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/css-tree/lib/lexer/trace.js

@@ -1,4 +1,4 @@
-function getTrace(node) {
+export function getTrace(node) {
     function shouldPutToTrace(syntax) {
         if (syntax === null) {
             return false;
@@ -14,7 +14,7 @@ function getTrace(node) {
     function hasMatch(matchNode) {
         if (Array.isArray(matchNode.match)) {
             // use for-loop for better perfomance
-            for (var i = 0; i < matchNode.match.length; i++) {
+            for (let i = 0; i < matchNode.match.length; i++) {
                 if (hasMatch(matchNode.match[i])) {
                     if (shouldPutToTrace(matchNode.syntax)) {
                         result.unshift(matchNode.syntax);
@@ -34,7 +34,7 @@ function getTrace(node) {
         return false;
     }
 
-    var result = null;
+    let result = null;
 
     if (this.matched !== null) {
         hasMatch(this.matched);
@@ -43,8 +43,20 @@ function getTrace(node) {
     return result;
 }
 
+export function isType(node, type) {
+    return testNode(this, node, match => match.type === 'Type' && match.name === type);
+}
+
+export function isProperty(node, property) {
+    return testNode(this, node, match => match.type === 'Property' && match.name === property);
+}
+
+export function isKeyword(node) {
+    return testNode(this, node, match => match.type === 'Keyword');
+}
+
 function testNode(match, node, fn) {
-    var trace = getTrace.call(match, node);
+    const trace = getTrace.call(match, node);
 
     if (trace === null) {
         return false;
@@ -52,28 +64,3 @@ function testNode(match, node, fn) {
 
     return trace.some(fn);
 }
-
-function isType(node, type) {
-    return testNode(this, node, function(matchNode) {
-        return matchNode.type === 'Type' && matchNode.name === type;
-    });
-}
-
-function isProperty(node, property) {
-    return testNode(this, node, function(matchNode) {
-        return matchNode.type === 'Property' && matchNode.name === property;
-    });
-}
-
-function isKeyword(node) {
-    return testNode(this, node, function(matchNode) {
-        return matchNode.type === 'Keyword';
-    });
-}
-
-module.exports = {
-    getTrace: getTrace,
-    isType: isType,
-    isProperty: isProperty,
-    isKeyword: isKeyword
-};