Modernize project structure for better OSS contribution experience

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Source code
+*.cc text
+*.h text
+*.py text
+*.md text
+*.txt text
+*.toml text
+*.yml text
+*.yaml text
+*.json text
+*.cmake text
+*.in text
+
+# Scripts
+*.sh text eol=lf
+*.bash text eol=lf
+
+# Documentation
+*.rst text
+*.ipynb text
+
+# Binary files
+*.so binary
+*.pyd binary
+*.dylib binary
+*.dll binary
+*.a binary
+*.o binary
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.pdf binary
+
+# Git
+.gitattributes export-ignore
+.gitignore export-ignore
+.github export-ignore
+
+# Language statistics for GitHub
+*.h linguist-language=C++
+*.cc linguist-language=C++
+include/prtree/** linguist-language=C++
+src/cpp/** linguist-language=C++
+benchmarks/cpp/** linguist-language=C++

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug Report
+description: Report a bug or unexpected behavior
+title: "[Bug]: "
+labels: ["bug", "needs-triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug! Please fill out the information below.
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Bug Description
+      description: A clear and concise description of what the bug is.
+      placeholder: Describe the bug...
+    validations:
+      required: true
+
+  - type: textarea
+    id: reproduce
+    attributes:
+      label: Steps to Reproduce
+      description: Steps to reproduce the behavior
+      placeholder: |
+        1. Create a tree with...
+        2. Call query with...
+        3. See error...
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected Behavior
+      description: What did you expect to happen?
+      placeholder: Expected to return...
+    validations:
+      required: true
+
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual Behavior
+      description: What actually happened? Include any error messages.
+      placeholder: |
+        Error message:
+        ```
+        paste error here
+        ```
+    validations:
+      required: true
+
+  - type: textarea
+    id: code
+    attributes:
+      label: Minimal Reproducible Example
+      description: Please provide a minimal code example that reproduces the issue
+      placeholder: |
+        ```python
+        from python_prtree import PRTree2D
+        # your code here
+        ```
+      render: python
+    validations:
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: python_prtree Version
+      description: What version are you using?
+      placeholder: "0.7.0"
+    validations:
+      required: true
+
+  - type: input
+    id: python-version
+    attributes:
+      label: Python Version
+      description: What Python version are you using?
+      placeholder: "3.11"
+    validations:
+      required: true
+
+  - type: dropdown
+    id: os
+    attributes:
+      label: Operating System
+      options:
+        - Linux
+        - macOS
+        - Windows
+        - Other
+    validations:
+      required: true
+
+  - type: textarea
+    id: additional
+    attributes:
+      label: Additional Context
+      description: Add any other context about the problem here
+      placeholder: Any additional information...

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Feature Request
+description: Suggest a new feature or enhancement
+title: "[Feature]: "
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for suggesting a feature! Please fill out the information below.
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem Statement
+      description: Is your feature request related to a problem? Please describe.
+      placeholder: I'm always frustrated when...
+    validations:
+      required: true
+
+  - type: textarea
+    id: solution
+    attributes:
+      label: Proposed Solution
+      description: Describe the solution you'd like
+      placeholder: I would like to be able to...
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives Considered
+      description: Describe alternatives you've considered
+      placeholder: I've considered...
+
+  - type: textarea
+    id: example
+    attributes:
+      label: Example Usage
+      description: How would you use this feature?
+      placeholder: |
+        ```python
+        # Example code showing desired API
+        tree.new_feature(...)
+        ```
+      render: python
+
+  - type: checkboxes
+    id: contribution
+    attributes:
+      label: Contribution
+      description: Would you be willing to contribute this feature?
+      options:
+        - label: I'm willing to submit a PR for this feature

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+
+<!-- Please include a summary of the changes and the related issue. -->
+
+Fixes #(issue)
+
+## Type of Change
+
+<!-- Please check the one that applies to this PR -->
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+- [ ] Code refactoring
+- [ ] Performance improvement
+- [ ] Test addition or modification
+
+## Changes Made
+
+<!-- List the main changes in this PR -->
+
+-
+-
+-
+
+## Testing
+
+<!-- Describe the tests that you ran to verify your changes -->
+
+- [ ] All existing tests pass (`make test` or `pytest`)
+- [ ] Added new tests for new functionality
+- [ ] Tested on multiple Python versions (if applicable)
+- [ ] Tested on multiple platforms (if applicable)
+
+### Test Commands Run
+
+```bash
+# List the test commands you ran
+make test
+pytest tests/unit/test_*.py -v
+```
+
+## Documentation
+
+- [ ] Updated docstrings for modified functions/classes
+- [ ] Updated README.md (if needed)
+- [ ] Updated CHANGES.md
+- [ ] Updated type hints (if applicable)
+
+## Checklist
+
+- [ ] My code follows the project's code style (`make format` and `make lint` pass)
+- [ ] I have performed a self-review of my code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] New and existing unit tests pass locally with my changes
+- [ ] Any dependent changes have been merged and published
+
+## Performance Impact
+
+<!-- If applicable, describe any performance implications -->
+
+- [ ] No performance impact
+- [ ] Performance improvement (describe below)
+- [ ] Potential performance regression (describe below and justify)
+
+## Breaking Changes
+
+<!-- If this is a breaking change, describe the impact and migration path -->
+
+N/A
+
+## Additional Notes
+
+<!-- Any additional information that reviewers should know -->

.github/workflows/cibuildwheel.yml

@@ -45,12 +45,11 @@ jobs:
           python-version: ${{ matrix.python }}
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip wheel setuptools
-          python -m pip install numpy pytest
+          python -m pip install --upgrade pip build
       - name: Build and install
-        run: python -m pip install -e .
+        run: python -m pip install -e ".[dev]"
       - name: Run tests
-        run: pytest tests -vv
+        run: python -m pytest tests -vv
 
   build_wheels:
     # Skip wheel builds on PRs - only build on main branch and tags