Update install examples to Server 2.5.19

[rmcdaniel]

Changes

Advance the shared Server catalog entry to published 2.5.19. The generated install examples across all eight documentation languages select the current image.

Server 2.5.19 packages Workflow 2.5.9's default connection filtering fix. Its source, image and Helm publication checks pass. Both registries have the same index, both platform manifest/config identities verify, and the actual published amd64 image contains all 918 qualified production files in both package copies plus the unchanged package manifest. The actual autoloaded selector belongs to the installed package. All four published Compose profiles pass.

See Server #390 and Workflow #751 for the release and affected consumer checks. The published SDK lifecycle suite is running against the exact digest.

Website verification

Run normal site checks, then verify main and Pages deployment and read back the live catalog and quickstart commands in all eight languages.

[rmcdaniel]

Reviewed a2421f727e73a96a217fcf38c71f49ed73a4cec5. Only the Server catalog value advances to published 2.5.19. Its official publication, both registry identities, actual installed source audit, all 12 published SDK lifecycle cells and four Compose profiles pass.

All four normal website checks pass, including the executable documentation build and links. Merge this head, verify the exact tree and Pages deployment, then read back the live catalog and eight localized quickstarts.

[rmcdaniel]

Delivered at 8272d38. The merged tree matches the qualified PR tree. All four PR checks and all five main checks pass, including Pages deployment and executable documentation contracts.

The live release catalog matches the merged source byte for byte. All eight canonical quickstarts return HTTP 200 and show DW_SERVER_IMAGE=durableworkflow/server:2.5.19, including German, Spanish, French, Brazilian Portuguese, Ukrainian, Japanese and Simplified Chinese.

This completes the public documentation follow-through for Workflow #751. The completed remote branch is absent. No local runtime or paid resource was created.