Baf 1717/cmake migration

[martinburian-ba]

Summary

Migrates transparent-module (v1.0.5) off cmlib onto plain CMake +
FetchContent, following the same pattern established in external-server-cpp
(BAF-1706).

• Replaces FIND_PACKAGE(CMLIB ...) / CMDEF_ADD_LIBRARY / CMDEF_INSTALL
  usage with a cmake/FindCMLIB.cmake compatibility shim, so the rest of
  CMakeLists.txt is unchanged.
• Adds FindBA*.cmake modules that resolve each dependency via a system/
  config package first, falling back to FetchContent (nlohmann_json,
  fleet-protocol-interface, fleet-protocol-cxx-helpers-static,
  async-function-execution-shared, aeron, fleet-http-client-shared, Boost,
  ZLIB, cpprestsdk).

Fixes on top of the original migration commit

Found while verifying the migration builds:

1. Configure failed immediately — the migration dropped
   FIND_PACKAGE(CMLIB COMPONENTS CMDEF CMUTIL STORAGE REQUIRED) from
   CMakeLists.txt, so cmake/FindCMLIB.cmake (which defines
   CMDEF_ADD_LIBRARY/CMDEF_INSTALL) was never loaded. Restored the call.
2. Wrong package version — the CMDEF_PACKAGE shim was a no-op and
   silently dropped its VERSION argument, so cpack always produced
   0.1.1 instead of the real module version. Shim now sets
   CPACK_PACKAGE_VERSION from the passed version.

Verification

• Native x86_64 build (module-gateway variant,
  -DFLEET_PROTOCOL_BUILD_EXTERNAL_SERVER=OFF): configure, build, and
  cpack all pass — transparent_module-1.0.5-Linux.zip.
• Native x86_64 package build (both variants,
  -DBRINGAUTO_PACKAGE=ON, matching what the real deploy pipeline runs):
  passes.
• Ran the real fleet-os-deploy pipeline end to end against a temp tag on
  this branch (temp/baf-1717-deploy-verify) — steps 1-7 and the aarch64
  dependency-sysroot assembly all pass. The run is currently blocked only
  by the fleet-os-3 cross-compile Docker image not being available in any
  reachable registry — an infra gap unrelated to this change (it fails
  before even reaching this module, on module-gateway).

Note: this module was previously missing from fleet-os-deploy's
deployment.json entirely — added an entry for it (module-num 3) as part of
today's verification so it could be exercised through the pipeline at all.

Closes BAF-1717.

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Review details

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Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1696715c-c9b9-4301-a51e-407736711233

📥 Commits

Reviewing files that changed from the base of the PR and between 9f224e3 and 17c490a.

📒 Files selected for processing (18)

• CMLibStorage.cmake
• CMakeLists.txt
• cmake/Dependencies.cmake
• cmake/FindBAAeron.cmake
• cmake/FindBAAsyncFunctionExecution.cmake
• cmake/FindBABoost.cmake
• cmake/FindBACppRestSdk.cmake
• cmake/FindBAFleetHttpClient.cmake
• cmake/FindBAFleetProtocolCpp.cmake
• cmake/FindBAFleetProtocolInterface.cmake
• cmake/FindBANlohmannJson.cmake
• cmake/FindBAProtobuf.cmake
• cmake/FindBAZlib.cmake
• cmake/FindCMLIB.cmake
• cmake/Findasync-function-execution-shared.cmake
• cmake/Findfleet-http-client-shared.cmake
• cmake/Findfleet-protocol-cxx-helpers-static.cmake
• cmake/Findfleet-protocol-interface.cmake

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch BAF-1717/cmake-migration

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