Takos Computer v2.1.3

Takos Computer is again installable as a plain OpenTofu Capsule.

• Adds the executable root Cloudflare module for Worker, Durable Object, Container, and KV lifecycle.
• Adds ordinary launch_url and mcp_url outputs plus managed Interface OAuth support.
• Adds the optional ref-free install-options.json Capsule Source Options chooser.
• Adds CI coverage for the full sandbox Container build and enabled OpenTofu plan.

Takosumi external install links may omit ref; the stable-tag resolver will select v2.1.3 until a newer stable SemVer tag is published.