feat(k1): complete primary acquisition lifecycle

apps/control-station/src/styles/observation.css

@@ -8,6 +8,15 @@
   gap: 0.45rem;
 }
 
+.scene-device-controls {
+  position: absolute;
+  z-index: 30;
+  top: 0.85rem;
+  left: 50%;
+  max-width: calc(100% - 9rem);
+  transform: translateX(-50%);
+}
+
 .scene-source-picker__trigger,
 .scene-source-control,
 .scene-focus-exit {

apps/control-station/src/styles/responsive.css

@@ -168,6 +168,11 @@
     left: 0.6rem;
   }
 
+  .scene-device-controls {
+    top: 0.6rem;
+    max-width: calc(100% - 8rem);
+  }
+
   .scene-adapter-note {
     right: 0.75rem;
     left: 0.75rem;