feat(go, ts): add system-region mapping and highlight functionality

frontend/src/components/SearchDialog.tsx

@@ -3,7 +3,6 @@ import { useNavigate } from 'react-router-dom';
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog';
 import { Input } from '@/components/ui/input';
 import { AhoCorasick } from '@/lib/aho';
-import pb from '@/lib/pocketbase';
 
 interface SearchResult {
   system: string;
@@ -11,26 +10,22 @@ interface SearchResult {
 }
 
 async function loadAllSystems(): Promise<Array<SearchResult>> {
-  // Fetch system names with regions from PocketBase, paginated and minimal fields
-  const perPage = 1000;
-  let page = 1;
-  const out: Array<SearchResult> = [];
-  const seen = new Set<string>();
-  // loop pages until fewer than perPage items
-  while (true) {
-    const res = await pb.collection('regionview').getList(page, perPage, { fields: 'sysname,sysregion' });
-    for (const item of res.items as any[]) {
-      const system: string = item.sysname;
-      const region: string = item.sysregion;
-      if (!seen.has(system)) {
+  // Fetch from Go (Wails): local SQLite DB via App.ListSystemsWithRegions
+  try {
+    const list = await (window as any)?.go?.main?.App?.ListSystemsWithRegions?.();
+    if (Array.isArray(list)) {
+      const seen = new Set<string>();
+      const out: Array<SearchResult> = [];
+      for (const item of list) {
+        const system = String(item.system);
+        if (seen.has(system)) continue;
         seen.add(system);
-        out.push({ system, region });
+        out.push({ system, region: String(item.region) });
       }
+      return out;
     }
-    if (res.items.length < perPage) break;
-    page += 1;
-  }
-  return out;
+  } catch (_) { /* noop */ }
+  return [];
 }
 
 export const SearchDialog: React.FC = () => {