feat(protocan): добавь общий ABI для GUI

c/protocan-transport/ports/android/README.md

@@ -0,0 +1,10 @@
+# Android port
+
+`Android.mk` builds `libsetcore.so` from the same C99 sources used by MCU and
+desktop builds. `setcore_jni.c` contains only JNI marshalling; protocol rules
+remain in the core. Add the Kotlin directory as an Android source directory
+and include this `Android.mk` from the application NDK build.
+
+The JNI streaming parser returns fixed 15-byte records
+`SEQ | FLAGS | CAN_ID_LE | DLC | DATA[8]`. Dynamic allocation is confined to
+the Android adapter; the portable core remains allocation free.