Clear stale published versions, register the corrected reverse-DNS Curio IDs, add Sing-box Manager, and document the 0.0.1-alpha.x prerelease convention.
Explain how to add the official source and develop, package, and install Curios.
Use the selected blue-and-white illustration as the README hero and preserve the poster variants and prompts for reference.
Validation: documentation links and anchors checked; CLI static starter creation, check, and pack passed; image dimensions and asset links verified.
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