feat: add info command

[onmax]

Closes #207

Queries npm registry directly (not via PM CLI). Supports:

• nypm info vue
• nypm info @nuxt/kit --json
• nypm info vue@beta
• Custom registry via --registry

Example output

$ nypm info vue
vue@3.5.27
The progressive JavaScript framework for building modern web UI.
license: MIT

$ nypm info vue@beta
vue@3.6.0-beta.5
The progressive JavaScript framework for building modern web UI.
license: MIT

$ nypm info @nuxt/kit --json
{
  "name": "@nuxt/kit",
  "version": "4.3.0",
  "description": "Toolkit for authoring modules and interacting with Nuxt",
  "license": "MIT",
  "homepage": "https://nuxt.com/docs/4.x/api/kit",
  "repository": { "url": "git+https://github.com/nuxt/nuxt.git", "type": "git", "directory": "packages/kit" },
  "dependencies": { "c12": "^3.3.3", "defu": "^6.1.4", "jiti": "^2.6.1", ... },
  "devDependencies": { "vite": "7.3.1", "vitest": "3.2.4", ... },
  "dist": { "tarball": "https://registry.npmjs.org/@nuxt/kit/-/kit-4.3.0.tgz", ... },
  "versions": ["0.2.0", "0.3.0", ... "4.3.0"],
  "distTags": { "alpha": "4.0.0-alpha.4", "rc": "4.0.0-rc.0", "3x": "3.21.0", "latest": "4.3.0" }
}

[onmax]

@pi0 thanks for the review. Addressed all review feedback in 92b0e6b