Do not build tests for release

README.md

@@ -204,10 +204,10 @@ This is a modern C++20 rewrite of [ptouch-print](https://git.familie-radermacher
 
 **Build script:**
 ```bash
-# Release build
+# Release build (tests disabled for faster builds)
 ./scripts/build.sh release
 
-# Debug build
+# Debug build (tests enabled)
 ./scripts/build.sh debug
 
 # Debug with tests
@@ -223,6 +223,8 @@ This is a modern C++20 rewrite of [ptouch-print](https://git.familie-radermacher
 ./scripts/build.sh --help
 ```
 
+**Note:** Tests are only built in debug mode to keep release builds fast and small. Release builds do not include test binaries or link against gtest/gmock.
+
 **Running tests:**
 ```bash
 # Using build script