feat: port all template categories to JSON format

- Ported Minimalist templates to JSON (Swiss Grid, Brutalist, etc.)
- Ported Tech templates to JSON (SaaS, Terminal, Cyberpunk, etc.)
- Ported Creative templates to JSON (Art Gallery, Zine, Pop Art, etc.)
- Ported Industrial templates to JSON (Blueprint, Factory, Schematic, etc.)
- Ported Nature templates to JSON (Botanical, Ocean, Mountain, etc.)
- Ported Lifestyle templates to JSON (Cookbook, Travel, Coffee House, etc.)
- Ported Vintage templates to JSON (Art Deco, Medieval, Retro 80s, etc.)
- Updated README.md to reflect the new JSON-based style system (example configuration and contribution workflow)
- Completed migration of over 150 styles to the new architecture

src/styles/templates/industrial/electric-vehicle.ts

@@ -0,0 +1,32 @@
+import { StyleOption } from '../../../types';
+
+export const electricVehicle: StyleOption = {
+    id: 'electric-vehicle',
+    name: 'Electric Vehicle',
+    category: 'Automotive',
+    description: 'Sustainable tech design for electric vehicle and clean energy content. Eco-modern with electric accents.',
+    vibe: 'Sustainable, Modern, Electric',
+    googleFontsImport: 'https://fonts.googleapis.com/css2?family=Electrolize&family=Mulish:wght@400;600;700&display=swap',
+    wordConfig: {
+      heading1: { 
+        font: "Electrolize", size: 28, color: "10B981", bold: false, align: 'left',
+        spacing: { before: 400, after: 200, line: 240 }
+      },
+      heading2: { 
+        font: "Mulish", size: 14, color: "1E293B", bold: true, align: 'left',
+        spacing: { before: 320, after: 160, line: 240 }
+      },
+      body: { 
+        font: "Mulish", size: 10, color: "475569", align: 'left',
+        spacing: { before: 0, after: 160, line: 280 } 
+      },
+      accentColor: "10B981"
+    },
+    previewCss: `
+      font-family: 'Mulish', sans-serif;
+      h1 { font-family: 'Electrolize', sans-serif; font-size: 28pt; color: #10B981; margin-bottom: 24px; }
+      h2 { font-size: 14pt; font-weight: 700; color: #1E293B; margin-top: 32px; margin-bottom: 16px; }
+      p { font-size: 10pt; line-height: 1.6; color: #475569; margin-bottom: 14px; }
+      blockquote { background: #ECFDF5; padding: 16px; border-left: 4px solid #10B981; margin: 20px 0; }
+    `
+  };