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/cssnano-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cssnano-utils",
-  "version": "3.1.0",
+  "version": "5.0.1",
   "repository": "cssnano/cssnano",
   "main": "src/index.js",
   "types": "types/index.d.ts",
@@ -10,7 +10,7 @@
     "url": "https://github.com/cssnano/cssnano/issues"
   },
   "engines": {
-    "node": "^10 || ^12 || >=14.0"
+    "node": "^18.12.0 || ^20.9.0 || >=22.0"
   },
   "files": [
     "src",
@@ -19,10 +19,10 @@
   ],
   "license": "MIT",
   "devDependencies": {
-    "postcss": "^8.2.15"
+    "postcss": "^8.5.3",
+    "postcss-value-parser": "^4.2.0"
   },
   "peerDependencies": {
-    "postcss": "^8.2.15"
-  },
-  "readme": "# cssnano-utils\n\nUtility methods and plugin for cssnano projects\n\n## List of methods and plugin(s)\n\n| **utility methods** | **description**                                                           |\n| ------------------- | ------------------------------------------------------------------------- |\n| `rawCache`          | Postcss plugin to manage the raw value formatting for generated AST nodes |\n| `getArguments`      | Get a list of arguments, separated by a comma.                            |\n| `sameParent`        | Check that two PostCSS nodes share the same parent.                       |\n\n## Contributors\n\nSee [CONTRIBUTORS.md](https://github.com/cssnano/cssnano/blob/master/CONTRIBUTORS.md).\n"
+    "postcss": "^8.4.32"
+  }
 }