What

Prepare thread_system for a stable v1.0 release. Tier 1 library — depends on common_system v1.0.

• Current version: 0.3.1
• Test coverage: 72%
• API stability: Medium (queue consolidation done)

Part of kcenon/common_system#639

Why

• Provides threading primitives used by higher-tier libraries (logger, monitoring, network, pacs)
• Queue consolidation is complete — API is relatively stable
• Must release after common_system v1.0 but before Tier 2+ libraries

How

v1.0 Readiness Checklist

• API freeze audit: Review all public headers — no breaking changes after freeze
• Result<T> migration: Verify zero throw in public APIs
• CMake exports: Stable target name thread_system::thread_system
• Test coverage: Maintain 70%+ (currently 72%)
• Deprecation cleanup: Remove any deprecated APIs from queue consolidation
• Documentation: Complete API reference and migration guide from 0.x
• CHANGELOG: Ensure keep-a-changelog format
• Semantic versioning: Tag v1.0.0 release

Dependencies

• Blocked by: common_system v1.0 (Prepare common_system for v1.0 release common_system#640)

Acceptance Criteria

• All public API headers reviewed and frozen
• No throw statements in public API paths
• CMake find_package(thread_system) works cleanly
• Full test suite passes (72%+ coverage maintained)
• README documents v1.0 API guarantees
• CHANGELOG covers 0.x → 1.0 migration