Migrate rush-lib from deprecated inquirer to @inquirer/* modular packages

[Copilot]

Replaces the deprecated monolithic inquirer package with the new @inquirer/* scoped packages, using only the specific prompt-type packages actually consumed. All packages use await import() (dynamic import) rather than static imports because every @inquirer/* package ships ESM-only ("type": "module"), which would break the CJS Jest environment if statically required.

Package changes (libraries/rush-lib)

• Added: @inquirer/search, @inquirer/select, @inquirer/input, @inquirer/confirm, @inquirer/checkbox
• Removed: inquirer, @types/inquirer, figures
• nonbrowser-approved-packages.json updated accordingly

SearchListPrompt.ts — deleted

The custom searchable list prompt is replaced entirely by the off-the-shelf @inquirer/search prompt, which provides equivalent functionality. SearchListPrompt.ts is removed.

InteractiveUpgrader.ts

Replaced new Prompt({ list: SearchListPrompt }).run([…]) with a direct await search({…}) call from @inquirer/search. A synchronous source function filters the static project list by plain package name; the name field remains ANSI-colored for display while short holds the plain name used for filtering and the answer summary.

const { default: search } = await import('@inquirer/search');
return await search<RushConfigurationProject>({
  message: 'Select a project you would like to upgrade',
  source: (term) => {
    const choices = projects.map((project) => ({
      name: Colorize.green(project.packageName),
      short: project.packageName,
      value: project
    }));
    if (!term) return choices;
    const filter = term.toUpperCase();
    return choices.filter((choice) => choice.short.toUpperCase().includes(filter));
  },
  pageSize: 12
});

ChangeAction.ts

Replaced inquirer.createPromptModule() and the promptModule parameter threading through all private methods with inline dynamic imports at each call site. All promptModule: InquirerType.PromptModule parameters removed.

// Before
const { appendComment } = await promptModule({ type: 'list', name: 'appendComment', … });

// After
const { default: select } = await import('@inquirer/select');
const appendComment = await select<'skip' | 'append'>({ message: …, choices: … });

InteractiveUpgradeUI.ts

Replaced inquirer.prompt([{ type: 'checkbox', … }]) with @inquirer/checkbox and new inquirer.Separator() with @inquirer/checkbox's re-exported Separator. The @inquirer/checkbox module is dynamically imported at the top of upgradeInteractive(); unselectable and createChoices helpers are defined as closures inside it to close over the runtime Separator class.

[dmichon-msft]

@copilot I had thought this prompt might do something special, but it sounds like the new @inquirer/search prompt is probably equivalent? In which case, go ahead and use that.

[Copilot]

Done in e74a019. SearchListPrompt.ts is deleted entirely — InteractiveUpgrader now calls @inquirer/search directly, passing a synchronous source function that filters the static project list by plain package name. @inquirer/core and figures are removed as direct dependencies.