Add Prettier and ESLint tooling (Refs #77)

src/routes/settings/+page.svelte

@@ -7,28 +7,46 @@
     let settings = $state<FleetSettings | null>(null);
     let loading = $state(true);
     let error = $state('');
-    onMount(() => { void loadSettings(); });
+    onMount(() => {
+        void loadSettings();
+    });
 
     async function loadSettings() {
-        loading = true; error = '';
+        loading = true;
+        error = '';
         try {
             const response = await fetch('/api/settings');
             if (!response.ok) throw new Error('Could not load fleet settings.');
             settings = validateFleetSettings(await response.json());
-        } catch (cause) { error = cause instanceof Error ? cause.message : 'Could not load fleet settings.'; }
-        finally { loading = false; }
+        } catch (cause) {
+            error = cause instanceof Error ? cause.message : 'Could not load fleet settings.';
+        } finally {
+            loading = false;
+        }
     }
 </script>
 
 <svelte:head><title>Settings · Electric Cherry</title></svelte:head>
 <section class="page">
-    <SectionHeader title="Settings" subtitle="Shared fleet limits and history retention. Changes apply without restarting." />
+    <SectionHeader
+        title="Settings"
+        subtitle="Shared fleet limits and history retention. Changes apply without restarting."
+    />
     {#if loading}<p role="status">Loading fleet settings…</p>
     {:else if settings}<SettingsEditor initial={settings} />
-    {:else}<div><p class="ui-error" role="alert">{error}</p><Button onclick={loadSettings}>Retry loading</Button></div>{/if}
+    {:else}<div>
+            <p class="ui-error" role="alert">{error}</p>
+            <Button onclick={loadSettings}>Retry loading</Button>
+        </div>{/if}
 </section>
 
 <style>
-    .page { display: grid; gap: var(--space-4); }
-    p { font-size: var(--text-sm); color: var(--text-secondary); }
+    .page {
+        display: grid;
+        gap: var(--space-4);
+    }
+    p {
+        font-size: var(--text-sm);
+        color: var(--text-secondary);
+    }
 </style>