Fix contract install registry selection

[charlesHetterich]

Summary

• prefer the active Playground/CDM environment registry during playground contract install instead of stale cdm.json registry snapshots
• keep cdm.json refreshed from cdm i -n w3s, pointing at the w3s meta-registry and live @w3s/playground-registry
• add a regression test for stale cdm.json.registry during install target resolution

Verification

• pnpm test src/commands/contract.test.ts
• pnpm format:check
• pnpm lint:license
• pnpm typecheck
• pnpm exec tsc --noEmit 2>&1 | grep -c "error TS" || true -> 0
• pnpm test

[github-actions]

Dev build ready — try this branch:

curl -fsSL https://raw.githubusercontent.com/paritytech/playground-cli/main/install.sh | VERSION=dev/fix/contract-install-registry-env bash

[github-actions]

E2E Test Pass · ❌ FAIL

Tag: e2e-ci-pr · Branch: fix/contract-install-registry-env · Commit: e29ec0c · Run logs

Cell	Result	Time
pr-deploy-foundry	✅ PASS	0m53s
pr-deploy-frontend	❌ FAIL	3m00s
pr-login-session	❌ FAIL	4m21s
pr-mod	❌ FAIL	2m35s
pr-deploy-cdm	✅ PASS	3m36s
pr-install	✅ PASS	0m59s
pr-preflight	❌ FAIL	2m41s
${{ matrix.cell }}	⏭️ SKIP	0m-1s
${{ matrix.cell }}	⏭️ SKIP	0m-1s

❌ Failed tests (3)

• e2e/cli/deploy.test.ts › dot deploy --playground — full pipeline (requires Paseo + IPFS) > frontend-only deploy completes end-to-end
  expected '\n ╭────────────────────────────────…' to contain 'Deploy complete'
• e2e/cli/deploy.test.ts › dot deploy --playground — full pipeline (requires Paseo + IPFS) > re-deploy same domain succeeds for same owner
  expected '\n ╭────────────────────────────────…' to contain 'Deploy complete'
• e2e/cli/deploy.test.ts › dot deploy --playground — full pipeline (requires Paseo + IPFS) > domain taken by another account shows unavailable
  bob deploy unexpectedly succeeded: ╭────────────────────────────────────────────────────────────────────────────╮ │ Join the competition first │ │ Playground commands are for builders who've joined the competition, so you │ │ need to be signed in first. │ │ │ │ Run playground login and scan the QR code with your Polkadot mobile app, │ │ then become a builder and join the competition at playground.dot in your │ │ desktop app. │ ╰────────────────────────────────────────────────────────────────────────────╯ : expected +0 not to be +0 // Object.is equality

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