feat: add ascii-art skill for creative text banners and art

[0xbyt4]

Summary

• New bundled skill under skills/creative/ascii-art/ that teaches the agent to generate creative ASCII art banners, logos, and text art using Unicode box-drawing and block characters.
• 5 styles: block banner, shadow, outlined, gradient, decorative frame
• Character palette reference with box-drawing, block elements, and geometric symbols
• Terminal-safe (max 60 chars wide), no external dependencies

Usage

> Load the ascii-art skill and make a banner that says HERMES
> Use ascii-art to draw a rocket

[teknium1]

Merged in commit cb36930, then enhanced in 405c7e0.

Your original skill is preserved as the fallback mode (Mode 3). Added two primary modes on top:

• Mode 1: pyfiglet — 571 fonts via python3 -m pyfiglet, no API key needed, perfect for text banners
• Mode 2: asciiart.eu — 11,000+ pre-made ASCII artworks searchable via web_extract

Decision flow: text banners → pyfiglet, art of a thing → asciiart.eu search, custom/creative → your LLM palette (fallback). Thanks for the initial skill! 🙏

[teknium1]

Updated again in commit 0dba302. The skill now covers 7 tools inspired by awesome-ascii-art:

1. pyfiglet — 571 fonts for text banners
2. cowsay — 50+ characters with speech bubbles
3. boxes — 70+ decorative border designs (composable with pyfiglet!)
4. toilet — colored text art with rainbow/metal effects
5. ascii-image-converter / jp2a — image-to-ASCII conversion
6. asciiart.eu — 11,000+ pre-made artworks
7. LLM generation — Unicode palette fallback

All local CLI tools, no API keys needed. Decision flow picks the right tool automatically.