A practical Tangled CLI nnabeyang.tngl.sh/swift-tangled

ci: publish release artifacts with Spindle #205

Merged nnabeyang.tngl.sh
targeting main
Merged opened by and assigned to nnabeyang.tngl.sh
targeting main

Build and publish signed-tag macOS release artifacts on the self-hosted Spindle worker through the restricted tng authentication agent. Keep signed tag creation, upload authorization, and Homebrew updates as explicit maintainer-controlled stages.

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