fix(admin): resolve click-to-edit blur closure bug in profile form

Fixed critical bug where EditableField component would close after typing
first character. Root cause was stale closure variable in onBlur handler.

Changes:
- Replace inline onBlur with handleBlur() function that evaluates current
  value at blur time instead of using stale hasValue closure variable
- Fixes issue where typing first char would set hasValue=true in closure,
  causing immediate blur to close input

Impact: Users can now fill in profile fields without being kicked out

Related: BUILD #19

src/app/[locale]/admin/clubs/[club_id]/tabs/ClubProfileTab.tsx

@@ -36,13 +36,20 @@ function EditableField({
 }: EditableFieldProps) {
   const hasValue = value && value.trim().length > 0;
 
+  function handleBlur() {
+    // Only close edit mode if field has content
+    if (value && value.trim().length > 0) {
+      onToggleEdit();
+    }
+  }
+
   if (isEditing || !hasValue) {
     return (
       <input
         type={type}
         value={value}
         onChange={(e) => onChange(e.target.value)}
-        onBlur={() => hasValue && onToggleEdit()}
+        onBlur={handleBlur}
         autoFocus
         placeholder={placeholder}
         maxLength={maxLength}