Integrate reviewed AEC3 0.4 migration with audio regressions and wheel CI

.github/workflows/ci.yml

@@ -0,0 +1,61 @@
+name: CI
+on:
+  pull_request:
+    paths: ['src/**', 'tests/**', 'benchmarks/**', 'Cargo.*', 'pyproject.toml', 'uv.lock', '.github/workflows/ci.yml']
+  push:
+    branches: [main]
+    paths: ['src/**', 'tests/**', 'benchmarks/**', 'Cargo.*', 'pyproject.toml', 'uv.lock', '.github/workflows/ci.yml']
+  workflow_dispatch:
+permissions:
+  contents: read
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.10'
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+      - run: cargo fmt --check
+      - run: cargo clippy --locked --all-targets -- -D warnings
+  msrv:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.10'
+      - uses: dtolnay/rust-toolchain@1.88.0
+      - run: cargo check --locked
+  regression:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python: ['3.10', '3.11', '3.12', '3.13', '3.14']
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v7
+      - uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python }}
+      - uses: dtolnay/rust-toolchain@stable
+      - run: python -m pip install maturin numpy pytest
+      - run: maturin build --release --locked --out dist
+      - name: Install built wheel
+        run: python -c "import glob, subprocess, sys; subprocess.check_call([sys.executable, '-m', 'pip', 'install', *glob.glob('dist/*.whl')])"
+      - run: python -m pytest -q
+      - name: Benchmark installed wheel
+        if: matrix.python == '3.12'
+        run: python benchmarks/compare.py --output benchmark.json
+      - uses: actions/upload-artifact@v4
+        if: matrix.python == '3.12'
+        with:
+          name: benchmark-${{ matrix.os }}
+          path: benchmark.json

.gitignore

@@ -1 +1,6 @@
 target/
+.DS_Store
+__pycache__
+.venv/
+.pytest_cache/
+dist/