Unify non-Azure CLI E2E helpers and stabilize localhive#16131

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davidfowl wants to merge 12 commits intomainfrom

davidfowl/unify-e2e-helpers

Commits on Apr 14, 2026

Migrate all E2E tests to CliInstallStrategy

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Stabilize localhive CLI flows

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Address review feedback on template tooling

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Address review feedback on socket helpers

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Drop UDS socket fallback changes

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Fix CLI template reinstall and output draining

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Drop ProcessExecution CI follow-up

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Unify non-Azure CLI E2E helpers

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Restore idle-based ProcessExecution drain

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Stabilize CLI start-stop cleanup assertion

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Use same run for CLI PR installs

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Fix PackagingService Semver import

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