fix: remove ResizeObserver to prevent infinite resize loop

The ResizeObserver triggered fit() which changed canvas dimensions,
triggering the observer again in an infinite loop. We already have
window resize handling and delayed fit() calls, so the observer was
redundant.

apps/web/src/components/terminal.tsx

@@ -242,25 +242,6 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
 
     window.addEventListener("resize", handleResize);
 
-    // Watch container size changes (keyboard, header auto-hide, etc.)
-    let resizeObserver: ResizeObserver | null = null;
-    if (terminalRef.current && typeof ResizeObserver !== "undefined") {
-      resizeObserver = new ResizeObserver(() => {
-        fitAddon.fit();
-        const { cols, rows } = term;
-        if (ws.readyState === WebSocket.OPEN) {
-          ws.send(
-            JSON.stringify({
-              type: "resize",
-              cols,
-              rows,
-            })
-          );
-        }
-      });
-      resizeObserver.observe(terminalRef.current);
-    }
-
     // Notify parent about terminal readiness
     if (onTerminalReadyRef.current) {
       const sendData = (data: string) => {
@@ -289,9 +270,6 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
     return () => {
       clearTimeout(resizeTimeout);
       window.removeEventListener("resize", handleResize);
-      if (resizeObserver) {
-        resizeObserver.disconnect();
-      }
       document.removeEventListener("visibilitychange", handleVisibilityChange);
       ws.close();
       term.dispose();