fix: extract hideHeaders from destructuring to preserve explicit false

The destructuring default only fires when the property is undefined,
making the options.hideHeaders ?? fallback redundant inside it. Extract
to a separate const with ?? so explicit false from callers is preserved.

Author: BYK

src/lib/formatters/text-table.ts

@@ -106,10 +106,14 @@ export function renderTextTable(
     minWidths = [],
     shrinkable = [],
     truncate = false,
-    hideHeaders = options.hideHeaders ?? headers.every((h) => h.trim() === ""),
     rowSeparator = false,
   } = options;
 
+  // Auto-detect empty headers when not explicitly set by the caller.
+  // Extracted from destructuring because `??` preserves explicit `false`.
+  const hideHeaders =
+    options.hideHeaders ?? headers.every((h) => h.trim() === "");
+
   const border = BorderChars[borderStyle];
   const colCount = headers.length;
   if (colCount === 0) {