ed4a561704
- Add complete API documentation for application integration (docs/API_DOCUMENT.md) - Fix check-update API to use version ID comparison instead of string comparison - Add validation: client version must exist in server version list - Add support for patch/incremental updates with base_version check - Add C++ SDK with HTTP client, JSON parser, and crypto support - Add simple_test.cpp for standalone testing on Windows Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>