authvault 0.1.0

Authentication and authorization vault with multi-provider support
Documentation
# Pull Request Description

## Summary
<!-- What does this PR do? -->

## Type of Change
- [ ] Bug fix
- [ ] New feature
- [ ] Breaking change
- [ ] Documentation update

## Testing
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## Checklist
- [ ] Code follows project style guidelines
- [ ] Self-review completed
- [ ] Tests added/updated
- [ ] Documentation updated