[release/13.4] Refine dynamic endpoint allocation

[aspire-repo-bot]

Backport of #17879 to release/13.4

/cc @danegsta

Customer Impact

Testing

Risk

Regression?

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[github-actions]

🚀 Dogfood this PR with:

⚠️ WARNING: Do not do this without first carefully reviewing the code of this PR to satisfy yourself it is safe.

curl -fsSL https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.sh | bash -s -- 17952

Or

• Run remotely in PowerShell:

iex "& { $(irm https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.ps1) } 17952"

[github-actions]

❌ CLI E2E Tests failed — 99 passed, 9 failed, 4 unknown (commit b32516b)

❌ Failed Tests

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_{📹 Recordings uploaded automatically from CI run #27019963646}