feat: add pagination, individual price sync arrows, and bulk price sync

- Pagination with page nav for mapped, unmatched Odoo, and unmatched WC tabs
- Per-product arrow buttons to push price in either direction
- Bulk price sync buttons: All Prices Odoo→WC and All Prices WC→Odoo
- Server-side offset/limit with total count in search endpoints

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

fusion-woo-odoo/fusion_woocommerce/static/src/css/woo_styles.css

@@ -554,3 +554,40 @@ html[style*="color-scheme: dark"] {
 .woo-card strong {
     color: var(--woo-text-primary);
 }
+
+/* ----------------------------------------------------------
+   Pagination
+   ---------------------------------------------------------- */
+.woo-pagination {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 12px;
+    padding: 12px 0;
+}
+.woo-pagination-info {
+    font-size: 0.85rem;
+    color: var(--woo-text-muted);
+}
+
+/* ----------------------------------------------------------
+   Icon buttons (price sync arrows)
+   ---------------------------------------------------------- */
+.woo-btn-icon {
+    background: none;
+    border: none;
+    cursor: pointer;
+    padding: 2px 4px;
+    color: var(--woo-text-muted);
+    font-size: 0.8rem;
+    border-radius: 4px;
+    transition: color 0.15s, background 0.15s;
+}
+.woo-btn-icon:hover {
+    color: var(--woo-accent);
+    background: var(--woo-bg-hover);
+}
+.woo-price-sync-col {
+    width: 60px;
+    white-space: nowrap;
+}