Wave 4: Tauri desktop install/open/run E2E

[snowzane]

Objective

Close this wave without promoting partial evidence into product truth.

Required Evidence

• Public issue links for every blocker touched by this wave.
• Verification command output.
• Human decision note for admission, release, or ordinary-user claims.

Non-Actions

• Do not treat sandbox fixture evidence as ordinary proof.
• Do not infer private Realm state from public repo presence.
• Do not treat local adoption as public admission.

[github-actions]

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