fix: default to max dark frame on load to avoid white flash

lib/client.js

@@ -764,8 +764,10 @@ var SkinPresenter = class {
   portrait;
   preloads;
   enabled = true;
-  frame = 0;
-  pendingFrame = 0;
+  // Default to the max frame so the first paint after load is the dark shell;
+  // starting at 0 flashed the light palette before the directory resolved.
+  frame = PREVIEW_MAX_FRAME;
+  pendingFrame = PREVIEW_MAX_FRAME;
   raf = 0;
   disposed = false;
   unsubscribe;
@@ -951,7 +953,7 @@ function LiangEffortSlider({ directory, load, select, presenter, scope }) {
     reasoning?.selection.reasoningEffort,
     reasoning?.defaultEffort
   );
-  const committedFrame = committedIndex < 0 ? 0 : frameForEffort(committedIndex, efforts.length);
+  const committedFrame = committedIndex < 0 ? PREVIEW_MAX_FRAME : frameForEffort(committedIndex, efforts.length);
   const [frame, setFrame] = (0, import_react.useState)(committedFrame);
   const [pending, setPending] = (0, import_react.useState)(false);
   const [failed, setFailed] = (0, import_react.useState)(false);