feat: add Shelve secrets integration

[onmax]

Summary

Adds Shelve as secrets provider with interactive setup wizard.

Changes

• Fetch env vars at build time, merge into runtimeConfig
• Transform SCREAMING_SNAKE_CASE → camelCase with smart prefix grouping
• 30s dev cache to avoid re-fetch on HMR
• Optional runtime fetch via Nitro plugin
• onInstall wizard: prompts for validation library + Shelve auth
• Auto-generate schema from Shelve variables
• Auto-install valibot/zod deps

Usage

// Zero-config (if shelve.json exists)
safeRuntimeConfig: {
  $schema: mySchema,
  shelve: true
}

// Explicit
safeRuntimeConfig: {
  $schema: mySchema,
  shelve: { project: 'my-app', slug: 'my-team' }
}

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/onmax/nuxt-safe-runtime-config@2

commit: ce86fcc

[vercel]

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Project	Deployment	Review	Updated (UTC)
nuxt-safe-runtime-config	Ready	Preview, Comment	Jan 24, 2026 7:11pm