fix: harden v0.2.1 Homebrew smoke readiness

[DevVig]

What changed

• wait for marker, service state, and app process readiness on macOS runners
• read the app version directly from Info.plist with PlistBuddy
• dump Homebrew service and daemon diagnostics before cleanup on failure
• apply the same readiness checks to final public-install verification

Evidence

• failed v0.2.1 release artifacts were downloaded and exercised directly on Apple Silicon
• packaged microbridged remained alive and listened on an isolated socket
• signed Microbridge.app reported 0.2.1, passed codesign verification, and remained alive
• bash syntax, workflow YAML parse, and git diff checks pass

This repairs the smoke harness that stopped release run 29656672177 before any prerelease was published.

[coderabbitai]

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Review details

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Configuration used: Organization UI

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Run ID: ca6fb036-1f10-415a-a39f-4a631bc63ad0

📥 Commits

Reviewing files that changed from the base of the PR and between d13db7b and 9441352.

📒 Files selected for processing (2)

• .github/workflows/finalize-release.yml
• scripts/smoke-formula.sh

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_{Comment @coderabbitai help to get the list of available commands.}

[Copilot]

Pull request overview

Hardens the macOS Homebrew smoke/verification harness for v0.2.1 by extending readiness waits, validating the installed app version from Info.plist, and capturing diagnostics on failures so release finalization is less prone to flaky runner timing.

Changes:

• Add a failure-only diagnostics path to the formula smoke script (services status + log tail + bundle metadata).
• Replace defaults read with PlistBuddy for CFBundleShortVersionString reads.
• Expand readiness loops and apply equivalent checks to the public-install verification in the release finalization workflow.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
scripts/smoke-formula.sh	Adds diagnostics-on-failure and strengthens brew/app readiness checks in the local formula smoke harness.
.github/workflows/finalize-release.yml	Applies the same readiness checks to the final “public tap install” verification step before promoting a release.

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