Live-update the account page status block after sync

Mirrors the dashboard's row update: "Sync now" on the account page
refreshes the status block in place and shows a toast, instead of
navigating to a separate result page.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/web/templates/account/detail.html

@@ -6,7 +6,8 @@
 <h1>{{ user.name }}</h1>
 <div class="page-actions">
     <a class="btn secondary" href="/account/edit">Edit</a>
-    <form method="post" action="/account/sync" class="inline-form">
+    <form method="post" action="/account/sync" class="inline-form"
+          hx-post="/account/sync" hx-target="#account-status" hx-swap="outerHTML" hx-disabled-elt="find button">
         <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
         <button type="submit">Sync now</button>
     </form>
@@ -17,19 +18,7 @@
 </div>
 
 <div class="card">
-    <dl class="info-grid">
-        <dt>Status</dt>
-        <dd><span class="badge badge-{{ user.health_state.value }}">{{ user.health_state.value.replace("_", " ") }}</span></dd>
-
-        <dt>MyWhoosh state</dt>
-        <dd>{{ user.mywhoosh_state }}</dd>
-
-        <dt>Garmin state</dt>
-        <dd>{{ user.garmin_state }}</dd>
-
-        <dt>Action reason</dt>
-        <dd>{{ user.action_reason or "-" }}</dd>
-    </dl>
+    {% include "fragments/account_status.html" %}
 </div>
 
 {% if user.action_reason == "mywhoosh_device_conflict" %}