Merge origin/main into feature/protobuf_config_and_dynamic_ui

Resolve the 4 proto-refactored conflicts (Preset.cpp, Print.cpp,
PrintConfig.cpp, Tab.cpp) by keeping the branch's generated-include
versions; auto-merged non-conflict changes from main are preserved.

Reconcile main's new settings into the proto schema. main added 52 new
active init_fff_params settings not present in the proto; ported them all
(type/label/tooltip/default/enum/preset) into print/filament/printer.proto
so the config registers, profiles load, and the GUI does not crash on
missing defs. Added GuiType.plugin_picker to config_metadata.proto and
regenerated config_metadata_pb2.py.

Codegen: run_codegen validate PASSED (712 fields). UI layout (layout.yaml
placement) for the 52 new settings is a follow-up; they are registered and
serialized but not yet placed in GUI tabs.

cmake/modules/FindOpenVDB.cmake

@@ -128,6 +128,10 @@ cmake_minimum_required(VERSION 3.13)
 if(POLICY CMP0074)
   cmake_policy(SET CMP0074 NEW)
 endif()
+# Re-set after cmake_minimum_required above cleared it; use BoostConfig, not the removed FindBoost.
+if(POLICY CMP0167)
+  cmake_policy(SET CMP0167 NEW)
+endif()
 
 if(OpenVDB_FIND_QUIETLY)
   set (_quiet "QUIET")