Remove 'All documents' sub-item; Documents label now links to /apps/documents

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

frontend/src/components/Sidebar.tsx

@@ -140,36 +140,38 @@ export default function Sidebar() {
             <div className="mt-0.5 space-y-0.5">
               {/* Documents service */}
               <div>
-                <button
+                <div
-                  onClick={() => setDocsOpen((o) => !o)}
                   className={cn(
-                    "w-full flex items-center rounded-lg transition-colors text-sm",
+                    "flex items-center rounded-lg transition-colors text-sm",
-                    "pl-8 pr-3 py-1.5 gap-2",
                     isDocsRoute
                       ? "bg-primary/10 text-primary"
                       : "text-muted hover:bg-muted/20 hover:text-foreground"
                   )}
+                >
+                  <NavLink
+                    to="/apps/documents"
+                    end
+                    className="flex items-center gap-2 pl-8 pr-2 py-1.5 flex-1 min-w-0"
                   >
                     <FileText className="h-4 w-4 shrink-0" />
-                  <span className="flex-1 text-left whitespace-nowrap">Documents</span>
+                    <span className="whitespace-nowrap">Documents</span>
+                  </NavLink>
+                  <button
+                    onClick={() => setDocsOpen((o) => !o)}
+                    className="px-2 py-1.5 rounded-r-lg"
+                    aria-label={docsOpen ? "Collapse documents" : "Expand documents"}
+                  >
                     {docsOpen ? (
                       <ChevronDown className="h-3.5 w-3.5 shrink-0" />
                     ) : (
                       <ChevronRight className="h-3.5 w-3.5 shrink-0" />
                     )}
                   </button>
+                </div>
 
-                {/* Documents open link + categories */}
+                {/* Categories */}
                 {docsOpen && (
                   <div className="mt-0.5 space-y-0.5">
-                    <NavLink
-                      to="/apps/documents"
-                      end
-                      className={({ isActive }) => subSubItemClass(isActive)}
-                    >
-                      <span className="whitespace-nowrap">All documents</span>
-                    </NavLink>
-
                     {categories.map((cat) => (
                       <NavLink
                         key={cat.id}