Anvil v1.0.0 -- Arduino build tool with HAL and test scaffolding

Single-binary CLI that scaffolds testable Arduino projects, compiles,
uploads, and monitors serial output. Templates embed a hardware
abstraction layer, Google Mock infrastructure, and CMake-based host
tests so application logic can be verified without hardware.

Commands: new, doctor, setup, devices, build, upload, monitor
39 Rust tests (21 unit, 18 integration)
Cross-platform: Linux and Windows

templates/basic/test/CMakeLists.txt.tmpl

@@ -0,0 +1,47 @@
+cmake_minimum_required(VERSION 3.14)
+project({{PROJECT_NAME}}_tests LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# --------------------------------------------------------------------------
+# Google Test (fetched automatically on first build)
+# --------------------------------------------------------------------------
+include(FetchContent)
+FetchContent_Declare(
+    googletest
+    GIT_REPOSITORY https://github.com/google/googletest.git
+    GIT_TAG        v1.14.0
+)
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+FetchContent_MakeAvailable(googletest)
+
+enable_testing()
+
+# --------------------------------------------------------------------------
+# Include paths -- same headers the Arduino sketch uses
+# --------------------------------------------------------------------------
+set(LIB_DIR ${CMAKE_SOURCE_DIR}/../lib)
+
+include_directories(
+    ${LIB_DIR}/hal
+    ${LIB_DIR}/app
+    ${CMAKE_SOURCE_DIR}/mocks
+)
+
+# --------------------------------------------------------------------------
+# Unit tests (Google Mock)
+# --------------------------------------------------------------------------
+add_executable(test_unit
+    test_unit.cpp
+)
+target_link_libraries(test_unit
+    GTest::gtest_main
+    GTest::gmock
+)
+
+# --------------------------------------------------------------------------
+# Register with CTest
+# --------------------------------------------------------------------------
+include(GoogleTest)
+gtest_discover_tests(test_unit)