fix(wui): enable meta+enter submission from all fields in session launcher

Resolves issue #443 where meta+enter keyboard shortcut only worked from
the prompt textarea. Now works consistently from title, directory, and
prompt fields by moving keyboard handling to the modal level.

- Add global meta+enter handler at SessionLauncher modal level
- Remove input-specific keyboard handler from CommandInput textarea
- Update visual hints to show shortcut on Launch button
- Clean up footer hints for consistency

humanlayer-wui/src/components/CommandInput.tsx

@@ -1,4 +1,4 @@
-import React, { useRef, useEffect } from 'react'
+import { useRef, useEffect } from 'react'
 import { Button } from './ui/button'
 import { SearchInput } from './FuzzySearchInput'
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from './ui/select'
@@ -52,17 +52,6 @@ export default function CommandInput({
     }
   }, [])
 
-  const handleKeyDown = (e: React.KeyboardEvent) => {
-    if (e.key === 'Enter' && (e.metaKey || e.ctrlKey)) {
-      e.preventDefault()
-      onSubmit()
-    }
-
-    if (e.key === 'Escape') {
-      promptRef.current?.blur()
-    }
-  }
-
   const getPlatformKey = () => {
     return navigator.platform.includes('Mac') ? '⌘' : 'Ctrl'
   }
@@ -109,15 +98,13 @@ export default function CommandInput({
           ref={promptRef}
           value={value}
           onChange={e => onChange(e.target.value)}
-          onKeyDown={handleKeyDown}
           placeholder={placeholder}
           disabled={isLoading}
           autoComplete="off"
           spellCheck={false}
         />
         <p className="text-xs text-muted-foreground mt-1">
-          <kbd className="px-1 py-0.5 bg-muted/50 rounded">{getPlatformKey()}+Enter</kbd> to launch
-          session, <kbd className="ml-1 px-1 py-0.5 bg-muted/50 rounded">Enter</kbd> for new line
+          <kbd className="px-1 py-0.5 bg-muted/50 rounded">Enter</kbd> for new line
         </p>
 
         {isLoading && (
@@ -159,7 +146,10 @@ export default function CommandInput({
                 Launching...
               </>
             ) : (
-              'Launch Session'
+              <>
+                Launch Session
+                <kbd className="ml-2 px-1 py-0.5 text-xs bg-muted/50 rounded">{getPlatformKey()}+⏎</kbd>
+              </>
             )}
           </Button>
         </div>

humanlayer-wui/src/components/SessionLauncher.tsx

@@ -33,6 +33,21 @@ export function SessionLauncher({ isOpen, onClose }: SessionLauncherProps) {
     },
   )
 
+  useHotkeys(
+    'meta+enter, ctrl+enter',
+    e => {
+      e.preventDefault()
+      e.stopPropagation()
+      handleSubmit()
+    },
+    {
+      enabled: isOpen,
+      enableOnFormTags: true, // Critical: allows the shortcut to work in form inputs
+      scopes: SessionLauncherHotkeysScope,
+      preventDefault: true,
+    },
+  )
+
   // Only steal scope when actually open
   useStealHotkeyScope(SessionLauncherHotkeysScope, isOpen)
 
@@ -115,8 +130,7 @@ export function SessionLauncher({ isOpen, onClose }: SessionLauncherProps) {
 
                 <div className="flex items-center justify-end text-xs text-muted-foreground">
                   <div className="flex items-center space-x-2">
-                    <span>↵ Launch</span>
-                    <span>⌘K Close</span>
+                    <span>ESC Close</span>
                   </div>
                 </div>
               </>