minor: heavily simplify server and app content. unify styling (#4)

Co-authored-by: Madison Grubb <madison@elastiflow.com>
Reviewed-on: #4

app/pages/share-live.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="flex min-h-[80vh] flex-col items-center justify-center p-6">
-    <div class="w-full max-w-md rounded-lg border border-kestrel-border bg-kestrel-surface p-6 shadow-glow [box-shadow:0_0_24px_-6px_rgba(34,201,201,0.2)]">
-      <h2 class="mb-2 text-lg font-semibold tracking-wide text-kestrel-text [text-shadow:0_0_8px_rgba(34,201,201,0.25)]">
+    <div class="kestrel-card-modal w-full max-w-md p-6">
+      <h2 class="kestrel-section-heading mb-2">
         Share live (camera + location)
       </h2>
       <p class="mb-4 text-sm text-kestrel-muted">
@@ -55,7 +55,7 @@
       <!-- Local preview -->
       <div
         v-if="stream && videoRef"
-        class="relative mb-4 aspect-video w-full overflow-hidden rounded border border-kestrel-border bg-black"
+        class="kestrel-video-frame mb-4"
       >
         <video
           ref="videoRef"