What

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

• Current version: 0.1.0
• Test coverage: Good (RAII 20/20)
• API stability: Medium

Part of kcenon/common_system#639

Why

• Provides container/RAII primitives used by higher-tier libraries
• RAII tests are comprehensive (20/20) indicating API maturity
• Must release alongside thread_system as Tier 1

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 container_system::container_system
• Test coverage: Verify 70%+ unit test coverage
• Deprecation cleanup: Remove any deprecated APIs
• 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(container_system) works cleanly
• Full test suite passes
• README documents v1.0 API guarantees