feat(cortex-m3): peripheral IRQ pipeline — C2/C1/C3 #14

	name: Cross-Compile & E2E

	on:
	push:
	branches: [main, develop]
	pull_request:
	branches: [main, develop]
	workflow_dispatch:

	jobs:
	firmware-and-e2e:
	name: Firmware Build + E2E Test
	runs-on: ubuntu-latest
	timeout-minutes: 15
	env:
	CC: gcc-14
	CXX: g++-14
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: Install host & ARM toolchains
	run: \|
	sudo apt-get update
	sudo apt-get install -y g++-14 gcc-arm-none-eabi binutils-arm-none-eabi

	- name: Verify ARM toolchain
	run: arm-none-eabi-gcc --version

	- name: Cache GoogleTest
	uses: actions/cache@v4
	with:
	path: build/_deps/googletest-src
	key: googletest-v1.14.0-${{ runner.os }}

	- name: Configure
	run: cmake -B build -DCMAKE_BUILD_TYPE=Debug

	- name: Build
	run: cmake --build build -j "$(nproc)"

	- name: Test (including E2E)
	working-directory: build
	run: ctest --output-on-failure --timeout 120 -j "$(nproc)"

	- name: Upload test logs on failure
	if: failure()
	uses: actions/upload-artifact@v4
	with:
	name: cross-compile-test-logs
	path: build/Testing/

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