style(desktop): unify Input/Textarea/SelectTrigger on shared controlVariants

Mirror the buttonVariants exercise for non-composer form controls: add a
single controlVariants source of truth (2.5px radius, 12px text,
padding-driven sizing, chrome via desktop-input-chrome) and consume it from
Input, Textarea, and SelectTrigger. Drop per-call radius/height/font
overrides that fought the shared look.

apps/desktop/src/app/cron/index.tsx

@@ -768,7 +768,7 @@ function CronEditorDialog({
           <div className="grid items-start gap-4 sm:grid-cols-2">
             <Field htmlFor="cron-frequency" label="Frequency">
               <Select onValueChange={handleSchedulePresetChange} value={schedulePreset}>
-                <SelectTrigger className="h-9 rounded-md" id="cron-frequency">
+                <SelectTrigger id="cron-frequency">
                   <SelectValue />
                 </SelectTrigger>
                 <SelectContent>
@@ -783,7 +783,7 @@ function CronEditorDialog({
 
             <Field htmlFor="cron-deliver" label="Deliver to">
               <Select onValueChange={setDeliver} value={deliver}>
-                <SelectTrigger className="h-9 rounded-md" id="cron-deliver">
+                <SelectTrigger id="cron-deliver">
                   <SelectValue />
                 </SelectTrigger>
                 <SelectContent>

apps/desktop/src/app/messaging/index.tsx

@@ -651,7 +651,7 @@ function MessagingField({
       </div>
       <div className="flex items-center gap-2">
         <Input
-          className="h-9 rounded-lg font-mono text-sm"
+          className="font-mono"
           id={`messaging-field-${field.key}`}
           onChange={event => onEdit(field.key, event.target.value)}
           placeholder={field.is_set ? field.redacted_value || 'Replace current value' : copy.placeholder}

apps/desktop/src/app/overlays/overlay-search-input.tsx

@@ -37,7 +37,7 @@ export function OverlaySearchInput({
       <Search className="pointer-events-none absolute left-3 top-1/2 z-1 size-3.5 -translate-y-1/2 text-muted-foreground/80" />
       <Input
         className={cn(
-          'relative z-0 h-8 rounded-lg py-2 pl-8 text-[length:var(--conversation-text-font-size)]',
+          'relative z-0 py-2 pl-8 text-[length:var(--conversation-text-font-size)]',
           hasTrailing || loading || value ? 'pr-16' : 'pr-8',
           inputClassName
         )}
@@ -71,7 +71,7 @@ export function PageSearchInput(props: OverlaySearchInputProps) {
     <OverlaySearchInput
       {...props}
       containerClassName={cn('mx-auto w-[min(36rem,calc(100%-2rem))] min-w-0', props.containerClassName)}
-      inputClassName={cn('h-8 rounded-lg py-2 pl-8', props.inputClassName)}
+      inputClassName={cn('py-2 pl-8', props.inputClassName)}
     />
   )
 }

apps/desktop/src/app/settings/config-settings.tsx

@@ -89,7 +89,7 @@ function ConfigField({
   if (schema.type === 'number') {
     return row(
       <Input
-        className={cn('h-8', CONTROL_TEXT)}
+        className={CONTROL_TEXT}
         onChange={e => {
           const raw = e.target.value
           const n = raw === '' ? 0 : Number(raw)
@@ -108,7 +108,7 @@ function ConfigField({
   if (schema.type === 'list') {
     return row(
       <Input
-        className={cn('h-8', CONTROL_TEXT)}
+        className={CONTROL_TEXT}
         onChange={e =>
           onChange(
             e.target.value
@@ -154,7 +154,7 @@ function ConfigField({
       />
     ) : (
       <Input
-        className={cn('h-8', CONTROL_TEXT)}
+        className={CONTROL_TEXT}
         onChange={e => onChange(e.target.value)}
         placeholder="Not set"
         value={String(value ?? '')}

apps/desktop/src/app/settings/constants.ts

@@ -22,7 +22,7 @@ interface ProviderPrefix {
 }
 
 export const EMPTY_SELECT_VALUE = '__hermes_empty__'
-export const CONTROL_TEXT = 'text-[0.8125rem]'
+export const CONTROL_TEXT = 'text-xs'
 
 export const PROVIDER_GROUPS: ProviderPrefix[] = [
   { prefix: 'NOUS_', name: 'Nous Portal', priority: 0 },