feat(desktop): global Cmd+K palette + UI consistency overhaul

Builds on the clarify/needs-input work with a cross-cutting pass to make
the desktop surfaces feel like one app.

- Global Cmd+K command palette (cmdk): nav, settings deep-links, async
  API-key / MCP-server / archived-session groups, reusable theme sub-page
  (light/dark groups, stays open on pick), loop nav, fuzzy match. Replaces
  per-page settings search.
- Shared SearchField: borderless, underline-on-focus, `field-sizing`
  auto-width. Unifies sessions sidebar, pages, overlays, command center,
  cron; drops bespoke OverlaySearchInput.
- Cron & Profiles converted to OverlayView; flat token-driven panels
  (no card-in-card / divider borders) matching command center.
- `r` refresh hotkey via useRefreshHotkey; drop the visible refresh buttons.
- Button text/textStrong link variants applied across settings & views;
  shared PAGE_INSET_X content gutters.
- Math/ascii loaders replace "Loading…" text placeholders; x-icon close
  over text "Close"; cursor-pointer at the dropdown/select primitive level.

apps/desktop/src/components/desktop-onboarding-overlay.tsx

@@ -4,6 +4,7 @@ import { useEffect, useMemo, useRef, useState } from 'react'
 
 import { ModelPickerDialog } from '@/components/model-picker'
 import { Button } from '@/components/ui/button'
+import { Codicon } from '@/components/ui/codicon'
 import { Input } from '@/components/ui/input'
 import { getGlobalModelOptions } from '@/hermes'
 import {
@@ -167,20 +168,20 @@ export function DesktopOnboardingOverlay({ enabled, onCompleted, requestGateway
 
   return (
     <div className="fixed inset-0 z-1300 flex items-center justify-center bg-(--ui-chat-surface-background) p-6">
-      <div className="w-full max-w-[45rem] overflow-hidden rounded-xl border border-(--ui-stroke-secondary) bg-(--ui-chat-bubble-background) shadow-sm">
+      <div className="relative w-full max-w-[45rem] overflow-hidden rounded-xl border border-(--ui-stroke-secondary) bg-(--ui-chat-bubble-background) shadow-sm">
         <Header />
+        {onboarding.manual ? (
+          <Button
+            aria-label="Close"
+            className="absolute right-3 top-3 z-10 text-(--ui-text-tertiary) hover:bg-(--chrome-action-hover) hover:text-foreground"
+            onClick={() => closeManualOnboarding()}
+            size="icon-sm"
+            variant="ghost"
+          >
+            <Codicon name="close" size="1rem" />
+          </Button>
+        ) : null}
         <div className="grid gap-3 p-5">
-          {onboarding.manual ? (
-            <div className="flex justify-end">
-              <button
-                className="text-xs font-medium text-muted-foreground transition hover:text-foreground"
-                onClick={() => closeManualOnboarding()}
-                type="button"
-              >
-                Close
-              </button>
-            </div>
-          ) : null}
           {reason ? <ReasonNotice reason={reason} /> : null}
           {ready ? showPicker ? <Picker ctx={ctx} /> : <FlowPanel ctx={ctx} flow={flow} /> : <Preparing boot={boot} />}
         </div>

apps/desktop/src/components/model-visibility-dialog.tsx

@@ -2,6 +2,7 @@ import { useStore } from '@nanostores/react'
 import { useQuery } from '@tanstack/react-query'
 import { useMemo, useState } from 'react'
 
+import { BrailleSpinner } from '@/components/ui/braille-spinner'
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog'
 import { Switch } from '@/components/ui/switch'
 import type { HermesGateway } from '@/hermes'
@@ -86,7 +87,11 @@ export function ModelVisibilityDialog({ gw, onOpenChange, onOpenProviders, open,
         <div className="max-h-[55vh] overflow-y-auto pb-1">
           {providers.length === 0 ? (
             <div className="px-3 py-5 text-center text-xs text-muted-foreground">
-              {modelOptions.isPending ? 'Loading…' : 'No authenticated providers.'}
+              {modelOptions.isPending ? (
+                <BrailleSpinner className="mx-auto text-sm" />
+              ) : (
+                'No authenticated providers.'
+              )}
             </div>
           ) : (
             providers.map(provider => {

apps/desktop/src/components/ui/button.tsx

@@ -20,10 +20,12 @@ const buttonVariants = cva(
         secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80',
         ghost: 'hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50',
         link: 'text-primary underline-offset-4 decoration-current/20 hover:underline',
-        // Boxless inline-text action (no bg/border). Reads as label text; add
-        // `font-semibold` and/or `underline` at the call site to emphasize the
-        // actionable word (e.g. a "Change" affordance next to muted copy).
-        text: 'text-muted-foreground underline-offset-4 hover:text-foreground hover:underline'
+        // Boxless inline-text action (no bg/border). Quiet by default — reads as
+        // muted label text, underlines on hover (e.g. "Cancel", "Clear").
+        text: 'text-muted-foreground underline-offset-4 hover:text-foreground hover:underline',
+        // Emphasized inline-text action: bold + always-underlined link. Use for
+        // the actionable affordance in a row ("Change", "Set", "Open logs", …).
+        textStrong: 'font-semibold text-muted-foreground underline underline-offset-4 hover:text-foreground'
       },
       size: {
         default: 'px-3 py-1.5 has-[>svg]:px-2.5',

apps/desktop/src/components/ui/dropdown-menu.tsx

@@ -110,7 +110,7 @@ function DropdownMenuItem({
   return (
     <DropdownMenuPrimitive.Item
       className={cn(
-        "relative flex cursor-default items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 data-[inset]:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5 [&_svg:not([class*='text-'])]:text-(--ui-text-tertiary) data-[variant=destructive]:*:[svg]:text-destructive!",
+        "relative flex cursor-pointer items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 data-[inset]:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5 [&_svg:not([class*='text-'])]:text-(--ui-text-tertiary) data-[variant=destructive]:*:[svg]:text-destructive!",
         className
       )}
       data-inset={inset}
@@ -131,7 +131,7 @@ function DropdownMenuCheckboxItem({
     <DropdownMenuPrimitive.CheckboxItem
       checked={checked}
       className={cn(
-        "relative flex cursor-default items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5",
+        "relative flex cursor-pointer items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5",
         className
       )}
       data-slot="dropdown-menu-checkbox-item"
@@ -157,7 +157,7 @@ function DropdownMenuRadioItem({
   return (
     <DropdownMenuPrimitive.RadioItem
       className={cn(
-        "relative flex cursor-default items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5",
+        "relative flex cursor-pointer items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5",
         className
       )}
       data-slot="dropdown-menu-radio-item"
@@ -226,7 +226,7 @@ function DropdownMenuSubTrigger({
   return (
     <DropdownMenuPrimitive.SubTrigger
       className={cn(
-        "flex cursor-default items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[inset]:pl-7 data-[state=open]:bg-(--ui-control-active-background) data-[state=open]:text-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5 [&_svg:not([class*='text-'])]:text-(--ui-text-tertiary)",
+        "flex cursor-pointer items-center gap-2 rounded-md px-2 py-1 text-xs outline-hidden select-none focus:bg-(--ui-control-active-background) focus:text-foreground data-[inset]:pl-7 data-[state=open]:bg-(--ui-control-active-background) data-[state=open]:text-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3.5 [&_svg:not([class*='text-'])]:text-(--ui-text-tertiary)",
         className
       )}
       data-inset={inset}

apps/desktop/src/components/ui/search-field.tsx

@@ -0,0 +1,78 @@
+import type { ReactNode, RefObject } from 'react'
+
+import { Button } from '@/components/ui/button'
+import { Codicon } from '@/components/ui/codicon'
+import { Loader2, Search } from '@/lib/icons'
+import { cn } from '@/lib/utils'
+
+interface SearchFieldProps {
+  placeholder: string
+  value: string
+  onChange: (value: string) => void
+  containerClassName?: string
+  inputClassName?: string
+  loading?: boolean
+  onClear?: () => void
+  inputRef?: RefObject<HTMLInputElement | null>
+  trailingAction?: ReactNode
+  'aria-label'?: string
+}
+
+/**
+ * Shared search field used everywhere (sessions sidebar, pages, overlays,
+ * command center, cron). No box — borderless until focus, then an underline.
+ * Width/placement come from `containerClassName`.
+ */
+export function SearchField({
+  placeholder,
+  value,
+  onChange,
+  containerClassName,
+  inputClassName,
+  loading = false,
+  onClear,
+  inputRef,
+  trailingAction,
+  'aria-label': ariaLabel
+}: SearchFieldProps) {
+  const clear = onClear ?? (() => onChange(''))
+
+  return (
+    <div
+      className={cn(
+        'inline-flex max-w-full items-center gap-1.5 border-b border-transparent px-0.5 transition-colors focus-within:border-(--ui-stroke-secondary)',
+        containerClassName
+      )}
+    >
+      <Search className="pointer-events-none size-3.5 shrink-0 text-muted-foreground/70" />
+      <input
+        aria-label={ariaLabel}
+        className={cn(
+          // `field-sizing: content` grows the input to fit the placeholder/typed
+          // text, capped by the container's max-width — no awkward empty space.
+          'h-7 max-w-full bg-transparent text-sm text-foreground [field-sizing:content] placeholder:text-muted-foreground focus:outline-none',
+          inputClassName
+        )}
+        onChange={event => onChange(event.target.value)}
+        placeholder={placeholder}
+        ref={inputRef}
+        type="text"
+        value={value}
+      />
+      {trailingAction}
+      {loading ? (
+        <Loader2 className="pointer-events-none size-3.5 shrink-0 animate-spin text-muted-foreground/70" />
+      ) : value ? (
+        <Button
+          aria-label="Clear search"
+          className="shrink-0 text-muted-foreground/85 hover:bg-accent/60 hover:text-foreground"
+          onClick={clear}
+          size="icon-xs"
+          variant="ghost"
+        >
+          <Codicon name="close" size="0.875rem" />
+        </Button>
+      ) : null}
+    </div>
+  )
+}

apps/desktop/src/components/ui/segmented-control.tsx

@@ -0,0 +1,51 @@
+import type { IconComponent } from '@/lib/icons'
+import { cn } from '@/lib/utils'
+
+export interface SegmentedControlOption<T extends string> {
+  id: T
+  label: string
+  icon?: IconComponent
+}
+
+interface SegmentedControlProps<T extends string> {
+  options: readonly SegmentedControlOption<T>[]
+  value: T
+  onChange: (id: T) => void
+  className?: string
+}
+
+/**
+ * Grouped one-row toggle used for small mutually-exclusive choices
+ * (color mode, tool-call display, usage period, etc.). Flat by design —
+ * no per-option borders, just a tinted track with a raised active pill.
+ */
+export function SegmentedControl<T extends string>({ options, value, onChange, className }: SegmentedControlProps<T>) {
+  return (
+    <div
+      className={cn(
+        'inline-grid w-fit auto-cols-fr grid-flow-col gap-0.5 rounded-[5px] bg-(--ui-bg-tertiary) p-0.5',
+        className
+      )}
+    >
+      {options.map(({ id, label, icon: Icon }) => {
+        const active = value === id
+
+        return (
+          <button
+            aria-pressed={active}
+            className={cn(
+              'flex items-center justify-center gap-1 rounded-[3px] px-2.5 py-0.5 text-[0.6875rem] font-medium transition-colors',
+              active ? 'bg-background text-foreground shadow-sm' : 'text-muted-foreground hover:text-foreground'
+            )}
+            key={id}
+            onClick={() => onChange(id)}
+            type="button"
+          >
+            {Icon && <Icon className="size-3" />}
+            {label}
+          </button>
+        )
+      })}
+    </div>
+  )
+}

apps/desktop/src/components/ui/select.tsx

@@ -73,7 +73,7 @@ function SelectItem({ className, children, ...props }: React.ComponentProps<type
   return (
     <SelectPrimitive.Item
       className={cn(
-        'relative flex w-full cursor-default items-center gap-2 rounded-sm py-1.5 pr-8 pl-2 text-xs outline-none select-none focus:bg-accent focus:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50',
+        'relative flex w-full cursor-pointer items-center gap-2 rounded-sm py-1.5 pr-8 pl-2 text-xs outline-none select-none focus:bg-accent focus:text-accent-foreground data-disabled:pointer-events-none data-disabled:cursor-default data-disabled:opacity-50',
         className
       )}
       data-slot="select-item"