docs(components): accuracy fixes from deep review (batch 4)

ManagementService (role table: queries any-auth, area mutations Designer;
audit contract exception), CLI (missing instance/api-key subcommands; server
JSON printed verbatim; bundle preview timeout), Transport (BundleFormatVersion
exact-match gate; dependency scan fields; three flushes), CentralUI
(/api/script-analysis endpoints; LoginLayout minimal; Health tile components),
TreeView (Topology no RevealNode; ContextMenu Site branch; InitiallyExpanded).

docs/components/TreeView.md

@@ -84,7 +84,14 @@ The Data Connections page binds a two-level Site → Connection tree with `Stora
         }
     </NodeContent>
     <ContextMenu Context="node">
-        @if (node.Kind == DcNodeKind.DataConnection)
+        @if (node.Kind == DcNodeKind.Site)
+        {
+            <button class="dropdown-item"
+                    @onclick="() => AddConnectionForSite(node.SiteId!.Value)">
+                Add Connection here
+            </button>
+        }
+        else
         {
             <button class="dropdown-item"
                     @onclick='() => NavigationManager.NavigateTo($"/design/connections/{node.Connection!.Id}/edit")'>
@@ -98,7 +105,7 @@ The Data Connections page binds a two-level Site → Connection tree with `Stora
         }
     </ContextMenu>
     <EmptyContent>
-        <span class="text-muted fst-italic">No sites configured.</span>
+        <span class="text-muted fst-italic">No sites configured. Add sites under Admin → Sites.</span>
     </EmptyContent>
 </TreeView>
 
@@ -148,10 +155,10 @@ All `[Parameter]` properties on `TreeView<TItem>`. Parameters marked **required*
 | `KeySelector` | `Func<TItem, object>` | — | **Required.** Unique stable key per node. Used for expansion tracking, selection, and `@key` diffing. |
 | `NodeContent` | `RenderFragment<TItem>` | — | **Required.** Render fragment for node label content. Receives the `TItem`; responsible for all domain-specific markup (glyphs, labels, badges). |
 | `EmptyContent` | `RenderFragment?` | `null` | Shown when `Items` is empty or null. |
-| `ContextMenu` | `RenderFragment<TItem>?` | `null` | Right-click menu content. Receives the right-clicked node. If null, right-click is not intercepted. If the fragment renders nothing for a node type, the browser default is used. |
+| `ContextMenu` | `RenderFragment<TItem>?` | `null` | Right-click menu content. Receives the right-clicked node. If null, right-click is not intercepted and the browser default is preserved. If non-null, `@oncontextmenu:preventDefault` is always active — the browser default is suppressed for every node regardless of whether the fragment renders any items for that node type. |
 | `IndentPx` | `int` | `24` | Pixels of left padding added per depth level via inline `style`. |
 | `ShowGuideLines` | `bool` | `true` | Adds `tv-guides` CSS class to the root `<ul>`, enabling the depth guide lines drawn by a `linear-gradient` pseudo-element in `TreeView.razor.css`. |
-| `InitiallyExpanded` | `Func<TItem, bool>?` | `null` | Predicate applied on first load (before storage is read) to expand matching nodes. Overridden by persisted state when `StorageKey` is set and storage contains prior data. |
+| `InitiallyExpanded` | `Func<TItem, bool>?` | `null` | Predicate used to expand matching nodes on first load. When `StorageKey` is null it is applied immediately (synchronously in `OnParametersSet`). When `StorageKey` is set, the predicate is applied only after the async storage read completes and returns empty — persisted state takes precedence and `InitiallyExpanded` is a fallback for first-ever loads. |
 | `StorageKey` | `string?` | `null` | Browser `sessionStorage` key for expansion persistence (`treeview:{StorageKey}`). When null, expansion is in-memory only. |
 | `Selectable` | `bool` | `false` | Enables click-to-select on node content. Clicking the expand toggle never changes selection. |
 | `SelectedKey` | `object?` | `null` | Currently selected node key for `Single` mode. Supports two-way binding (`@bind-SelectedKey`). |
@@ -180,7 +187,7 @@ The scoped stylesheet defines layout slots that `NodeContent` fragments should u
 - **`TemplateFolderTree`** (`Components/Shared/TemplateFolderTree.razor`) — a domain-specific wrapper around `TreeView<TemplateTreeNode>` that handles folder/template tree construction, text filtering, and `ExtraTemplateChildren` injection. Consumers that need the template hierarchy use `TemplateFolderTree`; they do not wire `TreeView<TemplateTreeNode>` directly.
 - **`TemplateTreeNode` / `TemplateTreeNodeKind`** (`Components/Shared/TemplateTreeNode.cs`) — the shared node model used by `TemplateFolderTree` and its callers. Folder keys are prefixed `f:`, template keys `t:`, composition keys `c:`.
 - **Data Connections page** (`Components/Pages/Design/DataConnections.razor`) — binds `TreeView<DcTreeNode>` directly with a local two-level record type.
-- **Topology page** (`Components/Pages/Deployment/Topology.razor`) — binds `TreeView` for the Site → Area → Instance hierarchy; calls `ExpandAll`, `CollapseAll`, and `RevealNode` via `@ref`.
+- **Topology page** (`Components/Pages/Deployment/Topology.razor`) — binds `TreeView` for the Site → Area → Instance hierarchy; calls `ExpandAll` and `CollapseAll` via `@ref`.
 - **Central UI component** — see [./CentralUI.md](./CentralUI.md) for the broader Blazor Server application context.
 
 ## Related Documentation