MAS AI Assistant 1.2.1 adds more free AI providers, admin improvements, and fixes Module Manager documentation.

Highlights:
- Start generating with no API key using Pollinations or Hugging Face
- Free-tier providers: Google Gemini, Groq, OpenRouter, Cerebras, Cloudflare Workers AI, GitHub Models, and NVIDIA NIM
- Optional News Targeted AI at https://ai.newstargeted.com/ (ntai_ token)
- Custom Providers, Batch Generation, and Content History in the admin UI
- Settings tab with API key management, Cloudflare Account ID, and free-tier setup guide
- Help and About pages in Module Manager now display correctly

Requirements: CMS Made Simple 2.2+ (tested on 2.2.22), PHP 7.4 through 8.5.