chat: UI настройки звука канала (Android toggle + JNI, desktop через C API) + trampoline

src/chat/chat_core.c

@@ -288,6 +288,13 @@ void chat_core_set_sound_on_message(struct UTUN_INSTANCE* inst, const char* ch_i
     chat_sync_broadcast_sound_setting(inst, ch_id, on ? 1 : 0);
 }
 
+void chat_core_set_sound_on_message_trampoline(void* arg) {
+    struct chat_sound_arg* a = (struct chat_sound_arg*)arg;
+    if (!a) return;
+    chat_core_set_sound_on_message(a->inst, a->ch_id, a->on);
+    u_free(arg);
+}
+
 /* ─── headless API ─── */
 
 static void json_escape(const char* src, char* dst, size_t dst_sz) {

src/chat/chat_core.h

@@ -125,6 +125,9 @@ void chat_core_save_ui_state(struct UTUN_INSTANCE* inst, const char* key, const
 int  chat_core_get_sound_on_message(struct UTUN_INSTANCE* inst, const char* ch_id);
 void chat_core_set_sound_on_message(struct UTUN_INSTANCE* inst, const char* ch_id, int on);
 
+struct chat_sound_arg { struct UTUN_INSTANCE* inst; char ch_id[64]; int on; };
+void chat_core_set_sound_on_message_trampoline(void* arg);
+
 struct save_ui_state_arg { struct UTUN_INSTANCE* inst; char data[256]; };
 void chat_core_save_ui_state_trampoline(void* arg);