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

Unicode-based ASCII art generator skill with multiple styles
(block, shadow, outlined, gradient, decorative frame), character
palette reference, and usage examples. No external dependencies.

skills/creative/ascii-art/SKILL.md

@@ -0,0 +1,152 @@
+---
+name: ascii-art
+description: Generate creative ASCII art banners, logos, and text art using Unicode box-drawing and block characters. Supports multiple styles and custom text.
+version: 1.0.0
+author: Hermes Agent
+license: MIT
+dependencies: []
+metadata:
+  hermes:
+    tags: [ASCII, Art, Banners, Creative, Unicode, Text-Art]
+    related_skills: [excalidraw]
+
+---
+
+# ASCII Art Generator
+
+Generate creative ASCII art banners, logos, and decorative text using Unicode characters. No external tools needed -- pure text output.
+
+## Capabilities
+
+- **Text Banners**: Large stylized text using block characters
+- **Decorative Borders**: Frames and boxes around content
+- **Mini Logos**: Compact symbolic art (icons, emblems)
+- **Scene Art**: Small ASCII scenes and illustrations
+
+## Character Palette
+
+Use these Unicode characters for rich output:
+
+### Box Drawing
+```
+╔ ╗ ╚ ╝ ║ ═ ╠ ╣ ╦ ╩ ╬
+┌ ┐ └ ┘ │ ─ ├ ┤ ┬ ┴ ┼
+```
+
+### Block Elements
+```
+░ ▒ ▓ █ ▄ ▀ ▌ ▐ ▖ ▗ ▘ ▝ ▚ ▞
+```
+
+### Geometric & Symbols
+```
+◆ ◇ ◈ ● ○ ◉ ■ □ ▲ △ ▼ ▽ ★ ☆ ✦ ✧
+◀ ▶ ◁ ▷ ⬡ ⬢ ⟐ ⌂ ⎔ ⏣
+```
+
+### Decorative
+```
+╭ ╮ ╰ ╯ ─ ═ ⟨ ⟩ « » ‹ › ∙ • ·
+```
+
+## Style Guide
+
+### 1. Block Banner Style
+Best for short text (1-8 characters). Use full block characters (`█`) to form letters:
+
+```
+██╗  ██╗██╗
+██║  ██║██║
+███████║██║
+██╔══██║██║
+██║  ██║██║
+╚═╝  ╚═╝╚═╝
+```
+
+### 2. Shadow Style
+Add depth with half-blocks (`▄ ▀`) below or beside letters:
+
+```
+ ▄▄▄▄▄  ▄▄▄▄▄
+█     █ █     █
+█  ▀▀▀  █  ▀▀▀
+█  ▄▄▄  █  ▄▄▄
+█     █ █     █
+ ▀▀▀▀▀   ▀▀▀▀▀
+```
+
+### 3. Outlined Style
+Use box-drawing for clean outlines:
+
+```
+╔═══════════════════════╗
+║   YOUR TEXT HERE      ║
+╚═══════════════════════╝
+```
+
+### 4. Gradient Style
+Use block density for gradient effects:
+
+```
+░░▒▒▓▓██ TEXT ██▓▓▒▒░░
+```
+
+### 5. Decorative Frame Style
+Combine multiple character sets:
+
+```
+╭─────────────────────╮
+│  ★  YOUR TEXT  ★    │
+│  ◆ subtitle here ◆  │
+╰─────────────────────╯
+```
+
+## Rules
+
+1. **Max width**: 60 characters per line (terminal-safe)
+2. **Max height**: 15 lines for banners, 25 for scenes
+3. **Monospace only**: Output must look correct in monospace fonts
+4. **No external tools**: Generate everything inline as text
+5. **Alignment**: Center-align banners by default
+6. **Creativity**: Mix styles freely, add decorative elements
+
+## Examples
+
+**User**: "Make a banner for my project called NOVA"
+
+**Response**:
+```
+╔══════════════════════════════════════╗
+║                                      ║
+║   ███╗   ██╗ ██████╗ ██╗   ██╗ █████╗  ║
+║   ████╗  ██║██╔═══██╗██║   ██║██╔══██╗ ║
+║   ██╔██╗ ██║██║   ██║██║   ██║███████║ ║
+║   ██║╚██╗██║██║   ██║╚██╗ ██╔╝██╔══██║ ║
+║   ██║ ╚████║╚██████╔╝ ╚████╔╝ ██║  ██║ ║
+║   ╚═╝  ╚═══╝ ╚═════╝   ╚═══╝  ╚═╝  ╚═╝ ║
+║                                      ║
+║       ★ The Future is Bright ★       ║
+╚══════════════════════════════════════╝
+```
+
+**User**: "Draw a small rocket"
+
+**Response**:
+```
+      ▲
+     ╱ ╲
+    ╱   ╲
+   │  ◉  │
+   │     │
+   │  H  │
+   │  E  │
+   │  R  │
+  ╱│  M  │╲
+ ╱ │  E  │ ╲
+╱  │  S  │  ╲
+▔▔▔╘═════╛▔▔▔
+   ╱ ▓▓▓ ╲
+  ╱ ░▓▓▓░ ╲
+     ░▓░
+      ░
+```