fix(contract): clarify command help text

[UtkarshBhardwaj007]

Summary

Fixes #270 — the contract command's --help listing was opaque:

contract                Run CDM contract workflows

Two problems the DevEx audit flagged:

1. "CDM" means nothing to a new user — replaced with plain English.
2. No <command> hint, so it wasn't obvious contract takes subcommands (deploy, install).

Change

In src/commands/contract.ts:

.description("Install and deploy smart contract libraries for your app")
.usage("<command> [options]")

Rendered help now reads:

Usage: contract <command> [options]

Install and deploy smart contract libraries for your app

Verification

• pnpm format:check, pnpm lint:license, pnpm typecheck — clean
• pnpm test — 973 passed (90 files)
• Help output verified by rendering contractCommand
• Changeset included (patch)

[github-actions]

E2E Test Pass · ❌ FAIL

Tag: e2e-ci-pr · Branch: fix/contract-help-text · Commit: d68f7b0 · Run logs

Cell	Result	Time
pr-deploy-frontend	❌ FAIL	16m17s
pr-login-session	✅ PASS	2m40s
pr-deploy-foundry	✅ PASS	0m56s
pr-install	✅ PASS	1m03s
pr-deploy-cdm	✅ PASS	5m05s
pr-mod	✅ PASS	2m59s
pr-preflight	✅ PASS	3m34s
${{ matrix.cell }}	⏭️ SKIP	0m-1s
${{ matrix.cell }}	⏭️ SKIP	0m-1s

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