fix: filter large user-supplied config values from the cloud API

[tgriesser]

Additional details

Deals with situations where larger than expected config values are coming through to the Cloud APIs inadvertently for certain route paths.

Steps to test

Added test

How has the user experience changed?

Fixes API errors for large serialized webpack configs

PR Tasks

• Have tests been added/updated?
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?

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Note

Filters large/duplicated config values before posting instance tests to Cloud, updating record flow, tests, and changelog.

• Backend / Cloud API:
  • postInstanceTests now sends a filtered config using filterRuntimeConfigForRecording, removing rawJson/resolved, masking env values (e.g., omitted: type), and setting devServer.{webpackConfig|viteConfig} to omitted.
  • Imports filterRuntimeConfigForRecording and applies it when constructing request body.
• Config Utilities:
  • Added filterRuntimeConfigForRecording(config) in packages/server/lib/config.ts to strip arbitrarily large/duplicated fields from runtime config prior to recording.
• Recording Flow:
  • Simplified runtime config merge in record.ts to { ...config, ...runtimeConfig } (removed resolved-origin annotations).
• Tests:
  • Unit test asserts Cloud API strips large config values and masks env.
  • System test expectations updated (remove resolved.* assertions).
• Changelog:
  • Adds bugfix entry noting issues with large config values when recording to Cypress Cloud.

^{Written by Cursor Bugbot for commit dd67d03. This will update automatically on new commits. Configure here.}

[cypress]

cypress    Run #67424

Run Properties:   Passed #67424  •  dd67d03f1a: fix tests after dropping resolved

Project	cypress
Branch Review	tgriesser/fix/filter-large-user-supplied-values
Run status	Passed #67424
Run duration	18m 56s
Commit	dd67d03f1a: fix tests after dropping resolved
Committer	Tim Griesser
View all properties for this run ↗︎

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Test results
Failures	0
Flaky	12
Pending	1098
Skipped	4
Passing	26689
View all changes introduced in this branch ↗︎

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Warning

Partial Report: The results for the Application Quality reports may be incomplete.

UI Coverage  45.48%
Untested elements	188
Tested elements	161

Accessibility  97.98%
Failed rules	4 critical   8 serious   2 moderate   2 minor
Failed elements	101

[cypress-bot]

Released in 15.7.0.

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