#25494 cloud enroll-machine: its strings in all 21 languages, ahead of the command

The strings for cmux cloud enroll-machine (#25263), in all 21 languages, split out so that PR stays under 800 lines:

• action.cloudEnrollMachine
• argument.sshKey
• cloud.cli.enrollNameInvalid
• cloud.cli.enrollNoAddress
• cloud.cli.enrollKeyUnreadable
• cloud.cli.enrollAuthorizeFailed

It lands before #25263 (or alongside it). Nothing reads these strings until #25263 lands, and each keeps its English default in code.

• Every locale beyond en and ja has state needs_review. Each keeps its flags, its commands and its %@ placeholder.
• Review: Codex gpt-6-astra at xhigh through SR2 checked these strings inside #25263, including a Turkish wording fix ("açık anahtar" for "public key"), with SHIP at 62769d83d06b529967b487cac46e9421583435cf. This PR applies #25263's diff for these three catalogs onto feat-cmux-next as is. The catalogs are valid JSON with no duplicate keys.

No capture: strings only.

Agent session: gcp-agent-lane-1

🤖 Generated with Claude Code

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