ensure mermaid styling

Signed-off-by: Will Killian <wkillian@nvidia.com>

Author: willkill07

docs/about/architecture.mdx

@@ -3,6 +3,8 @@ title: "Architecture"
 description: ""
 position: 2
 ---
+import { MermaidStyles } from "@/components/MermaidStyles";
+
 {/* SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 SPDX-License-Identifier: Apache-2.0 */}
 
@@ -13,6 +15,8 @@ subscribers, and exporters.
 
 This diagram connects the runtime pieces to the layers they inhabit.
 
+<MermaidStyles />
+
 ```mermaid
 flowchart TB
     subgraph AppLayer[Framework Integrations and Application Code]

docs/about/concepts/plugins.mdx

@@ -3,6 +3,8 @@ title: "Plugins"
 description: ""
 position: 3
 ---
+import { MermaidStyles } from "@/components/MermaidStyles";
+
 {/* SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 SPDX-License-Identifier: Apache-2.0 */}
 
@@ -57,6 +59,8 @@ behavior.
 Reporting provides structured diagnostics about what activated successfully and
 what did not.
 
+<MermaidStyles />
+
 ```mermaid
 flowchart TB
     subgraph Config[Plugin Configuration]

docs/about/concepts/subscribers.mdx

@@ -3,6 +3,8 @@ title: "Subscribers"
 description: ""
 position: 5
 ---
+import { MermaidStyles } from "@/components/MermaidStyles";
+
 {/* SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 SPDX-License-Identifier: Apache-2.0 */}
 
@@ -76,6 +78,8 @@ scopes, LLM calls, tool calls, or marks. NeMo Relay emits the canonical ATOF eve
 stream, and each subscriber chooses whether to consume the native event object,
 the canonical JSON helper, or an exporter-specific translation.
 
+<MermaidStyles />
+
 ```mermaid
 flowchart
     Host[Host Integration]

docs/about/ecosystem.mdx

@@ -3,6 +3,8 @@ title: "Ecosystem"
 description: ""
 position: 3
 ---
+import { MermaidStyles } from "@/components/MermaidStyles";
+
 {/* SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 SPDX-License-Identifier: Apache-2.0 */}
 
@@ -40,6 +42,8 @@ agent products. A framework asks, "What should the agent do next?" NeMo Relay
 asks, "When the agent does work, which scope owns it, which middleware applies,
 what events are emitted, and which subscribers can consume the result?"
 
+<MermaidStyles />
+
 ```mermaid
 flowchart TB
     User[User / Application]

docs/about/overview.mdx

@@ -3,6 +3,8 @@ title: "Overview"
 description: ""
 position: 1
 ---
+import { MermaidStyles } from "@/components/MermaidStyles";
+
 {/* SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 SPDX-License-Identifier: Apache-2.0 */}
 
@@ -81,6 +83,8 @@ relate to each other. Scopes define where work belongs, middleware registries
 define what runs around that work, and subscribers consume the lifecycle events
 that the core emits.
 
+<MermaidStyles />
+
 ```mermaid
 flowchart TB
     Plugin[Plugin]

docs/build-plugins/basic-guide.mdx

@@ -3,6 +3,8 @@ title: "Define a Plugin"
 description: ""
 position: 2
 ---
+import { MermaidStyles } from "@/components/MermaidStyles";
+
 {/* SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 SPDX-License-Identifier: Apache-2.0 */}
 
@@ -68,6 +70,8 @@ Start with one surface. Add a bundle only when one configuration document clearl
 
 The diagram below shows how plugin configuration turns into registered runtime behavior.
 
+<MermaidStyles />
+
 ```mermaid
 flowchart TB
     Kind[Plugin kind<br/>registered once]

docs/getting-started/agent-runtime-primer.mdx

@@ -3,6 +3,8 @@ title: "Agent Runtime Primer"
 description: ""
 position: 1
 ---
+import { MermaidStyles } from "@/components/MermaidStyles";
+
 {/* SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 SPDX-License-Identifier: Apache-2.0 */}
 
@@ -45,6 +47,8 @@ The core runtime model has five parts:
 
 The simplest mental model is:
 
+<MermaidStyles />
+
 ```mermaid
 flowchart LR
   boundary["App or framework boundary"]