android: fix NDK build — add Opus sources, fix Kotlin composable context, fix bridge db_path param

tools/chatgui-android/app/src/main/cpp/CMakeLists.txt

@@ -10,13 +10,24 @@ set(TOOLS_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../..)
 include(${CFG_DIR}/utun_sources.cmake)
 utun_setup_sources("${LIB_DIR}" "${SRC_DIR}" "${CFG_DIR}" "${TOOLS_DIR}")
 
-# Exclude opus from Android (no prebuilt for NDK)
-list(FILTER UTUN_SOURCES EXCLUDE REGEX "opus_codec\\.c$")
+# Include Opus codec wrapper (was excluded before voice support)
+# list(FILTER UTUN_SOURCES EXCLUDE REGEX "opus_codec\\.c$")
 
 # Exclude tun_windows and tun_freebsd (Android is Linux-like)
 list(FILTER UTUN_SOURCES EXCLUDE REGEX "tun_windows\\.c$")
 list(FILTER UTUN_SOURCES EXCLUDE REGEX "tun_freebsd\\.c$")
 
+# Add libopus sources (for voice recording)
+file(GLOB_RECURSE _OPUS_SRC "${LIB_DIR}/libopus/src/*.c"
+     "${LIB_DIR}/libopus/celt/*.c" "${LIB_DIR}/libopus/silk/*.c"
+     "${LIB_DIR}/libopus/silk/float/*.c")
+list(FILTER _OPUS_SRC EXCLUDE REGEX "/x86/")
+list(APPEND UTUN_SOURCES ${_OPUS_SRC})
+list(APPEND UTUN_INCLUDE_DIRS "${LIB_DIR}/libopus" "${LIB_DIR}/libopus/include"
+     "${LIB_DIR}/libopus/celt" "${LIB_DIR}/libopus/silk" "${LIB_DIR}/libopus/silk/float")
+# Opus requires these to be defined (or HAVE_CONFIG_H + config.h with VAR_ARRAYS)
+list(APPEND UTUN_DEFINES OPUS_BUILD VAR_ARRAYS USE_ALLOCA)
+
 # Prebuilt OpenSSL (cross-compiled for Android)
 set(OPENSSL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/openssl/${ANDROID_ABI})
 add_library(openssl_crypto STATIC IMPORTED)