feat(init): Add interactive prompts for ao init command

[Shooksie]

Add interactive TTY prompts when running ao init without options:

• Project type confirmation with confidence display
• Template selection with arrow-key navigation
• Output directory selection with path validation
• Confirmation before overwriting existing files

Interactive mode is automatically enabled in TTY environments and
can be disabled with --yes flag for non-interactive/script usage.

Also update ESLint config to handle caughtErrors and destructured
array ignore patterns for unused variables.

[Shooksie]

PR Review Summary

Status: Changes requested - 1 blocking lint error

CI Status

• ✗ Lint: FAILURE (1 error)
• ✓ Type Check: PASSED
• ✓ Build: PASSED
• ✓ Tests: 246/246 PASSED

Blocking Issue

File: src/utils/prompts.ts line 132

validate?: (_value: string) => boolean | string;

Error: '_value' is defined but never used (no-unused-vars)

The ESLint rule varsIgnorePattern: '^_' added in this PR doesn't apply to parameters in type definitions. Please add an eslint-disable comment:

// eslint-disable-next-line @typescript-eslint/no-unused-vars
validate?: (_value: string) => boolean | string;

What's Working Well

• TypeScript types are correct
• All new exports are properly typed
• Tests pass
• Code quality is good

Once this lint error is fixed, the PR looks ready to merge.