What

Prepare database_system for a stable v1.0 release. Tier 3 library — depends on common_system, thread_system, and logger_system v1.0.

• Current version: 0.1.0
• Test coverage: 87.5%
• API stability: Low (CMake name change pending)

Part of kcenon/common_system#639

Why

• Provides database abstraction layer for pacs_system and other consumers
• CMake package name migration is a breaking change that must be completed before v1.0
• 87.5% test coverage is well above threshold — focus is on API stabilization

How

v1.0 Readiness Checklist

• CMake package name migration: Complete the pending name change to consistent database_system::database_system target
• API freeze audit: Review all public headers — no breaking changes after freeze
• Result<T> migration: Verify zero throw in public APIs
• CMake exports: Stable, consistent target names after migration
• Test coverage: Maintain 70%+ (currently 87.5%)
• Deprecation cleanup: Remove any deprecated APIs
• Documentation: Complete API reference and migration guide from 0.x
• CHANGELOG: Ensure keep-a-changelog format, document CMake name change
• Semantic versioning: Tag v1.0.0 release

Dependencies

• Blocked by: common_system v1.0 (Prepare common_system for v1.0 release common_system#640)
• Blocked by: thread_system v1.0 (Prepare thread_system for v1.0 release thread_system#670)
• Blocked by: logger_system v1.0 (Prepare logger_system for v1.0 release logger_system#604)

Acceptance Criteria

• CMake package name migration completed
• All public API headers reviewed and frozen
• No throw statements in public API paths
• CMake find_package(database_system) works cleanly with new name
• Full test suite passes (87.5%+ coverage)
• README documents v1.0 API guarantees and CMake migration