refactor: 重构上下文管理，合并父节点压入和弹出逻辑，简化节点迭代器实现 #167

	name: Build & Check CI

	on: [push, pull_request]

	jobs:
	ci:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	rust-toolchain: [nightly]
	targets: [x86_64-unknown-linux-gnu, x86_64-unknown-none, riscv64gc-unknown-none-elf, aarch64-unknown-none-softfloat]
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@nightly
	with:
	toolchain: ${{ matrix.rust-toolchain }}
	components: rust-src, clippy, rustfmt
	targets: ${{ matrix.targets }}
	- name: Check rust version
	run: rustc --version --verbose
	- name: Check code format
	run: cargo fmt --all -- --check
	- name: Clippy
	run: cargo clippy --manifest-path ./fdt-parser/Cargo.toml --target ${{ matrix.targets }} --all-features -- -A clippy::new_without_default
	- name: Build
	run: cargo build -p fdt-parser --target ${{ matrix.targets }} --all-features
	- name: Install dtc
	if: ${{ matrix.targets == 'x86_64-unknown-linux-gnu' }}
	run: sudo apt-get install device-tree-compiler
	- name: Unit test
	if: ${{ matrix.targets == 'x86_64-unknown-linux-gnu' }}
	run: cargo test --target ${{ matrix.targets }} -- --nocapture

Provide feedback