fix: ignore key repeat on space for voice input

Holding space was triggering start→send in rapid succession, causing
gibberish to be sent. Now checks e.repeat to only act on initial press.

Author: ammar-agent

src/browser/components/ChatInput/index.tsx

@@ -499,7 +499,7 @@ export const ChatInput: React.FC<ChatInputProps> = (props) => {
     // Global keybinds only active during recording
     const handleKeyDown = (e: KeyboardEvent) => {
       if (voiceInput.state !== "recording") return;
-      if (e.key === " ") {
+      if (e.key === " " && !e.repeat) {
         e.preventDefault();
         voiceInput.stop({ send: true });
       } else if (e.key === "Escape") {
@@ -862,9 +862,10 @@ export const ChatInput: React.FC<ChatInputProps> = (props) => {
       return;
     }
 
-    // Space on empty input starts voice recording
+    // Space on empty input starts voice recording (ignore key repeat from holding)
     if (
       e.key === " " &&
+      !e.repeat &&
       input.trim() === "" &&
       voiceInput.shouldShowUI &&
       voiceInput.isApiKeySet &&