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

validate_templates.cjs

@@ -0,0 +1,31 @@
+const fs = require('fs');
+const path = require('path');
+
+const rootDir = 'd:\\gdfhbfgdbnbdfbdf\\typogenie\\src-tauri\\templates';
+let errorCount = 0;
+let totalCount = 0;
+
+function walk(dir) {
+    const files = fs.readdirSync(dir, { withFileTypes: true });
+    files.forEach(dirent => {
+        const fullPath = path.join(dir, dirent.name);
+        if (dirent.isDirectory()) {
+            walk(fullPath);
+        } else if (dirent.name.endsWith('.json')) {
+            totalCount++;
+            const content = fs.readFileSync(fullPath, 'utf8');
+            try {
+                JSON.parse(content);
+            } catch (e) {
+                console.error(`Invalid JSON in: ${fullPath}\nError: ${e.message}`);
+                errorCount++;
+            }
+        }
+    });
+}
+
+walk(rootDir);
+console.log(`\nValidation complete.`);
+console.log(`Total Templates: ${totalCount}`);
+console.log(`Errors Found: ${errorCount}`);
+if (errorCount > 0) process.exit(1);