Update README to reflect changes in test infrastructure organization and task decomposition workflow. Remove obsolete E2E test templates and clarify input specifications for integration tests. Enhance documentation for planning and implementation phases, including new directory structures and task management processes.

.cursor/rules/python.mdc

@@ -0,0 +1,17 @@
+---
+description: "Python coding conventions: PEP 8, type hints, pydantic, pytest, async patterns, project structure"
+globs: ["**/*.py", "**/pyproject.toml", "**/requirements*.txt"]
+---
+# Python
+
+- Follow PEP 8: snake_case for functions/variables, PascalCase for classes, UPPER_CASE for constants
+- Use type hints on all function signatures; validate with `mypy` or `pyright`
+- Use `pydantic` for data validation and serialization
+- Import order: stdlib -> third-party -> local; use absolute imports
+- Use `src/` layout to separate app code from project files
+- Use context managers (`with`) for resource management
+- Catch specific exceptions, never bare `except:`; use custom exception classes
+- Use `async`/`await` with `asyncio` for I/O-bound concurrency
+- Use `pytest` for testing (not `unittest`); fixtures for setup/teardown
+- Use virtual environments (`venv` or `poetry`); pin dependencies
+- Format with `black`; lint with `ruff` or `flake8`