ''].map(csvEscape).join(','));
+
+    const blob = new Blob(['\uFEFF' + lines.join('\r\n')], {type: 'text/csv;charset=utf-8;'});
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement('a');
+    a.href = url;
+    a.download = `pricing_${configUUID || 'export'}.csv`;
+    a.click();
+    URL.revokeObjectURL(url);
+}
+
 function escapeHtml(str) {
     if (!str) return '';
     return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;');
@@ -3008,27 +3162,6 @@ function formatCurrency(val) {
     return val.toLocaleString('ru-RU', {minimumFractionDigits: 2, maximumFractionDigits: 2});
 }
 
-// ==================== AUTOCOMPLETE LIST FOR BOM ====================
-// Inject datalist for lot autocomplete in BOM inline inputs
-(function() {
-    const dl = document.createElement('datalist');
-    dl.id = 'lot-autocomplete-list';
-    document.body.appendChild(dl);
-
-    // Populate datalist once allComponents is available
-    function populateLotDatalist() {
-        if (!window.allComponents || !window.allComponents.length) return;
-        dl.innerHTML = '';
-        window.allComponents.forEach(c => {
-            const opt = document.createElement('option');
-            opt.value = c.lot_name;
-            dl.appendChild(opt);
-        });
-    }
-
-    // Try after a short delay (components load async)
-    setTimeout(populateLotDatalist, 2000);
-})();
 
 </script>
 {{end}}

web/templates/partnumber_books.html

@@ -2,12 +2,7 @@
 
 {{define "content"}}
 <div class="space-y-4">
-    <div class="flex items-center justify-between">
-        <h1 class="text-2xl font-bold text-gray-900">Партномера</h1>
-        <button onclick="syncPartnumberBooks()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700 text-sm">
-            Синхронизировать
-        </button>
-    </div>
+    <h1 class="text-2xl font-bold text-gray-900">Партномера</h1>
 
     <!-- Summary cards -->
     <div id="summary-cards" class="grid grid-cols-2 md:grid-cols-4 gap-4 hidden">
@@ -59,50 +54,96 @@
     </div>
 
     <!-- All books list (collapsed by default) -->
-    <details class="bg-white rounded-lg shadow overflow-hidden">
-        <summary class="px-4 py-3 cursor-pointer text-sm font-medium text-gray-700 hover:bg-gray-50 select-none">
-            История снимков
-        </summary>
-        <div id="books-list-loading" class="p-6 text-center text-gray-400 text-sm">Загрузка...</div>
-        <table id="books-table" class="w-full text-sm hidden">
-            <thead class="bg-gray-50 text-gray-600">
-                <tr>
-                    <th class="px-4 py-2 text-left">Версия</th>
-                    <th class="px-4 py-2 text-left">Дата</th>
-                    <th class="px-4 py-2 text-right">Позиций</th>
-                    <th class="px-4 py-2 text-center">Статус</th>
-                </tr>
-            </thead>
-            <tbody id="books-table-body"></tbody>
-        </table>
-        <div id="books-empty" class="hidden p-6 text-center text-gray-400 text-sm">
-            Нет загруженных снимков.
+    <div class="bg-white rounded-lg shadow overflow-hidden">
+        <!-- Header row — always visible -->
+        <div class="px-4 py-3 flex items-center justify-between">
+            <button onclick="toggleBooksSection()" class="flex items-center gap-2 text-sm font-semibold text-gray-800 hover:text-gray-600 select-none">
+                <svg id="books-chevron" class="w-4 h-4 text-gray-400 transition-transform duration-150" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" d="M9 5l7 7-7 7"/></svg>
+                Снимки сопоставлений (Partnumber Books)
+            </button>
+            <button onclick="syncPartnumberBooks()" class="px-4 py-2 bg-orange-500 text-white rounded hover:bg-orange-600 text-sm font-medium">
+                Синхронизировать
+            </button>
         </div>
-    </details>
+        <!-- Collapsible body -->
+        <div id="books-section-body" class="hidden border-t">
+            <div id="books-list-loading" class="p-6 text-center text-gray-400 text-sm">Загрузка...</div>
+            <table id="books-table" class="w-full text-sm hidden">
+                <thead class="bg-gray-50 text-gray-600">
+                    <tr>
+                        <th class="px-4 py-2 text-left">Версия</th>
+                        <th class="px-4 py-2 text-left">Дата</th>
+                        <th class="px-4 py-2 text-right">Позиций</th>
+                        <th class="px-4 py-2 text-center">Статус</th>
+                    </tr>
+                </thead>
+                <tbody id="books-table-body"></tbody>
+            </table>
+            <div id="books-empty" class="hidden p-6 text-center text-gray-400 text-sm">
+                Нет загруженных снимков.
+            </div>
+            <!-- Pagination -->
+            <div id="books-pagination" class="hidden px-4 py-3 border-t flex items-center justify-between text-sm text-gray-600">
+                <span id="books-page-info"></span>
+                <div class="flex gap-2">
+                    <button id="books-prev" onclick="changeBooksPage(-1)" class="px-3 py-1 rounded border hover:bg-gray-50 disabled:opacity-40 disabled:cursor-not-allowed">← Назад</button>
+                    <button id="books-next" onclick="changeBooksPage(1)"  class="px-3 py-1 rounded border hover:bg-gray-50 disabled:opacity-40 disabled:cursor-not-allowed">Вперёд →</button>
+                </div>
+            </div>
+        </div>
+    </div>
 </div>
-{{end}}
 
-{{define "scripts"}}
+
 <script>
 let allItems = [];
+let allBooks = [];
+let booksPage = 1;
+const BOOKS_PER_PAGE = 10;
+
+function toggleBooksSection() {
+    const body = document.getElementById('books-section-body');
+    const chevron = document.getElementById('books-chevron');
+    const collapsed = body.classList.toggle('hidden');
+    chevron.style.transform = collapsed ? '' : 'rotate(90deg)';
+}
 
 async function loadBooks() {
-    const resp = await fetch('/api/partnumber-books');
-    const data = await resp.json();
-    const books = data.books || [];
+    let resp, data;
+    try {
+        resp = await fetch('/api/partnumber-books');
+        data = await resp.json();
+    } catch (e) {
+        document.getElementById('books-list-loading').classList.add('hidden');
+        document.getElementById('books-empty').classList.remove('hidden');
+        return;
+    }
 
+    allBooks = data.books || [];
     document.getElementById('books-list-loading').classList.add('hidden');
 
-    if (!books.length) {
+    if (!allBooks.length) {
         document.getElementById('books-empty').classList.remove('hidden');
         document.getElementById('summary-empty').classList.remove('hidden');
         return;
     }
 
-    // Fill history table
+    booksPage = 1;
+    renderBooksPage();
+
+    const active = allBooks.find(b => b.is_active) || allBooks[0];
+    await loadActiveBookItems(active);
+}
+
+function renderBooksPage() {
+    const total = allBooks.length;
+    const totalPages = Math.ceil(total / BOOKS_PER_PAGE);
+    const start = (booksPage - 1) * BOOKS_PER_PAGE;
+    const pageBooks = allBooks.slice(start, start + BOOKS_PER_PAGE);
+
     const tbody = document.getElementById('books-table-body');
     tbody.innerHTML = '';
-    books.forEach(b => {
+    pageBooks.forEach(b => {
         const tr = document.createElement('tr');
         tr.className = 'border-b hover:bg-gray-50';
         tr.innerHTML = `
@@ -119,17 +160,36 @@ async function loadBooks() {
     });
     document.getElementById('books-table').classList.remove('hidden');
 
-    // Load active book detail
-    const active = books.find(b => b.is_active) || books[0];
-    await loadActiveBookItems(active);
+    // Pagination controls
+    if (total > BOOKS_PER_PAGE) {
+        document.getElementById('books-pagination').classList.remove('hidden');
+        document.getElementById('books-page-info').textContent =
+            `Снимки ${start + 1}–${Math.min(start + BOOKS_PER_PAGE, total)} из ${total}`;
+        document.getElementById('books-prev').disabled = booksPage === 1;
+        document.getElementById('books-next').disabled = booksPage === totalPages;
+    } else {
+        document.getElementById('books-pagination').classList.add('hidden');
+    }
+}
+
+function changeBooksPage(delta) {
+    const totalPages = Math.ceil(allBooks.length / BOOKS_PER_PAGE);
+    booksPage = Math.max(1, Math.min(totalPages, booksPage + delta));
+    renderBooksPage();
 }
 
 async function loadActiveBookItems(book) {
-    const resp = await fetch(`/api/partnumber-books/${book.server_id}`);
-    const data = await resp.json();
+    let resp, data;
+    try {
+        resp = await fetch(`/api/partnumber-books/${book.server_id}`);
+        data = await resp.json();
+    } catch (e) {
+        return;
+    }
+    if (!resp.ok) return;
+
     allItems = data.items || [];
 
-    // Compute stats
     const lots = new Set(allItems.map(i => i.lot_name));
     const primaryCount = allItems.filter(i => i.is_primary_pn).length;
 
@@ -170,17 +230,21 @@ function filterItems(query) {
 }
 
 async function syncPartnumberBooks() {
+    let resp, data;
     try {
-        const resp = await fetch('/api/sync/partnumber-books', {method: 'POST'});
-        const data = await resp.json();
-        if (data.success) {
-            showToast(`Синхронизировано: ${data.synced} листов`, 'success');
-            loadBooks();
-        } else {
-            showToast('Ошибка: ' + data.error, 'error');
-        }
+        resp = await fetch('/api/sync/partnumber-books', {method: 'POST'});
+        data = await resp.json();
     } catch (e) {
         showToast('Ошибка синхронизации', 'error');
+        return;
+    }
+    if (data.success) {
+        showToast(`Синхронизировано: ${data.synced} листов`, 'success');
+        loadBooks();
+    } else if (data.blocked) {
+        showToast(`Синк заблокирован: ${data.reason_text}`, 'error');
+    } else {
+        showToast('Ошибка: ' + (data.error || 'неизвестная ошибка'), 'error');
     }
 }
 
@@ -189,3 +253,4 @@ document.addEventListener('DOMContentLoaded', loadBooks);
 {{end}}
 
 {{template "base" .}}
+