fix(dlx): normalize paths for cross-platform isInSocketDlx comparison

Fix path comparison in isInSocketDlx() to work correctly on Windows:
- Normalize absolutePath using normalizePath() for consistent forward slashes
- Use '/' separator instead of path.sep for normalized path comparison
- getSocketDlxDir() already returns normalized paths (forward slashes)
- path.resolve() returns platform-specific paths (backslashes on Windows)

Without normalization, Windows paths with backslashes failed to match
the DLX directory path with forward slashes, causing test failures.

Resolves Windows CI test failure: 'should return true for paths within DLX directory'

Author: jdalton

src/dlx.ts

@@ -178,10 +178,11 @@ export function isInSocketDlx(filePath: string): boolean {
 
   const path = getPath()
   const dlxDir = getSocketDlxDir()
-  const absolutePath = path.resolve(filePath)
+  const absolutePath = normalizePath(path.resolve(filePath))
 
   // Check if the absolute path starts with the DLX directory.
-  return absolutePath.startsWith(dlxDir + path.sep)
+  // Both paths are normalized to use forward slashes for consistent comparison.
+  return absolutePath.startsWith(dlxDir + '/')
 }
 
 /**