v1.6.2: fix RichEditor auto-scroll and PDF offers multi-page header

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/admin/components/RichEditor.tsx

@@ -1,4 +1,4 @@
-import { useMemo, useRef, useCallback, useEffect } from "react";
+import { useMemo, useRef, useCallback, useLayoutEffect } from "react";
 import ReactQuill from "react-quill-new";
 import "react-quill-new/dist/quill.snow.css";
 
@@ -96,11 +96,14 @@ export default function RichEditor({
     [onChange],
   );
 
-  useEffect(() => {
+  useLayoutEffect(() => {
     if (!quillRef.current) return;
     const editor = quillRef.current.getEditor();
     editor.format("font", "tahoma");
     editor.format("size", "14px");
+    // Quill auto-focuses on mount with existing content, which scrolls
+    // the page to the editor. Blur to prevent unwanted scroll.
+    editor.blur();
   }, []);
 
   return (