test: add staging hub server to openapi

[xernobyl]

What does this PR do?

Changes OpenAPI server entries.

This is a focused validation change for ENG-759. Stainless Code Mode is currently receiving the correct FORMBRICKS_HUB_BASE_URL, but its sandbox rejects it. Stainless guidance suggests the sandbox may derive allowed outbound hosts from the OpenAPI servers array used during SDK/MCP generation, so this PR tests that hypothesis by making the staging Hub URL explicit in the uploaded spec.

How should this be tested?

• go test ./internal/api/handlers ./cmd/api -run 'OpenAPI|HTTPServerServesOpenAPI' -count=1
• npx --yes @stoplight/spectral-cli@6 lint openapi.yaml
• After the Stainless preview build completes, run the generated/preview MCP package against staging:

  HUB_API_KEY=<staging-key> \
  FORMBRICKS_HUB_BASE_URL=<hub-urç> \
  npx -y @formbricks/hub-mcp@<preview-version>

[github-actions]

✱ Stainless preview builds

This PR will update the hub SDKs with the following commit message.

test: add staging hub server to openapi

✅ hub-openapi studio · code

Your SDK build had at least one "note" diagnostic.
generate ✅

✅ hub-typescript studio · code

Your SDK build had at least one "note" diagnostic.
generate ✅ → build ⏭️ → lint ⏭️ → test ✅

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Last updated: 2026-05-07 15:33:28 UTC

[coderabbitai]

Walkthrough

This pull request adds a new staging server endpoint to the OpenAPI specification for the Hub. The servers section in openapi.yaml was extended to include the staging Hub instance at https://hub-internal.formbricks.com with a corresponding description. The change is minimal and isolated to the server configuration, with no modifications to API paths, schemas, or components.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding a staging hub server to the OpenAPI spec.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	PR description provides clear context about the change and testing instructions, though some checklist items are not completed.

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