Fix DMOD_ENABLE_REGISTRATION multiple definition linker errors

[Copilot]

Uncommenting DMOD_ENABLE_REGISTRATION in main.c caused multiple definition linker errors. The root cause: dmlist.c unconditionally defined DMOD_ENABLE_REGISTRATION, creating duplicate registration structs when main.c also defined it before including dmlist.h.

Changes

• lib/dmlist/src/dmlist.c: Apply same guard pattern as dmod_system.c:

  #ifndef DMOD_EXTERNAL_REGISTRATION
  #   define DMOD_ENABLE_REGISTRATION
  #endif

• lib/CMakeLists.txt: Pass DMOD_EXTERNAL_REGISTRATION compile definition to dmlist target when enabled

• src/main.c: Uncomment DMOD_ENABLE_REGISTRATION to enable the feature

Note

The dmlist submodule commit needs to be pushed upstream to choco-technologies/dmlist before CI will pass.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Rozwiązać problem linkowania z DMOD_ENABLE_REGISTRATION</issue_title>
<issue_description>Jak się odkomentuje DMOD_ENABLE_REGISTRATION w main.c to z jakiegoś powodu widzi wiele definicji rejestracji. Trzeba ustalić przyczynę i rozwiązać problem, aby można było to odkomentować i żeby rejestracje dmlist były widziane przez dmod</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Rozwiązać problem linkowania z DMOD_ENABLE_REGISTRATION #45

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