fix(design): claim audit part 1b — whole-row switches, the field-family edge, state-layer hovers, icon links, reason-disabled controls, 24/44 targets (E28)

- F12 (owner: A): SwitchRow, the whole settings row toggles; a Config boolean toggles from its title
  and hint (a label pointed at the switch).
- F14 (owner: B): the form dropdown trigger wears the field frame (see-through, the >= 3:1 edge);
  labelled pills keep the faint edge and the accent-edge hover. DESIGN says so, with log rows.
- F6: ~15 bg-card / bg-border / opacity hovers onto the B3 state layer; a lint rule (HOVER_SWAP)
  refuses the swap, contract-tested.
- F10: bare 14px icon links onto IconLink / LinkButton; a local lint rule refuses a glyph-only <a>.
- F13: reason-disabled controls are aria-disabled (Users, Channels backfill, Discovery, Scheduler
  runs, Config tests); FocusSafeButton now swallows the click of a caller's aria-disabled; the
  Config tests say why while dirty (testDirty, HU/EN).
- F5/F11: every control measured live at 24 (mouse) and 44 (coarse) across every page; touch-target
  is a utility that wins over a caller's min-h-6; link variants carry it too; SegmentedToggle,
  Tabs, NavRail, menu rows, PriorityStepper, sliders, CheckRow, InnerInput, card links and the rest.
- F9: DismissibleChip's label reaches the chip's 24; the Combobox chips are DismissibleChips.
- F15: the "+N" / "More..." open state worded as it renders.

frontend/src/components/Scheduler.tsx

@@ -133,13 +133,17 @@ function JobRow({
   onSave,
   saving,
   onRun,
-  runDisabled,
+  paused,
+  runBusy,
 }: {
   job: SchedulerJob;
   onSave: (minutes: number) => void;
   saving: boolean;
   onRun: () => void;
-  runDisabled: boolean;
+  /** Unavailable with a reason (the hint says: resume first), so it stays focusable. */
+  paused: boolean;
+  /** A run-all in flight: transient, natively disabled. */
+  runBusy: boolean;
 }) {
   const { t } = useTranslation();
   // The box shows the server's value and holds a draft only while it is being edited, so there is
@@ -226,7 +230,7 @@ function JobRow({
               <Pressable
                 ref={triggerRef}
                 onClick={() => setDraft(String(job.interval_minutes))}
-                className="group text-muted font-normal hover:text-accent inline-flex items-center gap-1 transition"
+                className="group text-muted font-normal hover:text-accent inline-flex min-h-6 items-center gap-1 transition touch-target"
               >
                 · {t("scheduler.everyMin", { count: job.interval_minutes })}
                 <Pencil className="w-3 h-3 reveal transition" />
@@ -260,10 +264,14 @@ function JobRow({
           "—"
         )}
       </div>
-      <Tooltip hint={t("scheduler.runNow")}>
+      <Tooltip
+        hint={paused ? t("scheduler.runAllPausedHint") : t("scheduler.runNow")}
+        always={paused}
+      >
         <IconButton
           onClick={onRun}
-          disabled={job.running || runDisabled}
+          aria-disabled={paused}
+          disabled={job.running || runBusy}
           label={t("scheduler.runNow")}
           noTitle
         >
@@ -515,13 +523,17 @@ export default function Scheduler() {
           </div>
         </div>
         <div className="flex-1" />
-        <Tooltip hint={data.paused ? t("scheduler.runAllPausedHint") : t("scheduler.runAllHint")}>
+        <Tooltip
+          hint={data.paused ? t("scheduler.runAllPausedHint") : t("scheduler.runAllHint")}
+          always={data.paused}
+        >
           <Button
             variant="glass"
             size="sm"
             icon={<Play />}
             onClick={() => runAllMut.mutate()}
-            disabled={runAllMut.isPending || data.paused}
+            aria-disabled={data.paused}
+            disabled={runAllMut.isPending}
           >
             {t("scheduler.runAll")}
           </Button>
@@ -579,7 +591,8 @@ export default function Scheduler() {
               saving={intervalMut.isPending}
               onSave={(minutes) => intervalMut.mutate({ jobId: job.id, minutes })}
               onRun={() => runMut.mutate(job.id)}
-              runDisabled={data.paused || runAllMut.isPending}
+              paused={data.paused}
+              runBusy={runAllMut.isPending}
             />
           ))}
         </div>