v1.4.0

New

• Module attribute duplicate detection — Custom module attributes like @extensions, @timeout, or @fields are now fingerprinted and reported when they appear with the same value in multiple modules. Previously all @ nodes were blanket-excluded.
• ignored_attributes config — Fine-grained control over which attribute names to skip. Defaults cover documentation and type-system attributes (moduledoc, doc, type, spec, impl, behaviour, etc. — 26 total). Custom attributes are fingerprinted automatically.
• --ignore-attribute CLI flag — Add project-specific attribute names to the ignore list (repeatable, additive to defaults).

Changed

• excluded_macros default is now [] — Module attributes are no longer excluded via excluded_macros: [:@]. Instead, the new ignored_attributes list handles attribute filtering with per-name granularity. Projects that explicitly set excluded_macros: [:@, ...] in .ex_dna.exs can remove :@.