fix(build): map missing *_shared deps to *_static in static-only builds

[xylaaaaa]

Summary

• map *_shared dependency names to *_static when the shared target is unavailable in static-only builds
• preserve add_dependencies edges for object libraries in static-only mode

Why

In static-only mode, some dependency names are still declared as *_shared. If the shared target does not exist, dependency edges can be dropped, causing build-order issues.

Verification

• standalone static-only build passed:
  -DPAIMON_BUILD_SHARED=OFF
  -DPAIMON_BUILD_STATIC=ON
  -DPAIMON_BUILD_TESTS=OFF
  -DPAIMON_ENABLE_ORC=ON
  (build finished successfully)

[Copilot]

Pull request overview

Updates the CMake helper used to define Paimon libraries so that dependency edges are preserved in static-only builds, even when dependencies are still referenced by their *_shared target names.

Changes:

• Map missing *_shared dependency target names to *_static when the shared target doesn’t exist.
• Keep add_dependencies() edges for the object library (${LIB_NAME}_objlib) by filtering/mapping dependencies to existing targets.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[lucasfang]

+1