Remove add-name task and fix HTML margin note spacing

LaTeX:
- Remove "add your name to Lab members" TASK (now handled by onboarding bot)

HTML margin notes:
- Fix margin notes inside <dd> elements causing large gaps in left text
  and overlapping when multiple notes are adjacent
- toc.js repositions dd margin notes to article level on window load,
  using absolute positioning at their original vertical offset
- lab-manual.css adjusts margin-right/width for dl-nested notes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jeremymanning

lab-manual.css

@@ -153,7 +153,10 @@ dd dl {
   width: 100%;
 }
 
-/* Margin notes inside definition lists need adjusted positioning */
+/* Margin notes inside definition lists need wider offset since
+   dd elements are narrower than article-level paragraphs.
+   These notes are repositioned by JavaScript (see toc.js) to
+   prevent them from expanding dd height or overlapping. */
 dl .marginnote, dl .sidenote {
   margin-right: -80%;
   width: 40%;

lab_manual.pdf

@@ -174,23 +174,7 @@ \chapter{Introduction}\label{ch:intro} % Adding an asterisk leaves out this chap
 
 \newthought{Who is this lab manual for?}
 
-\noindent \marginnote{\texttt{TASK:} Upon reading through this lab
-  manual for the first time, please update the document to include
-  your name in the \hyperref[sec:curr_members]{Lab members}
-  section. Importantly, be sure to fork the
-  \href{https://github.com/ContextLab/lab-manual}{GitHub repository},
-  make your edit on your personal fork, and submit a pull request with
-  your update. Be sure to recompile the \texttt{.tex} file after you
-  make your changes so that the \texttt{.pdf} file is updated and the
-  \LaTeX~compiler catches any errors you may have made. Also, feel
-  free to make any additional changes you think would benefit other
-  current or future lab members.  You could correct a typo, clarify
-  something that’s unclear, add a comment or reference to a useful
-  tool, etc.  If you'd like to get feedback on your idea first, create
-  a \href{https://github.com/ContextLab/lab-manual/issues}{GitHub
-    issue} describing your proposed change; you can use the existing
-  issues to help decide what to focus on for your own edits if you'd
-  like.}  Every new lab member should read the latest version of this
+\noindent Every new lab member should read the latest version of this
 lab manual in detail and reference it later as needed.  Periodically
 throughout the document, you will see margin notes with listed
 \texttt{TASK} items.  Completing your read through entails: (a)

lab_manual.tex

@@ -4,7 +4,7 @@ document.addEventListener('DOMContentLoaded', function() {
   if (!toc) return;
 
   // Clear existing TOC items (tex4ht generates broken links)
-  toc.innerHTML = '';
+  while (toc.firstChild) toc.removeChild(toc.firstChild);
 
   var headings = document.querySelectorAll('h2.chapterHead');
   headings.forEach(function(h, index) {
@@ -26,3 +26,34 @@ document.addEventListener('DOMContentLoaded', function() {
     toc.appendChild(li);
   });
 });
+
+// Fix margin notes inside definition lists.
+// Floated margin notes inside dd elements expand the dd height,
+// causing large gaps in the left-side text. We reposition them
+// as absolutely positioned elements relative to the article.
+// Runs on window load (after layout) so getBoundingClientRect is accurate.
+window.addEventListener('load', function() {
+  var article = document.querySelector('article');
+  if (!article) return;
+
+  article.style.position = 'relative';
+
+  var ddNotes = document.querySelectorAll('dd .marginnote, dd .sidenote');
+  var articleRect = article.getBoundingClientRect();
+
+  ddNotes.forEach(function(note) {
+    var parent = note.parentElement;
+    var anchorRect = parent.getBoundingClientRect();
+    var topOffset = anchorRect.top - articleRect.top;
+
+    note.style.position = 'absolute';
+    note.style.top = topOffset + 'px';
+    note.style.right = '0';
+    note.style.width = '25%';
+    note.style.marginRight = '0';
+    note.style.float = 'none';
+    note.style.clear = 'none';
+
+    article.appendChild(note);
+  });
+});