bug: Vercel integration env var import is capped at ~25 variables (first API page only)

[isshaddad]

Provide environment information

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Describe the bug

When importing environment variables from Vercel via the Vercel integration, only ~25 variables are offered for import even when the Vercel project has more configured. Expected: all (non-secret-type) variables from the Vercel project are available to import.

Cause (corrected 2026-08-21): the cap came from the team-level shared endpoint GET /v1/env, which pages at ~25 via an until millisecond-timestamp cursor and was only ever read one page deep. Fixed by paginating that fetch in #3879, plus the build-time sync in cloud#1074.

The original write-up below blamed the project endpoint GET /v10/projects/{idOrName}/env. That was wrong: it returns every record in one response and ignores limit. Verified against a project with 500 variables (all 500 returned in one response) and a team with 100 shared variables (returned across four pages, walked correctly). The leftover logger.warn("...returned paginated response - some env vars may be missing") in getVercelEnvironmentVariables fired on nothing and implied a cap that does not exist; removed separately.

Original (incorrect) cause, kept for the record: getVercelEnvironmentVariables calls client.projects.filterProjectEnvs() and only uses the first page of the response.

Reproduction repo

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To reproduce

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Additional information

1. Create a Vercel project with 30+ environment variables (non secret-type).
2. Connect the project to Trigger.dev via the Vercel integration.
3. Open the env var import step/sync.
4. Only the first ~25 variables are listed; the rest are silently missing. Server logs show the filterProjectEnvs returned paginated response warning.

[Atharva-026]

Hey! I came across this issue and would love to fix it. The root cause is clear — getVercelEnvironmentVariables only reads the first page and logs a warning instead of following pagination.next. I'll replace that with a loop that fetches all pages. Will have a PR up soon!