feat(inquirerer): add prompt timeout for non-TTY environments

[pyramation]

Summary

Adds a prompt timeout to Inquirerer that prevents AI agents and CI pipelines from hanging indefinitely when they forget to pass --no-tty or provide required CLI flags.

Auto-detection: When noTty is false but input.isTTY is falsy (piped stdin, non-interactive shell), a 30s default timeout is applied automatically. Real TTY sessions are unaffected.

Configurable: new Inquirerer({ timeout: 15000 }) overrides the default. timeout: undefined (or omitting it with a real TTY) means no timeout.

On timeout, PromptTimeoutError is thrown with a diagnostic message:

PROMPT TIMEOUT: No input received for "workspace" after 30s.

REQUIRED ARGUMENTS:
  --name       Name? [REQUIRED]
  --workspace  Workspace? [REQUIRED]
  --verbose    Enable verbose? (default: false)

HOW TO FIX:
  1. Pass all required arguments as CLI flags:
     $ command --name <value> --workspace <value>
  2. Or enable non-interactive mode:
     new Inquirerer({ noTty: true, useDefaults: true })
  3. Or pass --no-tty if the CLI supports it.

WHY THIS HAPPENED:
  The prompt expected interactive TTY input (keyboard), but no input
  was received. AI agents and CI pipelines must pass arguments via
  CLI flags instead of interactive prompts.

Key additions in prompt.ts:

• PromptTimeoutError class (exported, carries currentQuestion + allQuestions)
• InquirererOptions.timeout?: number
• DEFAULT_NON_TTY_TIMEOUT = 30_000
• Auto-detect in constructor: if (!noTty && !input.isTTY) this.timeout = DEFAULT_NON_TTY_TIMEOUT
• withTimeout() races each handleQuestionType() call against the timer
• formatTimeoutError() renders the diagnostic with all flags, aliases, defaults, and fix instructions

Link to Devin session: https://app.devin.ai/sessions/609b729fc7614756963122670fc9cef6
Requested by: @pyramation

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