Add paste support to wmux terminal

Listen for paste events on the renderer's keyInput and forward the
pasted bytes to the PTY as base64 input. Paste is suppressed when
prefix mode or search overlay is active.

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

Author: shmuel hizmi

packages/wmux-client-terminal/src/components/WmuxTerminal.tsx

@@ -1,6 +1,6 @@
 /** @jsxImportSource @opentui/react */
 import { useState, useEffect, useRef, useCallback, type ReactNode } from "react";
-import { useKeyboard, useTerminalDimensions } from "@opentui/react";
+import { useKeyboard, useRenderer, useTerminalDimensions } from "@opentui/react";
 import { fromBase64, toBase64 } from "../utils/base64";
 import { getOrCreateBuffer, type StyledLine, type StyledSegment } from "../utils/ansi";
 import { usePrefixContext } from "./FocusContext";
@@ -44,6 +44,7 @@ export const WmuxTerminal = (props: WmuxTerminalProps): ReactNode => {
   const { id, output, status } = props;
   const sendInput = props.onInput.mutate;
   const sendResize = props.onResize.mutate;
+  const renderer = useRenderer();
   const { prefixRef, searchOpenRef, hasSelectionRef, activeTabId } = usePrefixContext();
 
   const [lines, setLines] = useState<readonly StyledLine[]>([]);
@@ -71,6 +72,18 @@ export const WmuxTerminal = (props: WmuxTerminalProps): ReactNode => {
     }
   });
 
+  // Forward paste events to PTY
+  useEffect(() => {
+    const onPaste = (event: { readonly bytes: Uint8Array }) => {
+      if (!isActiveTerminal) return;
+      if (prefixRef.current || searchOpenRef.current) return;
+      sendInput(toBase64(event.bytes));
+    };
+    const keyInput = renderer.keyInput as unknown as { on(e: string, fn: (event: { readonly bytes: Uint8Array }) => void): void; off(e: string, fn: (event: { readonly bytes: Uint8Array }) => void): void };
+    keyInput.on("paste", onPaste);
+    return () => { keyInput.off("paste", onPaste); };
+  }, [renderer, isActiveTerminal, prefixRef, searchOpenRef, sendInput]);
+
   const handleOutput = useCallback((b64: string) => {
     const bytes = fromBase64(b64);
     const text = new TextDecoder().decode(bytes);