build: exclude development files from publishing

.comfyignore

@@ -0,0 +1,33 @@
+# Tests, plans, and development-only dependencies
+/tests/
+/plans/
+/node_modules/
+/package.json
+/package-lock.json
+/demo/
+
+# Repository automation and agent/editor configuration
+/.git/
+/.github/
+/.codex/
+/.agents/
+/.vscode/
+/.idea/
+/AGENTS.md
+/AGENTS-LOCAL.md
+/.gitignore
+/.comfyignore
+
+# Local environments, generated bytecode, and test/tool caches
+/venv/
+/.venv/
+__pycache__/
+*.py[cod]
+.pytest_cache/
+.ruff_cache/
+.mypy_cache/
+.pytest-tmp/
+.coverage
+.coverage.*
+coverage.xml
+htmlcov/