Fix scrollback turn duplication: never trim frozen prefix mid-run #33

	name: ci

	# Lightweight build + test gate so every master commit / PR gets a status
	# check (the green tick). NOT a release: a single native Linux build against
	# the system's shared libs (no musl/static, no QEMU cross-builds, no
	# packaging) — those run in release.yml on a tag. Goal here is "does it still
	# compile and do the smoke tests pass", fast.

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	# Cancel an in-flight run when newer commits land on the same ref.
	concurrency:
	group: ci-${{ github.ref }}
	cancel-in-progress: true

	permissions:
	contents: read

	jobs:
	build-test:
	name: build + test (linux x86_64)
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v5
	- name: Init maya submodule (HTTPS)
	run: \|
	git config --global url."https://github.com/".insteadOf "git@github.com:"
	git submodule update --init --recursive

	- name: Install deps
	# GCC 14 for C++26 (std::expected / std::format); ubuntu-latest's
	# default g++ can lag. Shared libs are fine here — this isn't a
	# distributable build.
	run: \|
	sudo apt-get update
	sudo apt-get install -y --no-install-recommends \
	g++-14 cmake ninja-build pkg-config \
	libssl-dev libnghttp2-dev zlib1g-dev

	- name: Configure
	env:
	CC: gcc-14
	CXX: g++-14
	run: \|
	cmake -S . -B build -GNinja -DCMAKE_BUILD_TYPE=Release \
	-DAGENTTY_AUTO_PULL_MAYA=OFF \
	-DAGENTTY_USE_MIMALLOC=OFF \
	-DAGENTTY_BUILD_TESTS=ON

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

	- name: Test
	run: ctest --test-dir build --output-on-failure

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