--json -j should not use color

[dmerand]

What

Disable color output automatically when a command runs in JSON mode.

This makes --json and -j behave like --no-color at CLI bootstrap.

Why

Machine-readable output should not depend on terminal styling.

Without this, ANSI escape sequences can leak into JSON string values unless callers also remember to pass --no-color.

How

Treat --json and -j as no-color signals when the CLI sets up its environment.

Testing

Run a JSON-mode command such as shopify app validate --json ... and confirm the JSON output does not contain ANSI escape sequences without also passing --no-color.

[dmerand]

• Expose structured app validation issues in JSON output #7070
• Preserve structured app validation issues internally #7066
• Add --json to validate #7065
• --json -j should not use color #7069 👈 (View in Graphite)
• main

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[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟢	Statements	82.21%	14927/18157
🟡	Branches	74.64%	7394/9906
🟢	Functions	81.36%	3767/4630
🟢	Lines	82.61%	14114/17086

Test suite run success

3912 tests passing in 1502 suites.

Report generated by 🧪jest coverage report action from 91c5478