What

Add vcpkg-configuration.json and version overrides to messaging_system, aligning it with the ecosystem-standard configuration used by the 8 core kcenon projects.

Current State

Ecosystem Standard Baselines

Why

• messaging_system has no baseline at all — vcpkg resolves packages from whatever version happens to be installed locally, making builds non-reproducible across machines
• Without the custom registry, kcenon-* ecosystem packages cannot be consumed as vcpkg dependencies
• No overrides means shared packages (asio, fmt, nlohmann-json, spdlog) may resolve to different versions than the core ecosystem
• Issue Standardize vcpkg.json following ecosystem conventions #201 previously standardized vcpkg.json structure but did not add vcpkg-configuration.json

Dependency Overlap

Where

How

Technical Approach

1. Create vcpkg-configuration.json:

{
  "default-registry": {
    "kind": "builtin",
    "baseline": "d90a9b159c08169f39adcd1b0f1ac0ca12c4b96c"
  },
  "registries": [
    {
      "kind": "git",
      "repository": "https://github.com/kcenon/vcpkg-registry.git",
      "baseline": "77cc46d5ba5e2aef1581f2ec674f83e1ac906b43",
      "packages": ["kcenon-*"]
    }
  ]
}

2. Add overrides to vcpkg.json:

"overrides": [
  { "name": "gtest", "version": "1.17.0" },
  { "name": "benchmark", "version": "1.9.5" },
  { "name": "spdlog", "version": "1.15.3" },
  { "name": "asio", "version": "1.30.2" }
]

3. Verify vcpkg install resolves correctly with the new configuration
4. Update CI workflow to use vcpkg-configuration.json if not already implicit

Acceptance Criteria

• vcpkg-configuration.json created with ecosystem-standard baselines
• Overrides added for shared packages (gtest, benchmark, spdlog, asio)
• vcpkg install succeeds with new configuration
• CI build passes on all platforms (Ubuntu, macOS, Windows)
• kcenon-* packages resolvable via custom registry

Related

• Part of chore(vcpkg): standardize vcpkg configuration across satellite projects common_system#509
• Follows up on Standardize vcpkg.json following ecosystem conventions #201 (vcpkg.json standardization)