feat: add Google Gemini provider via OpenAI-compatible endpoint

CONTRIBUTING.md

@@ -0,0 +1,109 @@
+# Contributing to OpenPlanter
+
+Thanks for your interest in contributing. This guide covers setup, conventions, and the pull request process.
+
+## Development Setup
+
+```bash
+# Clone the repository
+git clone https://github.com/ShinMegamiBoson/OpenPlanter.git
+cd OpenPlanter
+
+# Create a virtual environment
+python3 -m venv .venv
+source .venv/bin/activate
+
+# Install in editable mode with dev dependencies
+pip install -e ".[dev]"
+```
+
+Requires Python 3.10+.
+
+## Running Tests
+
+```bash
+# Full test suite (excludes live API tests)
+pytest tests/ --ignore=tests/test_live_models.py --ignore=tests/test_integration_live.py
+
+# Single test file
+pytest tests/test_engine.py
+
+# With verbose output
+pytest tests/test_tools.py -v
+```
+
+Live API tests require real provider keys and are excluded by default. To run them:
+
+```bash
+pytest tests/test_live_models.py
+```
+
+## Linting and Type Checking
+
+```bash
+# Lint
+ruff check agent/ tests/
+
+# Auto-fix lint issues
+ruff check --fix agent/ tests/
+
+# Type check
+mypy agent/
+```
+
+## Pull Request Process
+
+1. **Fork and branch.** Create a feature branch from `main`:
+   ```bash
+   git checkout -b feat/your-feature main
+   ```
+
+2. **Keep changes focused.** One PR should do one thing. If you find an unrelated issue while working, file it separately.
+
+3. **Write tests.** If your change alters behaviour, add or update tests. Prefer fast unit tests over integration tests.
+
+4. **Run checks locally** before pushing:
+   ```bash
+   ruff check agent/ tests/
+   mypy agent/
+   pytest tests/ --ignore=tests/test_live_models.py --ignore=tests/test_integration_live.py
+   ```
+
+5. **Write a clear commit message.** Use the format `<type>: <description>` where type is one of: `feat`, `fix`, `refactor`, `docs`, `chore`, `test`. Keep the first line under 72 characters.
+
+6. **Open the PR** against `main` with a description of what changed and why.
+
+## Branch Naming
+
+Use the pattern `<type>/<short-description>`:
+
+- `feat/async-model-support`
+- `fix/sse-flush-on-eof`
+- `docs/contributing-guide`
+- `refactor/tool-dispatch-registry`
+
+## What to Contribute
+
+Good first contributions:
+
+- Bug fixes with a failing test
+- Documentation improvements
+- New test coverage for untested paths
+- Performance improvements with benchmarks
+
+Larger contributions (new tools, provider integrations, architectural changes) benefit from opening an issue first to discuss the approach.
+
+## Code of Conduct
+
+This project follows the [Contributor Covenant](https://www.contributor-covenant.org/version/2/1/code_of_conduct/), version 2.1. In short:
+
+- Be respectful and constructive.
+- No harassment, trolling, or personal attacks.
+- Assume good intent; ask before assuming.
+- Maintainers may remove contributions or ban participants who violate these standards.
+
+Report issues to the maintainers via GitHub Issues.
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the [Apache License 2.0](LICENSE).

LICENSE

@@ -0,0 +1,191 @@
+
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+   Copyright 2025 OpenPlanter Contributors
+
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+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

Makefile

@@ -0,0 +1,31 @@
+.PHONY: help lint format type test clean install
+
+help:
+	@echo "OpenPlanter development targets:"
+	@echo "  make install        Install dev dependencies"
+	@echo "  make lint           Run ruff linter"
+	@echo "  make format         Format code with ruff"
+	@echo "  make type           Run mypy type checker"
+	@echo "  make test           Run pytest"
+	@echo "  make clean          Remove build artifacts"
+
+install:
+	pip install -e ".[dev]"
+
+lint:
+	ruff check agent/ tests/
+
+format:
+	ruff format agent/ tests/
+
+type:
+	mypy agent/
+
+test:
+	pytest tests/ --ignore=tests/test_live_models.py --ignore=tests/test_integration_live.py
+
+clean:
+	find . -type d -name __pycache__ -exec rm -rf {} + 2>/dev/null || true
+	find . -type d -name .pytest_cache -exec rm -rf {} + 2>/dev/null || true
+	find . -type d -name .mypy_cache -exec rm -rf {} + 2>/dev/null || true
+	find . -type d -name *.egg-info -exec rm -rf {} + 2>/dev/null || true

README.md

@@ -155,18 +155,19 @@ tests/           Unit and integration tests
 ## Development
 
 ```bash
-# Install in editable mode
-pip install -e .
+# Install in editable mode with dev dependencies
+pip install -e ".[dev]"
 
-# Run tests
-python -m pytest tests/
+# Run tests (excludes live API tests)
+pytest tests/ --ignore=tests/test_live_models.py --ignore=tests/test_integration_live.py
 
-# Skip live API tests
-python -m pytest tests/ --ignore=tests/test_live_models.py --ignore=tests/test_integration_live.py
+# Lint and type check
+ruff check agent/ tests/
+mypy agent/
 ```
 
-Requires Python 3.10+. Dependencies: `rich`, `prompt_toolkit`, `pyfiglet`.
+Requires Python 3.10+. See [CONTRIBUTING.md](CONTRIBUTING.md) for the full development guide.
 
 ## License
 
-See [VISION.md](VISION.md) for the project's design philosophy and roadmap.
+Licensed under [Apache License 2.0](LICENSE). See [VISION.md](VISION.md) for the project's design philosophy and roadmap.