feat(devto): add devto adapter

[vkop007]

Description

This PR introduces the new DEV.to adapter to OpenCLI. It leverages the official, free DEV.to public API (/api/articles) to lightning-fast stream high-quality developer articles directly into the terminal without requiring a browser session or API keys.

Commands Added (opencli devto):

• top - Fetch the top developer articles of the day globally (e.g., opencli devto top --limit 5).
• tag - Fetch the latest articles filtered by a specific technology tag (e.g., opencli devto tag --tag javascript).
• user - Fetch recent stories authored by a specific DEV.to user (e.g., opencli devto user --username ben).

Note: Fully documented and integrated into the VitePress website and project READMEs!

Related issue: N/A

Type of Change

• 🐛 Bug fix
• ✨ New feature
• 🌐 New site adapter
• 📝 Documentation
• ♻️ Refactor
• 🔧 CI / build / tooling

Checklist

• I ran the checks relevant to this PR
• I updated tests or docs if needed
• I included output or screenshots when useful

Documentation (if adding/modifying an adapter)

• Added doc page under docs/adapters/
• Updated docs/adapters/index.md table
• Updated sidebar in docs/.vitepress/config.mts

Screenshots / Output

$ opencli devto top --limit 3
  devto/top
┌─────────────────────────────────────────────────────────────────────────┬─────────────────┬───────────┬──────────┬─────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Title                                                                   │ Author          │ Reactions │ Comments │ Url                                                                                                 │
├─────────────────────────────────────────────────────────────────────────┼─────────────────┼───────────┼──────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Tailscale Deep Dive: Why Developers Are Ditching Traditional VPNs       │ soytuber        │ 3         │ 0        │ https://dev.to/soytuber/tailscale-deep-dive-why-developers-are-ditching-traditional-vpns-413h       │
├─────────────────────────────────────────────────────────────────────────┼─────────────────┼───────────┼──────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Adding Stripe Checkout to a Solo SaaS: Lessons from PatentLLM's $1K/mo… │ soytuber        │ 2         │ 0        │ https://dev.to/soytuber/adding-stripe-checkout-to-a-solo-saas-lessons-from-patentllms-1kmo-plan-1c4d│
├─────────────────────────────────────────────────────────────────────────┼─────────────────┼───────────┼──────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Sending a Million Rows from the Backend: Streaming, Batching, Compress… │ ishaaan         │ 2         │ 1        │ https://dev.to/ishaaan/sending-a-million-rows-from-the-backend-streaming-batching-compression-pro…  │
└─────────────────────────────────────────────────────────────────────────┴─────────────────┴───────────┴──────────┴─────────────────────────────────────────────────────────────────────────────────────────────────────┘
3 items · devto/top