feat(cli): add beta clusters recreate command

[anaqvi-tg]

Adds `together beta clusters recreate CLUSTER_ID`: tears down and rebuilds a cluster while preserving its reservation, via `POST /compute/clusters/{cluster_id}:recreate`.

What/Why: The recreate API (tcloud#2514, new-spec support in tcloud#2755) is entering the public pipeline via openapi#548; this is the CLI surface for it. Access is LaunchDarkly-gated per org server-side.

How:

• `recreate.py` — mirrors `delete`: fetch + print the cluster, confirm interactively, POST, print the returned intent; `--json` skips confirmation and emits the raw response
• `--reason` plus spec flags (`--cluster-type`, `--num-gpus`, `--num-reserved-gpus`, `--num-capacity-pool-gpus`, `--num-preemptible-gpus`) building the optional `new_spec`; no flags → recreate with current spec
• Hidden `--env qa|prod` global flag — maps to the environment's base URL in code; explicit `--base-url` wins, `TOGETHER_BASE_URL` applies when neither flag is given
• Calls the endpoint via raw `client.post` until the Stainless regen from openapi#548 lands, then swaps to `client.beta.clusters.recreate`

Testing: CLI tests for JSON mode, `--reason` passthrough, `new_spec` construction, declined confirmation, and `--env qa` routing to the QA host.

Ticket: TCL-8228

[broly-code-security-scanner]

Broly Security Scan

Note

✅ Clean scan
No vulnerabilities detected in this PR.

Note

Re-scan this PR anytime with /broly scan — useful after /broly undismiss, or to refresh findings without a new push.

Broly — SAST (zai-org/GLM-5.2) · Secrets · SCA · IaC · GH Actions · Base Images · Supply Chain Threats · Exploit Chains · Adversarial Verification

We're continuously improving Broly's accuracy and finding quality — your feedback is valuable. False positives, missed findings, bugs, and feature requests all welcome.

 

[blainekasten]

lets not merge this yet. Not until it's non feature-flagged