test: isolate config sync e2e resources

[guoqqqi]

Summary

• use unique resource IDs in config sync E2E tests so parallel PR runs do not delete each other's resources in the shared API7 environment
• skip repeated context validation during per-test setup because TestMain already verifies control-plane health and resolves the gateway group
• include context creation stdout/stderr in failure output for faster diagnosis

Verification

• go test ./...
• go test -c -tags=e2e -o /tmp/a7-e2e.test ./test/e2e
• git diff --check

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 13d6ddc7-e90a-4b11-a9db-c98a938a27a0

📥 Commits

Reviewing files that changed from the base of the PR and between 024dacd and 6669200.

📒 Files selected for processing (2)

• test/e2e/config_sync_test.go
• test/e2e/setup_test.go

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/e2e-shared-env-isolation

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[Copilot]

Pull request overview

Improves robustness of config sync E2E tests when multiple CI jobs run against the same shared API7 EE environment, by avoiding resource ID collisions and reducing repeated context validation overhead during test setup.

Changes:

• Generate per-test unique service/route IDs in config sync E2E tests to prevent cross-run deletions.
• Add --skip-validation to per-test context creation to avoid redundant health checks already performed in TestMain.
• Include context creation stdout/stderr in failures to speed up debugging.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
test/e2e/setup_test.go	Adds unique ID helper + counter; skips context validation during per-test setup; improves failure diagnostics.
test/e2e/config_sync_test.go	Switches hardcoded service/route IDs to unique per-test IDs in config sync tests.

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