fix(windows): normalize inventory skip grouping

Strip only balanced parentheses that enclose a complete skip expression before applying the Windows-false ternary exemption.

Generated-by: Maka

Author: me2seeks

scripts/windows-test-inventory.mjs

@@ -223,7 +223,7 @@ function classifySkip(path, title, expression) {
 }
 
 export function excludesWindows(expression) {
-  const compact = expression.replaceAll(/\s+/gu, ' ');
+  const compact = stripBalancedOuterParentheses(expression.replaceAll(/\s+/gu, ' ').trim());
   // A Windows-only regression commonly uses `false` on Windows and a skip
   // reason elsewhere. Exempt only when that ternary is the complete skip
   // expression: a surrounding boolean expression may still skip on Windows.
@@ -240,6 +240,39 @@ export function excludesWindows(expression) {
   );
 }
 
+function stripBalancedOuterParentheses(expression) {
+  let compact = expression;
+  while (hasCompleteOuterParentheses(compact)) compact = compact.slice(1, -1).trim();
+  return compact;
+}
+
+function hasCompleteOuterParentheses(expression) {
+  if (!expression.startsWith('(') || !expression.endsWith(')')) return false;
+  let depth = 0;
+  let quote;
+  let escaped = false;
+  for (let index = 0; index < expression.length; index += 1) {
+    const char = expression[index];
+    if (quote) {
+      if (escaped) escaped = false;
+      else if (char === '\\') escaped = true;
+      else if (char === quote) quote = undefined;
+      continue;
+    }
+    if (char === "'" || char === '"' || char === '`') {
+      quote = char;
+      continue;
+    }
+    if (char === '(') depth += 1;
+    else if (char === ')') {
+      depth -= 1;
+      if (depth === 0) return index === expression.length - 1;
+      if (depth < 0) return false;
+    }
+  }
+  return false;
+}
+
 function nearbyTestTitle(lines, skipIndex) {
   const context = lines.slice(Math.max(0, skipIndex - 12), skipIndex + 1).join('\n');
   const matches = [...context.matchAll(/\b(?:test|it|describe)\s*\(\s*(['"`])([\s\S]+?)\1/gu)];

scripts/windows-test-inventory.test.mjs

@@ -7,6 +7,10 @@ test('exempts a complete Windows-false ternary from the skip inventory', () => {
     excludesWindows("process.platform === 'win32' ? false : 'Windows-only regression'"),
     false,
   );
+  assert.equal(
+    excludesWindows("((process.platform === 'win32' ? false : 'Windows-only regression'))"),
+    false,
+  );
 });
 
 test('keeps a composite expression that can still skip on Windows', () => {
@@ -16,6 +20,12 @@ test('keeps a composite expression that can still skip on Windows', () => {
     ),
     true,
   );
+  assert.equal(
+    excludesWindows(
+      "(process.platform === 'win32' ? false : 'Unix-only') || (process.env.CI === '1')",
+    ),
+    true,
+  );
 });
 
 test('keeps a direct Windows exclusion in the skip inventory', () => {