[Nitro CLI] Force non-interactive mode when output format is set

[tobias-tengler]

No description provided.

[Copilot]

Pull request overview

This PR ensures Nitro CLI commands behave non-interactively whenever an output format (currently --output json) is selected, even when running in an interactive TTY. This aligns CLI behavior with the option’s intent (“enables non-interactive mode”) and prevents prompts/progress UI from appearing in structured output scenarios.

Changes:

• Update NitroConsole.IsInteractive to return false whenever output is not human-readable (i.e., an output format is set).
• Adjust the command test harness to simulate an interactive terminal while using --output json, ensuring coverage of the intended behavior.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/Nitro/CommandLine/test/CommandLine.Tests/Commands/CommandTestBase.cs	Updates JSON-output test setup to simulate an interactive TTY while asserting --output json still forces non-interactive behavior.
src/Nitro/CommandLine/src/CommandLine/Services/Console/NitroConsole.cs	Makes interactivity conditional on human-readable output, so selecting an output format disables interactive mode.

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