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/cjs/syntax/scope/default.cjs

@@ -0,0 +1,76 @@
+'use strict';
+
+const types = require('../../tokenizer/types.cjs');
+
+const NUMBERSIGN = 0x0023;  // U+0023 NUMBER SIGN (#)
+const ASTERISK = 0x002A;    // U+002A ASTERISK (*)
+const PLUSSIGN = 0x002B;    // U+002B PLUS SIGN (+)
+const HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-)
+const SOLIDUS = 0x002F;     // U+002F SOLIDUS (/)
+const U = 0x0075;           // U+0075 LATIN SMALL LETTER U (u)
+
+function defaultRecognizer(context) {
+    switch (this.tokenType) {
+        case types.Hash:
+            return this.Hash();
+
+        case types.Comma:
+            return this.Operator();
+
+        case types.LeftParenthesis:
+            return this.Parentheses(this.readSequence, context.recognizer);
+
+        case types.LeftSquareBracket:
+            return this.Brackets(this.readSequence, context.recognizer);
+
+        case types.String:
+            return this.String();
+
+        case types.Dimension:
+            return this.Dimension();
+
+        case types.Percentage:
+            return this.Percentage();
+
+        case types.Number:
+            return this.Number();
+
+        case types.Function:
+            return this.cmpStr(this.tokenStart, this.tokenEnd, 'url(')
+                ? this.Url()
+                : this.Function(this.readSequence, context.recognizer);
+
+        case types.Url:
+            return this.Url();
+
+        case types.Ident:
+            // check for unicode range, it should start with u+ or U+
+            if (this.cmpChar(this.tokenStart, U) &&
+                this.cmpChar(this.tokenStart + 1, PLUSSIGN)) {
+                return this.UnicodeRange();
+            } else {
+                return this.Identifier();
+            }
+
+        case types.Delim: {
+            const code = this.charCodeAt(this.tokenStart);
+
+            if (code === SOLIDUS ||
+                code === ASTERISK ||
+                code === PLUSSIGN ||
+                code === HYPHENMINUS) {
+                return this.Operator(); // TODO: replace with Delim
+            }
+
+            // TODO: produce a node with Delim node type
+
+            if (code === NUMBERSIGN) {
+                this.error('Hex or identifier is expected', this.tokenStart + 1);
+            }
+
+            break;
+        }
+    }
+}
+
+module.exports = defaultRecognizer;