Summary

This PR updates Rancher Dashboard from Cypress 11 to Cypress 15, applies required Cypress compatibility migrations, resolves merge conflicts, constrains Cypress peer dependency to the supported major, and adds an E2E stabilization fix for setup reruns.

Occurred changes and/or fixed issues

• Dependency upgrades

  • Bumped Cypress and related Cypress ecosystem packages across:
    • root package.json
    • cypress/package.json
    • shell/package.json
  • Updated corresponding lockfiles (yarn.lock, cypress/yarn.lock, shell/yarn.lock).

• Cypress runtime/config migration

  • Migrated testIsolation usage from string values to booleans across E2E specs.
  • Removed deprecated/removed Cypress config options:
    • experimentalSessionAndOrigin
    • videoUploadOnPasses

• Plugin/type compatibility updates

  • Updated @cypress/grep integration to current plugin/support entrypoints.
  • Removed deprecated @cypress/grep type library reference from Cypress TS config.
  • Added explicit tags typing for suite/test config overrides in Cypress globals.
  • Updated Cypress v15-compatible assertions/usages where needed (e.g. cy.exec() result typing and stubbing adjustments).

• Merge conflict resolution

  • Merged latest master into this branch to clear new PR conflicts.
  • Resolved merge conflicts in root dependency manifests/lockfiles (package.json, yarn.lock, cypress/yarn.lock) while preserving Cypress v15 migration updates.

• Peer dependency compatibility hardening

  • Updated cypress/package.json peer dependency for Cypress from >=15.14.2 to ^15.14.2 to prevent unintended Cypress 16+ adoption for package consumers.

• E2E stabilization fix

  • Updated cypress/e2e/tests/setup/rancher-setup.spec.ts so the Create standard user setup step first checks whether standard_user already exists and skips creation if present.
  • This makes setup idempotent across reruns/retries and avoids duplicate-user setup failures.

Technical notes summary

• Cypress 12+ isolation syntax migration

  // before
  describe('...', { testIsolation: 'off' }, () => {})
  
  // after
  describe('...', { testIsolation: false }, () => {})

• @cypress/grep plugin wiring

  // before
  require('@cypress/grep/src/plugin')(config)
  
  // after
  require('@cypress/grep/plugin').plugin(config)

• Cypress exec return type updates

  • Updated assertions from result.code to result.exitCode where applicable.

• Setup idempotency adjustment

  • Added a pre-check against management.cattle.io.users in setup before creating standard_user.
  • If the user exists, setup logs and skips creation rather than failing with username already exists.

• Feature highlights from pre-upgrade stack to Cypress 15 / @cypress/grep 6

  • Cypress 12: cy.session() and cy.origin() moved to GA; experimentalSessionAndOrigin removed; testIsolation enabled by default.
  • Cypress 13: Cypress Cloud Test Replay enabled by default; videoUploadOnPasses removed; video defaults updated.
  • Cypress 14: broader cy.origin() requirements for cross-origin flows; modernized support matrix and CT defaults.
  • Cypress 15: Node install/runtime support updated (20/22/24+); cy.exec() code renamed to exitCode; additional webpack 4-era deprecations.
  • @cypress/grep 6: public grep config moved from --env to --expose (Cypress.env() deprecation path), while preserving tag/title/spec filtering workflows.

Areas or cases that should be tested

• E2E spec filtering behavior (TEST_ONLY, TEST_SKIP, GREP_TAGS) with the upgraded Cypress/grep stack.
• Flows that rely on testIsolation: false suites (state reuse across tests).
• Reporter/logging output paths and artifacts (cypress-mochawesome-reporter, terminal report) in CI runs.
• Setup flow rerun/retry behavior for rancher-setup.spec.ts, especially Create standard user.
• Consumer compatibility expectations for @rancher/cypress peer dependency resolution (Cypress v15 accepted, v16 rejected).
• @cypress/grep run-time filtering with --expose options in CI/local scripts where applicable.
• Mergeability and dependency lock consistency against latest master.

Areas which could experience regressions

• Spec selection/filtering (grep/tags + specPattern interactions).
• CI reporting pipelines consuming Cypress reporter artifacts.
• Suites that depended implicitly on prior testIsolation string config semantics.
• Type-checked Cypress support/test code using custom suite/test config options.
• Setup assumptions around test user existence during first-run and retry scenarios.
• CI/jobs still using legacy grep env flags instead of expose flags.
• Dependency resolution behavior after syncing root/cypress manifests/lockfiles with latest master.

Screenshot/Video

N/A (dependency/config/test infrastructure update; no UI behavior changes).

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• The PR has a Milestone
• The PR template has been filled out
• The PR has been self reviewed
• The PR has a reviewer assigned
• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes
• The PR has been reviewed in terms of Accessibility
• The PR has considered, and if applicable tested with, the three Global Roles Admin, Standard User and User Base