Note

Moves updater from GitHub to check-version.orcaslicer.com with signed, parameterized requests; adds persistent instance ID and wires build-time signature key across CI/build/CMake.

• Updater:
  • Replace GitHub release polling with https://check-version.orcaslicer.com/latest via AppConfig::version_check_url().
  • Add query params (iid, v, os, arch, os_info) and optional HMAC-SHA256 signature headers (X-Orca-Ts, X-Orca-Sig).
  • Implement persistent instance ID (Utils/InstanceID.*) and generated config for build-time key (GeneratedConfig.hpp).
  • Refactor version parsing/selection in GUI_App::check_new_version_sf() and improve OS/arch detection.
• Build/CI/CMake:
  • Pass ORCA_UPDATER_SIG_KEY from GitHub Actions to platform build scripts; plumb to CMake (-DORCA_UPDATER_SIG_KEY).
  • Generate GeneratedConfig.hpp; include in targets and add new sources; trim/normalize key.
  • Link updates: Windows Advapi32, macOS Security framework, Linux libsecret; add PkgConfig usage.
• API Changes:
  • AppConfig::version_check_url() now single-source (no stable_only param) and uses new service URL.
• Docs:
  • Add AGENTS.md with repository guidelines.

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