Docs-Kits: Industry Core KIT — API Hub YAMLs missing + Operating Model PDF missing

### Affected source pages

- `./build/docs-kits/next/kits/industry-core-kit/software-development-view/parts/uniqueidpush/index.html:`
- `./build/docs-kits/next/kits/industry-core-kit/software-development-view/digital-twins/index.html:`
- `./build/docs-kits/next/kits/industry-core-kit/software-development-view/notifications/index.html:`
- `./build/docs-kits/next/kits/industry-core-kit/architecture-view/index.html:`

### Broken links (full URLs)

From `./build/docs-kits/next/kits/industry-core-kit/software-development-view/parts/uniqueidpush/index.html:`

- `[404] https://eclipse-tractusx.github.io/api-hub/eclipse-tractusx.github.io/2.1.0/unique-id-push_2-1-0.yaml`
- `[404] https://eclipse-tractusx.github.io/api-hub/eclipse-tractusx.github.io/2.0.0/unique-id-push.yaml`

From `./build/docs-kits/next/kits/industry-core-kit/software-development-view/digital-twins/index.html:`

- `[404] https://eclipse-tractusx.github.io/api-hub/eclipse-tractusx.github.io/2.1.0/unique-id-push_2-1-0.yaml`
- `[404] https://eclipse-tractusx.github.io/api-hub/eclipse-tractusx.github.io/2.0.0/unique-id-push.yaml`

From `./build/docs-kits/next/kits/industry-core-kit/software-development-view/notifications/index.html:`

- `[404] https://eclipse-tractusx.github.io/api-hub/eclipse-tractusx.github.io/3.0.0/example-digital-twin-event-api.yaml`

From `./build/docs-kits/next/kits/industry-core-kit/architecture-view/index.html:`

- `[404] https://catena-x.net/fileadmin/_online_media_/231006_Whitepaper_LifeCycleManagement.pdf`
- `[404] https://catena-x.net/fileadmin/_online_media_/CX_Operating_Modelv2.1_final.pdf`