fix: improve media field placeholder language to emphasize uploading

Replace misleading 'URL' placeholder on media fields with action-oriented
text like 'Upload audio or paste direct file link' per preset type. Update
upload button tooltips to say 'Choose file to upload'. Update Music preset
description to say 'Upload' consistently. Each preset now carries its own
valuePlaceholder through the form schema to the row component.

src/pages/ProfileSettings.tsx

@@ -97,13 +97,13 @@ const FIELD_PRESETS: FieldPreset[] = [
   {
     id: 'music',
     label: 'Music',
-    description: 'Add a song or audio clip',
+    description: 'Upload a song or audio clip',
     icon: Music,
     defaultLabel: '\u{1F3B6}',
     type: 'media',
     accept: 'audio/*',
     formatHint: 'MP3, OGG, WAV, FLAC, AAC, M4A, Opus',
-    valuePlaceholder: 'Audio URL',
+    valuePlaceholder: 'Upload audio or paste direct file link',
   },
   {
     id: 'photo',
@@ -114,7 +114,7 @@ const FIELD_PRESETS: FieldPreset[] = [
     type: 'media',
     accept: 'image/*',
     formatHint: 'JPG, PNG, GIF, WebP, SVG, AVIF',
-    valuePlaceholder: 'Image URL',
+    valuePlaceholder: 'Upload image or paste direct file link',
   },
   {
     id: 'video',
@@ -125,7 +125,7 @@ const FIELD_PRESETS: FieldPreset[] = [
     type: 'media',
     accept: 'video/*',
     formatHint: 'MP4, WebM, MOV',
-    valuePlaceholder: 'Video URL',
+    valuePlaceholder: 'Upload video or paste direct file link',
   },
   {
     id: 'email',
@@ -204,6 +204,8 @@ const formSchema = n.metadata().extend({
     type: z.enum(['text', 'wallet', 'media']),
     /** Client-side only — file accept filter for the file picker (not persisted). */
     accept: z.string().optional(),
+    /** Client-side only — placeholder text for the value input (not persisted). */
+    placeholder: z.string().optional(),
   })).optional(),
   shape: z.string().optional(),
 });
@@ -224,6 +226,7 @@ interface SortableFieldRowProps {
   index: number;
   type: 'text' | 'wallet' | 'media';
   accept?: string;
+  valuePlaceholder?: string;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   control: any;
   onRemove: () => void;
@@ -231,7 +234,7 @@ interface SortableFieldRowProps {
   onTickerChange: (ticker: string) => void;
 }
 
-function SortableFieldRow({ id, index, type, accept, control, onRemove, onMediaPick, onTickerChange }: SortableFieldRowProps) {
+function SortableFieldRow({ id, index, type, accept, valuePlaceholder, control, onRemove, onMediaPick, onTickerChange }: SortableFieldRowProps) {
   const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({ id });
   const style = { transform: CSS.Transform.toString(transform), transition };
 
@@ -300,7 +303,7 @@ function SortableFieldRow({ id, index, type, accept, control, onRemove, onMediaP
             <FormItem>
               <div className="flex gap-1.5">
                 <FormControl>
-                  <Input placeholder="URL" {...field} className="h-9 flex-1 min-w-0" readOnly={false} />
+                  <Input placeholder={valuePlaceholder || 'Upload file or paste direct file link'} {...field} className="h-9 flex-1 min-w-0" readOnly={false} />
                 </FormControl>
                 <Tooltip>
                   <TooltipTrigger asChild>
@@ -316,9 +319,9 @@ function SortableFieldRow({ id, index, type, accept, control, onRemove, onMediaP
                   </TooltipTrigger>
                   <TooltipContent side="top" className="text-xs max-w-52">
                     {formatHint ? (
-                      <span>Upload file<br /><span className="text-muted-foreground">{formatHint}</span></span>
+                      <span>Choose file to upload<br /><span className="text-muted-foreground">{formatHint}</span></span>
                     ) : (
-                      <span>Upload a media file</span>
+                      <span>Choose a media file to upload</span>
                     )}
                   </TooltipContent>
                 </Tooltip>
@@ -564,6 +567,7 @@ export function ProfileSettings() {
       value: '',
       type: preset.type,
       accept: preset.accept,
+      placeholder: preset.valuePlaceholder,
     });
   };
 
@@ -732,6 +736,7 @@ export function ProfileSettings() {
                       index={index}
                       type={form.watch(`fields.${index}.type`) ?? 'text'}
                       accept={form.watch(`fields.${index}.accept`)}
+                      valuePlaceholder={form.watch(`fields.${index}.placeholder`)}
                       control={form.control}
                       onRemove={() => remove(index)}
                       onMediaPick={() => handleMediaPick(index)}