feat: persistent search and filters across all tabs via FilterContext

src/App.tsx

@@ -4,6 +4,7 @@ import { X } from 'lucide-react';
 import { cn } from './lib/utils';
 import { AppState, ExcelRow, resolveColumnIndices, COLUMNS } from './types';
 import { ColumnsProvider } from './contexts/ColumnsContext';
+import { FilterProvider } from './contexts/FilterContext';
 import { Sidebar } from './components/Sidebar';
 import { TopBar } from './components/TopBar';
 import { ProductDescriptions } from './components/ProductDescriptions';
@@ -618,7 +619,8 @@ const articleNoIdx = resolvedCols.ARTICLE_NO;
 
   return (
     <ColumnsProvider headers={appState.headers}>
-      <div className="h-screen bg-[#040d1a] text-slate-200 flex flex-col font-sans overflow-hidden">
+      <FilterProvider>
+        <div className="h-screen bg-[#040d1a] text-slate-200 flex flex-col font-sans overflow-hidden">
       {!isMaximized && (
         <TopBar
           stats={stats}
@@ -803,6 +805,7 @@ const articleNoIdx = resolvedCols.ARTICLE_NO;
         />
       )}
     </div>
+      </FilterProvider>
     </ColumnsProvider>
   );
 }