Enhance repo and code organization

.dockerignore

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+# Git files
+.git
+.gitignore
+.github
+
+# Python cache
+__pycache__
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+dist/
+*.egg-info/
+.eggs/
+
+# Virtual environments
+venv/
+env/
+ENV/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+
+# Data files
+tasks.json
+*.json
+!pyproject.toml
+
+# Documentation build
+docs/_build/
+
+# OS files
+.DS_Store
+Thumbs.db

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Create a report to help us improve
+title: '[BUG] '
+labels: bug
+assignees: ''
+---
+
+## Bug Description
+
+A clear and concise description of what the bug is.
+
+## Steps To Reproduce
+
+1. Run command '...'
+2. With arguments '...'
+3. See error
+
+## Expected Behavior
+
+A clear and concise description of what you expected to happen.
+
+## Actual Behavior
+
+A clear and concise description of what actually happened.
+
+## Error Messages
+
+```
+Paste any error messages here
+```
+
+## Environment
+
+- OS: [e.g., Ubuntu 22.04, macOS 13.0, Windows 11]
+- Python Version: [e.g., 3.11.0]
+- Todo CLI Version: [e.g., 1.0.0]
+- Installation Method: [e.g., pip install, direct clone]
+
+## Task Data (if relevant)
+
+```json
+{
+  "example": "Paste your tasks.json if relevant to the issue"
+}
+```
+
+## Additional Context
+
+Add any other context about the problem here, such as:
+- Screenshots (if applicable)
+- Related issues
+- Possible solutions you've considered

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true
+contact_links:
+  - name: Question or Discussion
+    url: https://github.com/codeforgood-org/todo-list-cli/discussions
+    about: Ask questions or discuss ideas with the community
+  - name: Documentation
+    url: https://github.com/codeforgood-org/todo-list-cli#readme
+    about: Check the README for usage instructions and examples

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature Request
+about: Suggest an idea for this project
+title: '[FEATURE] '
+labels: enhancement
+assignees: ''
+---
+
+## Feature Description
+
+A clear and concise description of the feature you'd like to see.
+
+## Problem It Solves
+
+Describe the problem or limitation this feature would address.
+Example: "I'm always frustrated when..."
+
+## Proposed Solution
+
+A clear and concise description of what you want to happen.
+
+### Command Example
+
+```bash
+# Example of how the new feature might work
+todo <new-command> [options]
+```
+
+### Expected Output
+
+```
+Example output or behavior
+```
+
+## Alternatives Considered
+
+Describe any alternative solutions or features you've considered.
+
+## Additional Context
+
+Add any other context, screenshots, mockups, or examples about the feature request here.
+
+## Use Cases
+
+Describe specific use cases for this feature:
+1. Use case 1
+2. Use case 2
+3. Use case 3
+
+## Priority
+
+How important is this feature to you?
+- [ ] Nice to have
+- [ ] Important
+- [ ] Critical
+
+## Willingness to Contribute
+
+Would you be willing to contribute to implementing this feature?
+- [ ] Yes, I can submit a PR
+- [ ] Yes, I can help with testing
+- [ ] No, but I can provide feedback
+- [ ] No

.github/pull_request_template.md

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+# Description
+
+Please include a summary of the changes and which issue is fixed. Include relevant motivation and context.
+
+Fixes # (issue)
+
+## Type of Change
+
+Please delete options that are not relevant.
+
+- [ ] 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 coverage improvement
+
+## Changes Made
+
+List the specific changes made in this PR:
+
+- Change 1
+- Change 2
+- Change 3
+
+## Testing
+
+Please describe the tests that you ran to verify your changes.
+
+### Test Configuration
+
+- Python Version:
+- OS:
+- Related test files:
+
+### Test Commands Run
+
+```bash
+# Example
+pytest tests/
+python todo.py list
+```
+
+## Checklist
+
+Please check all that apply:
+
+- [ ] My code follows the style guidelines of this project (Black, Flake8)
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] 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
+
+## Screenshots (if applicable)
+
+If your changes include UI/output changes, please include before/after screenshots.
+
+### Before
+
+```
+Output before changes
+```
+
+### After
+
+```
+Output after changes
+```
+
+## Additional Notes
+
+Add any additional notes, concerns, or questions here.
+
+## Breaking Changes
+
+If this PR introduces breaking changes, please describe:
+
+1. What breaks
+2. How to migrate
+3. Why the breaking change is necessary
+
+## Performance Impact
+
+If applicable, describe any performance implications:
+
+- Does this change impact performance?
+- Have you run benchmarks?
+- What are the results?
+
+## Documentation
+
+- [ ] README.md updated (if needed)
+- [ ] CHANGELOG.md updated
+- [ ] Examples updated (if needed)
+- [ ] Docstrings added/updated
+- [ ] CONTRIBUTING.md updated (if needed)

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e ".[dev]"
+
+    - name: Run tests
+      run: |
+        pytest tests/ -v --cov=todolist --cov-report=xml --cov-report=term
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v4
+      if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.11'
+      with:
+        file: ./coverage.xml
+        flags: unittests
+        name: codecov-umbrella
+
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.11'
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install black flake8 mypy
+
+    - name: Check code formatting with Black
+      run: |
+        black --check src/
+
+    - name: Lint with flake8
+      run: |
+        flake8 src/ --count --select=E9,F63,F7,F82 --show-source --statistics
+        flake8 src/ --count --exit-zero --max-complexity=10 --max-line-length=88 --statistics
+
+    - name: Type check with mypy
+      run: |
+        mypy src/todolist/ --ignore-missing-imports
+      continue-on-error: true

.gitignore

@@ -172,3 +172,10 @@ cython_debug/
 
 # PyPI configuration file
 .pypirc
+
+# Project-specific files
+tasks.json
+tasks_export.*
+example_tasks.json
+*.json
+!pyproject.toml