Add global Wine preferences tab

Phase 3 of the Wine/Proton stage (decisions 6, 9, 13, 19 in docs/testing/wine-proton.md): a global-only Wine tab modeled on the Pronunciation page, with the controller-only checkbox and a typed editable program list. Wine values flow through the preferences protocol so a global Apply reaches the live Wine settings from Phase 2 with no reader restart. Entries are validated as edited and named in-tab, blocking Apply until fixed; case-insensitive duplicates collapse. Per-application preferences expose no Wine editing and an app-scoped Apply cannot change the governing list.

internal/preferences/native_internal.h

@@ -15,6 +15,7 @@ void prefs_init_modifiers(void);
 void prefs_init_interruption(void);
 void prefs_init_reading_settings(void);
 void prefs_init_pronunciation(void);
+void prefs_init_wine(void);
 void prefs_init_text_attributes(void);
 void prefs_init_tentacles(void);
 #endif