feat(settings): extract <SettingsCardHeader> primitive

Every Settings card paints the same shape — icon + title + optional
status surface + optional muted description — but the codebase
carried five different `flex-*` permutations across
`account-section.tsx`, `integrations-section.tsx`,
`notification-status-card.tsx`, the three notification channel
cards, `api-section.tsx`, and `advanced-section.tsx`. The mechanical
drift table in `.planning/round-v1433-audit-settings.md` §2.5
itemised the spread.

Consolidate the contract into `_card-header.tsx`: icon left, title
right of it, status slot lives top-right and falls below the title
on `<sm`, description sits muted below the title row. Call sites
keep ownership of their body forms and action footers.

First three call sites switched: `telegram-card.tsx`,
`ntfy-card.tsx`, `web-push-card.tsx`. The remaining cards
(`account-section.tsx`, `integrations-section.tsx`, `api-section.tsx`,
`advanced-section.tsx`, `notification-status-card.tsx`) are wired
in a follow-up — the primitive is now available without forcing
every consumer to migrate in one commit.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/settings/_card-header.tsx

@@ -0,0 +1,78 @@
+"use client";
+
+/**
+ * `<SettingsCardHeader>` — v1.4.33 IW4 polish primitive.
+ *
+ * Every Settings card paints the same shape: a primary icon, a title,
+ * an optional status surface (badge / pill / inline switch), and an
+ * optional short description below the title. Before this primitive
+ * the codebase carried five different `flex flex-wrap items-start
+ * justify-between` permutations across `account-section.tsx`,
+ * `integrations-section.tsx`, `notification-status-card.tsx`,
+ * `telegram-card.tsx`, `ntfy-card.tsx`, `web-push-card.tsx`,
+ * `api-section.tsx`, and `advanced-section.tsx`. The audit's mechanical
+ * drift report (`.planning/round-v1433-audit-settings.md` §2.5) listed
+ * one card with `mb-4 flex items-center gap-2`, the next with
+ * `flex flex-col gap-3 sm:flex-row sm:justify-between`, another with
+ * `flex flex-wrap items-start justify-between`, etc.
+ *
+ * The primitive consolidates the contract:
+ *   - Icon left, title right of it (`gap-2` between them).
+ *   - Optional status slot lives top-right; on `<sm` it falls below the
+ *     title block so the action surface keeps its 44 px tap target.
+ *   - Description is muted text, sits below the title row.
+ *
+ * Call sites can still wire their own action surfaces inside the body
+ * of the card — the primitive only owns the *header* slice, not the
+ * footer or the form rows.
+ */
+
+import * as React from "react";
+import type { LucideIcon } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+export interface SettingsCardHeaderProps {
+  /** Lucide icon component; rendered as `text-primary h-5 w-5`. */
+  icon: LucideIcon;
+  /** Card title — rendered as `<h2 class="text-lg font-semibold">`. */
+  title: string;
+  /** Optional id for the `<h2>` so an outer `aria-labelledby`
+   *  attribute on the card itself can reference it. */
+  titleId?: string;
+  /** Optional short description rendered as muted text below the
+   *  title row. Either a string (paragraph) or arbitrary node
+   *  (links, badges, etc.). */
+  description?: React.ReactNode;
+  /** Optional right-aligned status surface — typically an
+   *  `<IntegrationStatusPill>` or a wrapper around badges. */
+  status?: React.ReactNode;
+  /** Optional extra classes applied to the outer wrapper. */
+  className?: string;
+}
+
+export function SettingsCardHeader({
+  icon: Icon,
+  title,
+  titleId,
+  description,
+  status,
+  className,
+}: SettingsCardHeaderProps) {
+  return (
+    <header className={cn("space-y-1", className)}>
+      <div className="flex flex-wrap items-start justify-between gap-2">
+        <div className="flex items-center gap-2">
+          <Icon className="text-primary h-5 w-5 shrink-0" aria-hidden="true" />
+          <h2 id={titleId} className="text-lg font-semibold">
+            {title}
+          </h2>
+        </div>
+        {status ? <div className="flex shrink-0 items-center gap-2">{status}</div> : null}
+      </div>
+      {description ? (
+        <p className="text-muted-foreground text-xs">{description}</p>
+      ) : null}
+    </header>
+  );
+}

src/components/settings/ntfy-card.tsx

@@ -9,6 +9,7 @@ import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { Switch } from "@/components/ui/switch";
 import { PasswordInput } from "@/components/ui/password-input";
+import { SettingsCardHeader } from "@/components/settings/_card-header";
 import { useTranslations } from "@/lib/i18n/context";
 
 interface NtfySettings {
@@ -100,16 +101,11 @@ export function NtfyCard({ isAuthenticated }: { isAuthenticated: boolean }) {
 
   return (
     <div className="bg-card border-border rounded-xl border p-6">
-      {/* v1.4.33 — drop the per-card status badge pair; the channel
-          pill in `<NotificationStatusCard>` above already shows
-          live ntfy state. See `telegram-card.tsx` for the same fix. */}
-      <div className="flex items-center gap-2">
-        <Bell className="text-primary h-5 w-5" />
-        <h2 className="text-lg font-semibold">{t("settings.ntfy")}</h2>
-      </div>
-      <p className="text-muted-foreground mt-1 text-xs">
-        {t("settings.ntfyDescription")}
-      </p>
+      <SettingsCardHeader
+        icon={Bell}
+        title={t("settings.ntfy")}
+        description={t("settings.ntfyDescription")}
+      />
 
       <div className="mt-4 space-y-4">
         <div className="flex items-center justify-between">

src/components/settings/telegram-card.tsx

@@ -9,6 +9,7 @@ import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { Switch } from "@/components/ui/switch";
 import { PasswordInput } from "@/components/ui/password-input";
+import { SettingsCardHeader } from "@/components/settings/_card-header";
 import { useTranslations } from "@/lib/i18n/context";
 
 interface TelegramSettings {
@@ -105,19 +106,11 @@ export function TelegramCard({
 
   return (
     <div className="bg-card border-border rounded-xl border p-6">
-      {/* v1.4.33 — drop the per-card status badge pair. The
-          `<NotificationStatusCard>` above already paints the live
-          channel pill for Telegram; surfacing the same fact a
-          second time inside this card produced overlapping status
-          surfaces (page header + card pill + dual Badge + the
-          enable Switch) for one bit of state. */}
-      <div className="flex items-center gap-2">
-        <MessageCircle className="text-primary h-5 w-5" />
-        <h2 className="text-lg font-semibold">{t("settings.telegram")}</h2>
-      </div>
-      <p className="text-muted-foreground mt-1 text-xs">
-        {t("settings.telegramDescription")}
-      </p>
+      <SettingsCardHeader
+        icon={MessageCircle}
+        title={t("settings.telegram")}
+        description={t("settings.telegramDescription")}
+      />
 
       <div className="mt-4 space-y-4">
         <form onSubmit={handleSave} className="space-y-4">

src/components/settings/web-push-card.tsx

@@ -5,6 +5,7 @@ import { BellRing, Loader2 } from "lucide-react";
 
 import { Button } from "@/components/ui/button";
 import { TestConnectionButton } from "@/components/settings/test-connection-button";
+import { SettingsCardHeader } from "@/components/settings/_card-header";
 import { useTranslations } from "@/lib/i18n/context";
 
 /** Convert a URL-safe base64 string to an ArrayBuffer (for VAPID key). */
@@ -156,17 +157,11 @@ export function WebPushCard() {
 
   return (
     <div className="bg-card border-border rounded-xl border p-6">
-      {/* v1.4.33 — drop the per-card status badge pair; the channel
-          pill in `<NotificationStatusCard>` above already shows
-          live Web Push state. See `telegram-card.tsx` for the same
-          fix. */}
-      <div className="flex items-center gap-2">
-        <BellRing className="text-primary h-5 w-5" />
-        <h2 className="text-lg font-semibold">{t("settings.webPush")}</h2>
-      </div>
-      <p className="text-muted-foreground mt-1 text-xs">
-        {t("settings.webPushDescription")}
-      </p>
+      <SettingsCardHeader
+        icon={BellRing}
+        title={t("settings.webPush")}
+        description={t("settings.webPushDescription")}
+      />
 
       <div className="mt-4 space-y-3">
         {loading ? (