chore(format): run prettier over src/ and scripts/

Formatting was configured but never enforced: `bun run format:check`
reported 199 unformatted files and ran in no workflow and in no git hook,
so .prettierrc (printWidth 100, trailing commas) described an intention
rather than the tree.

This is the one-time sweep that makes the check gateable. Whitespace and
token-reflow only -- no behavioural change: `bun run check` reports 0
errors and all 1053 frontend tests pass before and after.

Kept out of every other commit on purpose. A 199-file diff mixed with
real changes is unreviewable, and the next commit turns format:check
into a hard CI gate so this cannot silently accumulate again.

src/routes/sessions/+page.svelte

@@ -18,9 +18,7 @@
     <!-- Page Header -->
     <header class="mb-8">
       <h1 class="text-3xl font-bold text-white mb-2">Remote Sessions</h1>
-      <p class="text-gray-400">
-        Control playback on other Jellyfin clients
-      </p>
+      <p class="text-gray-400">Control playback on other Jellyfin clients</p>
     </header>
 
     <!-- Main Content -->
@@ -38,8 +36,15 @@
           </div>
         {:else}
           <!-- Placeholder when no session selected -->
-          <div class="flex flex-col items-center justify-center p-12 rounded-lg bg-[var(--color-surface)] text-center">
-            <svg class="w-20 h-20 text-gray-600 mb-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <div
+            class="flex flex-col items-center justify-center p-12 rounded-lg bg-[var(--color-surface)] text-center"
+          >
+            <svg
+              class="w-20 h-20 text-gray-600 mb-4"
+              fill="none"
+              stroke="currentColor"
+              viewBox="0 0 24 24"
+            >
               <path
                 stroke-linecap="round"
                 stroke-linejoin="round"
@@ -57,7 +62,9 @@
     </div>
 
     <!-- Help Text -->
-    <div class="mt-8 p-4 rounded-lg bg-[var(--color-surface)] border border-[var(--color-jellyfin)]/20">
+    <div
+      class="mt-8 p-4 rounded-lg bg-[var(--color-surface)] border border-[var(--color-jellyfin)]/20"
+    >
       <h3 class="text-sm font-semibold text-white mb-2">How to use Remote Sessions</h3>
       <ul class="text-sm text-gray-400 space-y-1 list-disc list-inside">
         <li>Start playing media on another Jellyfin client (TV, web browser, mobile app)</li>