Add 0-9 number keys to sticky modifier tab

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

Author: davindicode

app/components/terminal/InputBox.tsx

@@ -139,13 +139,17 @@ const STICKY_MODES: { id: StickyMode; label: string }[] = [
 ];
 
 function getStickyKey(ch: string, mode: StickyMode): string {
+  const isLetter = ch >= "A" && ch <= "Z";
   switch (mode) {
     case "ctrl":
-      return String.fromCharCode(ch.charCodeAt(0) - 64);
+      // Ctrl+Letter = control code, Ctrl+Digit = send via CSI u
+      return isLetter
+        ? String.fromCharCode(ch.charCodeAt(0) - 64)
+        : `\x1b[${ch.charCodeAt(0)};5u`;
     case "ctrl+shift":
       return `\x1b[${ch.charCodeAt(0)};6u`;
     case "alt":
-      return `\x1b${ch.toLowerCase()}`;
+      return `\x1b${isLetter ? ch.toLowerCase() : ch}`;
     case "alt+shift":
       return `\x1b${ch}`;
   }
@@ -504,6 +508,17 @@ export default function InputBox() {
             ))}
           </div>
           <div className="flex flex-wrap gap-1">
+            {"0123456789".split("").map((ch) => (
+              <button
+                key={ch}
+                {...repeatProps(getStickyKey(ch, stickyMode))}
+                disabled={!activeSessionId}
+                title={`${STICKY_MODES.find((m) => m.id === stickyMode)?.label}${ch}`}
+                className={keyBtn}
+              >
+                {ch}
+              </button>
+            ))}
             {"ABCDEFGHIJKLMNOPQRSTUVWXYZ".split("").map((ch) => (
               <button
                 key={ch}