Fix test failures on macOS by resolving symlinks in allowed directories

[semihbkgr]

Tests were failing on macOS because t.TempDir() returns a directory that is a symlink. The allowedDirs configuration did not include the resolved target of the symlink, causing access checks to fail.

Solution

• Introduced a helper function resolveAllowedDirs to handle symlink resolution for directories.
• This function ensures that both the original paths and their resolved symlink counterparts are included in the allowedDirs list.
• Updated all relevant tests to use resolveAllowedDirs when setting up allowedDirs.