design-systems: add 74 brand DESIGN.md files (VoltAgent/awesome-design-md)

- 74 brands: airbnb, stripe, apple, figma, linear, vercel, etc.
- 147 files: DESIGN.md + README.md per brand (~2.1 MB)
- Each DESIGN.md contains structured brand analysis (colors, typography, components)
- Updated 00-overview.md with new design-systems directory

00-overview.md

@@ -24,7 +24,8 @@ Encode premium web design taste into reusable patterns so LLMs can generate prof
 | 🎯 Landing | 25 patterns | ✅ Complete |
 | 🎬 Blender Pipeline | 1 pipeline spec | ✅ Complete |
 | ⚙️ Deterministic Gen | 1 methodology | ✅ Complete |
-| **Total** | **82 patterns + assets** | **✅ Complete** |
+| 🏢 Brand Design Systems | 74 brands (147 DESIGN.md) | ✅ Complete |
+| **Total** | **82 patterns + 74 brand systems + assets** | **✅ Complete** |
 
 ## 📁 Structure
 
@@ -84,6 +85,17 @@ wow-design-wiki/
 │   ├── media/00-media-prompts.md
 │   ├── psychology/00-psychology-prompts.md
 │   └── system/00-system-prompts.md
+├── design-systems/
+│   ├── airbnb/
+│   │   ├── DESIGN.md (brand analysis: colors, typography, components)
+│   │   └── README.md
+│   ├── stripe/
+│   │   ├── DESIGN.md
+│   │   └── README.md
+│   ├── ... (72 more brands)
+│   └── zapier/
+│       ├── DESIGN.md
+│       └── README.md
 └── assets/
     ├── icons/
     │   ├── carbon/ (2673 SVG icons, 2.5 MB)