feat: Implement centralized module management system

- Add ModuleRegistry for managing built-in modules (newsletter, wishlist, affiliate, subscription, licensing)
- Add ModulesController REST API for module enable/disable
- Create Modules settings page with category grouping and toggle controls
- Integrate module checks across admin-spa and customer-spa
- Add useModules hook for both SPAs to check module status
- Hide newsletter from footer builder when module disabled
- Hide wishlist features when module disabled (product cards, account menu, wishlist page)
- Protect wishlist API endpoints with module checks
- Auto-update navigation tree when modules toggled
- Clean up obsolete documentation files
- Add comprehensive documentation:
  - MODULE_SYSTEM_IMPLEMENTATION.md
  - MODULE_INTEGRATION_SUMMARY.md
  - ADDON_MODULE_INTEGRATION.md (proposal)
  - ADDON_MODULE_DESIGN_DECISIONS.md (design doc)
  - FEATURE_ROADMAP.md
  - SHIPPING_INTEGRATION.md

Module system provides:
- Centralized enable/disable for all features
- Automatic navigation updates
- Frontend/backend integration
- Foundation for addon-module unification

scripts/package-zip.mjs

@@ -3,6 +3,48 @@ import { mkdirSync } from 'node:fs';
 
 mkdirSync('dist', { recursive: true });
 
-execSync('zip -r dist/woonoow.zip . -x "**/.DS_Store"', { stdio: 'inherit' });
+// Only include production files, exclude dev dependencies and source files
+const excludes = [
+  '*.zip',
+  '.git/*',
+  '.gitignore',
+  'node_modules/*',
+  'vendor/*',
+  'admin-spa/node_modules/*',
+  'admin-spa/src/*',
+  'admin-spa/.eslintrc.cjs',
+  'admin-spa/tsconfig.json',
+  'admin-spa/tsconfig.node.json',
+  'admin-spa/vite.config.ts',
+  'admin-spa/package.json',
+  'admin-spa/package-lock.json',
+  'customer-spa/node_modules/*',
+  'customer-spa/src/*',
+  'customer-spa/.eslintrc.cjs',
+  'customer-spa/tsconfig.json',
+  'customer-spa/tsconfig.node.json',
+  'customer-spa/vite.config.ts',
+  'customer-spa/package.json',
+  'customer-spa/package-lock.json',
+  'scripts/*',
+  'dist/*',
+  'references/*',
+  '.vscode/*',
+  '.idea/*',
+  '*.log',
+  '*.tmp',
+  '*.temp',
+  '.DS_Store',
+  'Thumbs.db',
+  '.env',
+  '.env.local',
+  'package.json',
+  'package-lock.json',
+  'composer.json',
+  'composer.lock',
+  '*.md',
+].map(pattern => `-x "${pattern}"`).join(' ');
+
+execSync(`zip -r dist/woonoow.zip . ${excludes}`, { stdio: 'inherit' });
 
 console.log('✅ Packed: dist/woonoow.zip');