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/postcss-calc/src/lib/reducer.js

@@ -17,10 +17,38 @@ function isValueType(node) {
     case 'ChValue':
     case 'RemValue':
     case 'VhValue':
+    case 'SvhValue':
+    case 'LvhValue':
+    case 'DvhValue':
     case 'VwValue':
+    case 'SvwValue':
+    case 'LvwValue':
+    case 'DvwValue':
     case 'VminValue':
+    case 'SvminValue':
+    case 'LvminValue':
+    case 'DvminValue':
     case 'VmaxValue':
+    case 'SvmaxValue':
+    case 'LvmaxValue':
+    case 'DvmaxValue':
+    case 'VbValue':
+    case 'SvbValue':
+    case 'LvbValue':
+    case 'DvbValue':
+    case 'ViValue':
+    case 'SviValue':
+    case 'LviValue':
+    case 'DviValue':
+    case 'CqwValue':
+    case 'CqhValue':
+    case 'CqiValue':
+    case 'CqbValue':
+    case 'CqminValue':
+    case 'CqmaxValue':
     case 'PercentageValue':
+    case 'LhValue':
+    case 'RlhValue':
     case 'Number':
       return true;
   }
@@ -333,6 +361,12 @@ function includesNoCssProperties(node) {
  * @return {import('../parser').CalcNode}
  */
 function reduce(node, precision) {
+  if (
+    node.type === 'MathExpression' &&
+    (node.left.type === 'CalcKeyword' || node.right.type === 'CalcKeyword')
+  ) {
+    return node;
+  }
   if (node.type === 'MathExpression') {
     if (isAddSubOperator(node.operator)) {
       // reduceAddSubExpression will call reduce recursively

node_modules/postcss-calc/src/lib/stringifier.js

@@ -31,6 +31,8 @@ function stringify(node, prec) {
       let str = '';
       if (left.type === 'MathExpression' && order[op] < order[left.operator]) {
         str += `(${stringify(left, prec)})`;
+      } else if (left.type === 'CalcKeyword') {
+        str += left.value;
       } else {
         str += stringify(left, prec);
       }
@@ -42,6 +44,8 @@ function stringify(node, prec) {
         order[op] < order[right.operator]
       ) {
         str += `(${stringify(right, prec)})`;
+      } else if (right.type === 'CalcKeyword') {
+        str += right.value;
       } else {
         str += stringify(right, prec);
       }
@@ -54,6 +58,8 @@ function stringify(node, prec) {
       return node.value.toString();
     case 'ParenthesizedExpression':
       return `(${stringify(node.content, prec)})`;
+    case 'CalcKeyword':
+      return node.value;
     default:
       return round(node.value, prec) + node.unit;
   }
@@ -73,12 +79,19 @@ module.exports = function (calc, node, originalValue, options, result, item) {
   let str = stringify(node, options.precision);
 
   const shouldPrintCalc =
-    node.type === 'MathExpression' || node.type === 'Function';
+    node.type === 'MathExpression' ||
+    node.type === 'Function' ||
+    node.type === 'ParenthesizedExpression' ||
+    node.type === 'CalcKeyword';
 
   if (shouldPrintCalc) {
     // if calc expression couldn't be resolved to a single value, re-wrap it as
     // a calc()
-    str = `${calc}(${str})`;
+    if (node.type === 'ParenthesizedExpression') {
+      str = `${calc}${str}`;
+    } else {
+      str = `${calc}(${str})`;
+    }
 
     // if the warnWhenCannotResolve option is on, inform the user that the calc
     // expression could not be resolved to a single value

node_modules/postcss-calc/src/lib/transform.js

@@ -7,7 +7,7 @@ const { parser } = require('../parser.js');
 const reducer = require('./reducer.js');
 const stringifier = require('./stringifier.js');
 
-const MATCH_CALC = /((?:-(moz|webkit)-)?calc)/i;
+const MATCH_CALC = /((?:-(moz|webkit)-)?calc(?!-))/i;
 
 /**
  * @param {string} value