fix: constrain logo size in docs sidebar header

The 500x500px logo was rendering at full sidebar width (~248px).
Constrained to height:40px with width:auto for a clean docs-site header.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: bradygaster

docs/assets/style.css

@@ -17,7 +17,7 @@ body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Noto Sans,Helveti
 .sidebar-header { padding:20px 16px 12px; border-bottom:1px solid var(--border);
   display:flex; align-items:center; justify-content:space-between; }
 .sidebar-header .logo { display:flex; align-items:center; text-decoration:none; }
-.sidebar-logo-img { max-width:100%; height:auto; padding:4px 0; }
+.sidebar-logo-img { height:40px; width:auto; padding:4px 0; }
 .sidebar-close { display:none; background:none; border:none; font-size:20px; color:var(--muted); cursor:pointer; }
 .sidebar-content { padding:12px 0; flex:1; overflow-y:auto; }
 .sidebar-content>a, .nav-section a { display:block; padding:6px 16px; color:var(--muted);