feat: return generation metadata with core results (#2206)

examples/server/CMakeLists.txt

@@ -64,8 +64,10 @@ endif()
 
 add_executable(${TARGET}
     ../common/common.cpp
+    ../common/generation_metadata.cpp
     ../common/log.cpp
     ../common/media_io.cpp
+    ../common/media_metadata.cpp
     main.cpp
     runtime.cpp
     model_catalog.cpp