refactor: move generated asset files to src/generated/

- Updated CMakeLists.txt to generate assets.h and assets_data.cc in src/generated/.
- Updated scripts/gen_assets.sh to reflect the new output location.
- Modified asset_packer.cc to generate correct include paths in assets_data.cc.
- Updated source files (main.cc, asset_manager.cc, test_assets.cc) to include headers from the 'generated/' subdirectory.
- Ensured all targets have correct include paths to find generated headers.
- Removed stale generated files from src/.

3 files changed, 4 insertions, 4 deletions

diff --git a/src/main.cc b/src/main.cc
index aa24152..c0f6770 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -2,7 +2,7 @@
 // It serves as the application entry point.
 // Orchestrates platform initialization, main loop, and subsystem coordination.
 
-#include "assets.h" // Include generated asset header
+#include "generated/assets.h" // Include generated asset header
 #include "audio/audio.h"
 #include "audio/gen.h"
 #include "audio/synth.h"
diff --git a/src/tests/test_assets.cc b/src/tests/test_assets.cc
index e782453..ff1cae2 100644
--- a/src/tests/test_assets.cc
+++ b/src/tests/test_assets.cc
@@ -3,9 +3,9 @@
 // Verifies data integrity and size reporting.
 
 #ifdef USE_TEST_ASSETS
-#include "test_assets.h"
+#include "generated/test_assets.h"
 #else
-#include "assets.h"
+#include "generated/assets.h"
 #endif
 
 #include <assert.h>
diff --git a/src/util/asset_manager.cc b/src/util/asset_manager.cc
index 1aa2ef6..33b697b 100644
--- a/src/util/asset_manager.cc
+++ b/src/util/asset_manager.cc
@@ -3,7 +3,7 @@
 // Uses an array lookup for O(1) access to embedded data.
 
 #include "util/asset_manager.h"
-#include "assets.h"
+#include "generated/assets.h"
 
 // These are defined in the generated assets_data.cc
 extern const AssetRecord g_assets[];