M0: Bootstrap onex-change-control Poetry package + repo structure + baseline CI

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: latest
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+      - name: Install dependencies
+        run: poetry install --no-interaction
+      - name: Run ruff format check
+        run: poetry run ruff format --check .
+      - name: Run ruff lint
+        run: poetry run ruff check .
+
+  type-check:
+    name: Type Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: latest
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+      - name: Install dependencies
+        run: poetry install --no-interaction
+      - name: Run mypy
+        run: poetry run mypy src/
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: latest
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+      - name: Install dependencies
+        run: poetry install --no-interaction
+      - name: Run tests
+        run: poetry run pytest
+

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
+venv/
+env/
+ENV/
+.venv/
+
+# Poetry
+# poetry.lock - committed to ensure reproducible builds
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+
+# OS
+.DS_Store
+Thumbs.db
+

pyproject.toml

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+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
+
+[tool.poetry]
+name = "onex-change-control"
+version = "0.1.0"
+description = "ONEX Change Control - Canonical governance + schema distribution + enforcement tooling to prevent cross-repo drift"
+authors = ["OmniNode Team <team@omninode.ai>"]
+license = "MIT"
+readme = "README.md"
+packages = [{include = "onex_change_control", from = "src"}]
+
+[tool.poetry.dependencies]
+python = "^3.12"
+pydantic = "^2.11.7"
+
+[tool.poetry.group.dev.dependencies]
+pytest = "^8.4.0"
+pytest-cov = "^6.0.0"
+mypy = "^1.13.0"
+ruff = "^0.14.7"
+types-pyyaml = "^6.0.12.20250822"
+
+[tool.ruff]
+target-version = "py312"
+line-length = 88
+exclude = [
+    "**/__pycache__/**",
+    "**/site-packages/**",
+]
+
+[tool.ruff.format]
+quote-style = "double"
+indent-style = "space"
+skip-magic-trailing-comma = false
+line-ending = "auto"
+
+[tool.ruff.lint]
+select = ["E", "F", "W", "C90", "I", "N", "UP", "YTT", "S", "BLE", "FBT", "B", "A", "COM", "C4", "DTZ", "T10", "EM", "EXE", "ISC", "ICN", "G", "INP", "PIE", "T20", "PT", "Q", "RSE", "RET", "SLF", "SIM", "TID", "TCH", "ARG", "PTH", "ERA", "PD", "PGH", "PL", "TRY", "NPY", "RUF"]
+ignore = [
+    "S101",      # Allow assert statements in tests
+    "COM812",    # Trailing comma rule conflicts with formatter
+]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py", "*_test.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]
+addopts = [
+    "--strict-markers",
+    "--strict-config",
+    "-ra",
+    "--tb=short",
+]
+
+[tool.mypy]
+plugins = ["pydantic.mypy"]
+python_version = "3.12"
+warn_return_any = true
+warn_unused_configs = true
+disallow_untyped_defs = true
+mypy_path = "src"
+namespace_packages = true
+explicit_package_bases = true
+
+[tool.pydantic-mypy]
+init_forbid_extra = true
+init_typed = false
+warn_required_dynamic_aliases = true
+warn_untyped_fields = true
+

src/onex_change_control/__init__.py

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+"""ONEX Change Control - Canonical governance + schema distribution.
+
+This package provides:
+- Versioned Pydantic schema models for drift-control artifacts
+- Deterministic JSON Schema exports for CI consumption
+- Local, no-network validation tooling
+"""
+
+__version__ = "0.1.0"

tests/__init__.py

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+"""Tests for onex_change_control package."""

tests/test_import.py

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+"""Test that the package imports cleanly."""
+
+import onex_change_control
+
+
+def test_package_imports() -> None:
+    """Test that the package can be imported."""
+    assert onex_change_control.__version__ == "0.1.0"