Replace architecture diagram with new global/docker schemas

docs/architecture.md

@@ -2,7 +2,7 @@
 
 ## Overview
 
-![Docling Studio architecture](images/archi.png){ width="700" }
+![Docling Studio architecture](images/global.png){ width="700" }
 
 Two services communicating via REST. The frontend is a Vue 3 SPA served by Nginx in production. The backend is a FastAPI app that wraps Docling's document conversion engine.
 

docs/getting-started.md

@@ -7,6 +7,8 @@ Docling Studio ships two Docker image variants:
 | **remote** | `latest-remote` | ~270 MB | Lightweight — delegates to an external [Docling Serve](https://github.com/DS4SD/docling-serve) instance |
 | **local** | `latest-local` | ~1.9 GB | Full — runs Docling in-process, CPU-only (downloads ML models on first run) |
 
+![Docker architecture](images/docker.png){ width="600" }
+
 ## Docker — remote mode (fastest)
 
 ```bash

docs/index.md

@@ -4,7 +4,7 @@ A visual document analysis studio powered by [Docling](https://github.com/DS4SD/
 
 Upload a PDF, configure the extraction pipeline, and visualize the results — text, tables, images, formulas, bounding boxes — all from your browser.
 
-![Docling Studio architecture](images/archi.png){ width="600" }
+![Docling Studio architecture](images/global.png){ width="600" }
 
 ![Docling Studio — Execution Result](screenshots/DS-execution-result.png)