feat: add OWL product mapping UI with live AJAX search

- AjaxSearch component: debounced 300ms, calls /woo/search/* endpoints via rpc()
- ProductMapping client action: 3 tabs (Mapped, Unmatched, Conflicts)
  - Mapped tab: live search, bulk unmap/sync, per-row price/inventory sync toggles
  - Unmatched tab: split Odoo|WC panels, click-to-select, Map/Create/Ignore actions
  - Conflicts tab: Use Odoo / Use WC per-row and bulk resolve
- Top bar: instance selector, Fetch Products, Sync Now, live stats
- woo_dashboard.xml updated with ir.actions.client records
- woo_menus.xml pointed at new client action
- CSS: full layout styles, badges, split view, progress bar, buttons

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

fusion-woo-odoo/fusion_woocommerce/static/src/js/ajax_search.js

@@ -0,0 +1,47 @@
+/** @odoo-module **/
+
+import { Component, useState } from "@odoo/owl";
+import { rpc } from "@web/core/network/rpc";
+
+/**
+ * AjaxSearch — reusable debounced search component.
+ *
+ * Props:
+ *   endpoint   {String}   The /woo/search/* URL to POST to.
+ *   instanceId {Number}   woo.instance ID (optional).
+ *   onResults  {Function} Callback receives the results array.
+ *   placeholder {String}  Input placeholder text.
+ */
+export class AjaxSearch extends Component {
+    static template = "fusion_woocommerce.AjaxSearch";
+    static props = ["endpoint", "onResults", "*"];
+
+    setup() {
+        this.state = useState({ query: "" });
+        this._debounceTimer = null;
+    }
+
+    onInput(ev) {
+        const query = ev.target.value;
+        this.state.query = query;
+
+        clearTimeout(this._debounceTimer);
+        this._debounceTimer = setTimeout(() => {
+            this._doSearch(query);
+        }, 300);
+    }
+
+    async _doSearch(query) {
+        try {
+            const params = { query };
+            if (this.props.instanceId) {
+                params.instance_id = this.props.instanceId;
+            }
+            const results = await rpc(this.props.endpoint, params);
+            this.props.onResults(results || []);
+        } catch (err) {
+            console.error("[AjaxSearch] search error:", err);
+            this.props.onResults([]);
+        }
+    }
+}