What

Result<T> migration is documented as 75-80% complete. Finish the remaining public API paths so the library has a single, consistent error-handling style.

• Current: Mixed exception + Result in public API
• Expected: 100% Result in public API; exceptions only at internal boundaries with adapters
• Scope: include/kcenon/network/**, src/**

Why

• Mixed error styles force consumers to handle both exceptions and Result
• Ecosystem convention (common_system, logger_system) is Result for public APIs
• Blocks v1.0 API freeze

How

Technical Approach

1. Inventory remaining throw statements in public headers
2. Convert each to Result or document as internal-only with a throwing-to-Result adapter
3. Update examples and docs
4. Add a static check (grep or clang-tidy) that fails if a public header contains throw

Acceptance Criteria

• No throw in public headers
• All examples use Result
• Static check enforced in CI
• CHANGELOG entry describing the breaking change