fix: support for --json on sites

[sean-roberts]

netlify sites:create --json was not a documented option so agents fail with

 ›   Error: unknown option '--json'
 ›   See more help with --help

This is already supported in the feature it's just missing from the options causing errors

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: ea07b543-2cfe-4249-bfb1-8158b94d1f12

📥 Commits

Reviewing files that changed from the base of the PR and between 7a920fe and e385937.

📒 Files selected for processing (1)

• tests/integration/commands/sites/sites.test.ts

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📝 Walkthrough

Summary by CodeRabbit

• New Features

  • Added a --json flag to the sites:create command to output project data as JSON.

• Tests

  • Added an integration test verifying the sites:create JSON output when --json is used.

Walkthrough

A --json boolean flag was added to the netlify sites:create command in both docs (docs/commands/sites.md) and the command implementation (src/commands/sites/sites.ts), enabling output of project data as JSON. An integration test (tests/integration/commands/sites/sites.test.ts) was added to verify that when --json is passed the command emits JSON via the logJson helper with expected site fields (id, name, admin_url, ssl_url).

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding support for the --json flag to the sites command, which aligns with the changeset modifications.
Description check	✅ Passed	The description clearly explains the problem (--json option not recognized for sites:create), the error it causes, and that the underlying feature already exists. It directly relates to the changes made.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch sr/deploy-docs

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[github-actions]

📊 Benchmark results

Comparing with 21282ea

• Dependency count: 1,059 (no change)
• Package size: 354 MB ⬆️ 0.00% increase vs. 21282ea
• Number of ts-expect-error directives: 356 (no change)