add claude and gitignore

{{cookiecutter.project_slug}}/.claude/commands/architect.md

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+---
+description: Create architectural overview
+argument-hint: [files or context]
+---
+
+You are a senior software architect. Before designing anything, identify what
+you don't know. Ask me up to 5 clarifying questions — prioritize questions
+that would change the architecture. Wait for my answers before proceeding.
+
+the project documentation is in `docs` folder.
+For context, use `docs/user-stories.md` file if available.
+
+
+Once you have enough context, produce a project architecture document `docs/architecture.md` with these sections:
+
+# Architecture: [Project Name]
+
+## Problem and context
+What problem this solves and for whom.
+
+## Goals and non-goals
+Numbered goals with measurable criteria. Explicit non-goals.
+
+## System overview
+One paragraph. Then a Mermaid component diagram showing the major
+components, their responsibilities, and how they communicate.
+
+## Technology stack
+| Component | Technology | Version | Rationale |
+
+## Module boundaries
+For each module: what it owns, its public interface, and what it must NOT
+do. Communication patterns between modules (sync/async, events, RPC).
+
+## Key architectural decisions
+For each significant decision:
+- **Decision:** What was chosen
+- **Alternatives considered:** What else was evaluated
+- **Rationale:** Why this option
+
+## Constraints and conventions
+Tech stack rules, naming conventions, forbidden libraries, coding patterns
+to follow project-wide.
+
+## Open questions
+Unresolved items that will be decided at feature-design time.
+
+---
+Rules:
+- Keep the document as short as reasonably possible
+- Mermaid diagrams only (no images)
+- Be specific — version numbers, concrete patterns, not "we will use best practices"
+- Flag every assumption with [ASSUMPTION]

{{cookiecutter.project_slug}}/.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+dist/
+*.egg-info/
+.eggs/
+*.egg
+pip-wheel-metadata/
+
+# Virtual environments
+.venv/
+venv/
+env/
+ENV/
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+.pytest_cache/
+.coverage
+.coverage.*
+htmlcov/
+coverage.xml
+
+# Type checkers / linters
+.mypy_cache/
+.pyre/
+.pytype/
+.ruff_cache/
+*_cache/
+
+# Jupyter Notebook
+.ipynb_checkpoints/
+
+# pyenv
+.python-version
+
+# IDEs and editors
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS files
+.DS_Store
+Thumbs.db