feat(app): load xterm search addon + surface→addon registry

app/package-lock.json

@@ -12,6 +12,7 @@
         "@fontsource/inter": "^5.2.8",
         "@tauri-apps/api": "^2",
         "@tauri-apps/plugin-notification": "^2",
+        "@xterm/addon-search": "^0.16.0",
         "@xterm/addon-webgl": "^0.18.0",
         "@xterm/xterm": "^5.5.0",
         "lucide-react": "^1.17.0",
@@ -1462,6 +1463,12 @@
         "vite": "^4.2.0 || ^5.0.0 || ^6.0.0 || ^7.0.0"
       }
     },
+    "node_modules/@xterm/addon-search": {
+      "version": "0.16.0",
+      "resolved": "https://registry.npmjs.org/@xterm/addon-search/-/addon-search-0.16.0.tgz",
+      "integrity": "sha512-9OeuBFu0/uZJPu+9AHKY6g/w0Czyb/Ut0A5t79I4ULoU4IfU5BEpPFVGQxP4zTTMdfZEYkVIRYbHBX1xWwjeSA==",
+      "license": "MIT"
+    },
     "node_modules/@xterm/addon-webgl": {
       "version": "0.18.0",
       "resolved": "https://registry.npmjs.org/@xterm/addon-webgl/-/addon-webgl-0.18.0.tgz",

app/package.json

@@ -13,6 +13,7 @@
     "@fontsource/inter": "^5.2.8",
     "@tauri-apps/api": "^2",
     "@tauri-apps/plugin-notification": "^2",
+    "@xterm/addon-search": "^0.16.0",
     "@xterm/addon-webgl": "^0.18.0",
     "@xterm/xterm": "^5.5.0",
     "lucide-react": "^1.17.0",

app/src/TerminalView.tsx

@@ -1,7 +1,9 @@
 import { useEffect, useRef } from "react";
 import { Terminal } from "@xterm/xterm";
 import { WebglAddon } from "@xterm/addon-webgl";
+import { SearchAddon } from "@xterm/addon-search";
 import { attachSurface, detachSurface, sendInput, resizeSurface } from "./socketBridge";
+import { registerSearch, unregisterSearch } from "./searchRegistry";
 
 const decoder = new TextDecoder();
 const encoder = new TextEncoder();
@@ -11,7 +13,7 @@ export function TerminalView({ surfaceId }: { surfaceId: string }) {
 
   useEffect(() => {
     if (!ref.current) return;
-    const term = new Terminal({ fontFamily: "'JetBrains Mono Variable', 'JetBrains Mono', monospace", fontSize: 13, convertEol: false });
+    const term = new Terminal({ fontFamily: "'JetBrains Mono Variable', 'JetBrains Mono', monospace", fontSize: 13, convertEol: false, scrollback: 10000 });
     try {
       term.loadAddon(new WebglAddon());
     } catch {
@@ -19,6 +21,10 @@ export function TerminalView({ surfaceId }: { surfaceId: string }) {
     }
     term.open(ref.current);
 
+    const search = new SearchAddon();
+    term.loadAddon(search);
+    registerSearch(surfaceId, search);
+
     // Input → daemon.
     const inputDisposable = term.onData((data) => {
       void sendInput(surfaceId, encoder.encode(data));
@@ -42,6 +48,7 @@ export function TerminalView({ surfaceId }: { surfaceId: string }) {
       disposed = true;
       inputDisposable.dispose();
       void detachSurface(surfaceId);
+      unregisterSearch(surfaceId);
       term.dispose();
     };
   }, [surfaceId]);

app/src/searchRegistry.ts

@@ -0,0 +1,17 @@
+import type { SearchAddon } from "@xterm/addon-search";
+
+/** Maps a surfaceId to its terminal's SearchAddon so the search bar can reach
+ * the focused panel without prop-drilling through the layout tree. */
+const registry = new Map<string, SearchAddon>();
+
+export function registerSearch(surfaceId: string, addon: SearchAddon): void {
+  registry.set(surfaceId, addon);
+}
+
+export function unregisterSearch(surfaceId: string): void {
+  registry.delete(surfaceId);
+}
+
+export function getSearch(surfaceId: string): SearchAddon | undefined {
+  return registry.get(surfaceId);
+}