Fix code quality violations and exclude Manifest from checks

Document application modes (development/debug/production)
Add global file drop handler, order column normalization, SPA hash fix
Serve CDN assets via /_vendor/ URLs instead of merging into bundles
Add production minification with license preservation
Improve JSON formatting for debugging and production optimization
Add CDN asset caching with CSS URL inlining for production builds
Add three-mode system (development, debug, production)
Update Manifest CLAUDE.md to reflect helper class architecture
Refactor Manifest.php into helper classes for better organization
Pre-manifest-refactor checkpoint: Add app_mode documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/csso/lib/replace/Value.js

@@ -1,18 +1,24 @@
-var resolveName = require('css-tree').property;
-var handlers = {
-    'font': require('./property/font'),
-    'font-weight': require('./property/font-weight'),
-    'background': require('./property/background'),
-    'border': require('./property/border'),
-    'outline': require('./property/border')
+import { property as resolveName } from 'css-tree';
+import font from './property/font.js';
+import fontWeight from './property/font-weight.js';
+import background from './property/background.js';
+import border from './property/border.js';
+import outline from './property/border.js';
+
+const handlers = {
+    'font': font,
+    'font-weight': fontWeight,
+    'background': background,
+    'border': border,
+    'outline': outline
 };
 
-module.exports = function compressValue(node) {
+export default function compressValue(node) {
     if (!this.declaration) {
         return;
     }
 
-    var property = resolveName(this.declaration.property);
+    const property = resolveName(this.declaration.property);
 
     if (handlers.hasOwnProperty(property.basename)) {
         handlers[property.basename](node);