OpenAPI external spec drift detected

[github-actions]

The scheduled openapi-external-specs workflow detected drift in upstream Discord/Brevo OpenAPI specs.

Run: https://github.com/ESA-Blueshell/website/actions/runs/27949677506

External OpenAPI specs drifted from upstream. Diff (paths only):

 libs/openapi-specs/discord.json                    |    2 +-
 .../src/services/api/discord/client.gen.ts         |    2 +-
 .../frontend/src/services/api/discord/index.ts     |    4 +-
 .../frontend/src/services/api/discord/sdk.gen.ts   |   73 +-
 .../frontend/src/services/api/discord/types.gen.ts | 1193 +++++++++++++++++---
 5 files changed, 1134 insertions(+), 140 deletions(-)

To resolve: run ./scripts/generate-openapi-local.sh locally (no flag), commit the regenerated files (libs/openapi-specs, services/frontend/src/services/api/discord, generated Java clients), and open a PR.