v0.3.5 - Canonical Public Release: Official Vultisig Integration, Tooling, and Docs

This release marks the first fully public and production-ready launch of vultitool with official Vultisig integration and robust developer tooling.

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Highlights

• Canonical Vultisig Integration
  Now sources protobuf and cryptographic dependencies directly from the official Vultisig ecosystem for 100% compatibility.

• Enhanced Developer Tooling
  New verification and health-check commands, unified Python and Go components, and a robust, user-friendly CLI.

• Version Management
  Automated VERSION file aligns CLI versioning with Git tags for reliable tracking and reproducible builds.

• Build & Dependency Improvements
  Makefile refactored for easy setup, building, and cross-platform use; Go modules and Python dependencies fully updated.

• Comprehensive Documentation
  All documentation (README.md, CHANGELOG.md, spec.md) updated for developer onboarding, integration, and advanced usage.

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🛠️ Technical Improvements

• Added verify.go for advanced vault validation
• Expanded doctor.py diagnostics and CLI doctor commands
• Improved .gitignore to exclude build artifacts and binaries
• Refactored Makefile with enhanced build/test targets
• Updated Go modules (go.mod, go.sum) for official commondata
• Enhanced vultitool.py for smoother Python CLI experience

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📝 Docs & Changelog

• Full CHANGELOG.md with all notable changes
• Detailed README.md with new setup instructions and usage examples
• Updated spec.md outlining project goals and roadmap

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This release is the official "hello world" for vultitool—ready for real-world use, developer onboarding, and production integration.