feat: add candidate FreeCAD naming SDK and attachment oracles

Build and verify the candidate-only FreeCAD naming bridge and OCCT worker path, including three-stage StringHasher restoration. Add Datum, ShapeBinder, attachment-mode, and PartDesign structure oracles plus offline SDK build plans and CI boundary checks.

config/cmake/boost/BoostConfig.cmake

@@ -0,0 +1,33 @@
+set(Boost_VERSION 108300)
+set(Boost_VERSION_STRING "1.83.0")
+set(Boost_INCLUDE_DIRS "${BOOST_WASM_ROOT}/include")
+set(Boost_INCLUDE_DIR "${Boost_INCLUDE_DIRS}")
+set(Boost_LIBRARIES "")
+
+foreach(component IN LISTS Boost_FIND_COMPONENTS)
+  string(TOLOWER "${component}" component_lower)
+  set(archive "${BOOST_WASM_ROOT}/lib/libboost_${component_lower}.a")
+  if(NOT EXISTS "${archive}")
+    set(Boost_${component}_FOUND FALSE)
+    set(Boost_FOUND FALSE)
+    if(Boost_FIND_REQUIRED_${component})
+      message(FATAL_ERROR "Missing Boost wasm component ${component}: ${archive}")
+    endif()
+    continue()
+  endif()
+  if(NOT TARGET Boost::${component})
+    add_library(Boost::${component} STATIC IMPORTED)
+    set_target_properties(Boost::${component} PROPERTIES
+      IMPORTED_LOCATION "${archive}"
+      INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}"
+    )
+    if(component_lower STREQUAL "thread")
+      set_property(TARGET Boost::${component} APPEND PROPERTY INTERFACE_LINK_LIBRARIES
+        "${BOOST_WASM_ROOT}/lib/libboost_atomic.a")
+    endif()
+  endif()
+  set(Boost_${component}_FOUND TRUE)
+  list(APPEND Boost_LIBRARIES Boost::${component})
+endforeach()
+
+set(Boost_FOUND TRUE)

config/cmake/boost/BoostConfigVersion.cmake

@@ -0,0 +1,9 @@
+set(PACKAGE_VERSION "1.83.0")
+if(PACKAGE_FIND_VERSION VERSION_GREATER PACKAGE_VERSION)
+  set(PACKAGE_VERSION_COMPATIBLE FALSE)
+else()
+  set(PACKAGE_VERSION_COMPATIBLE TRUE)
+  if(PACKAGE_FIND_VERSION VERSION_EQUAL PACKAGE_VERSION)
+    set(PACKAGE_VERSION_EXACT TRUE)
+  endif()
+endif()

config/cmake/fmt/fmt-config.cmake

@@ -0,0 +1,17 @@
+if(NOT FREECAD_WASM_OFFLINE_SYSROOT)
+    message(FATAL_ERROR "FREECAD_WASM_OFFLINE_SYSROOT is required by the candidate fmt package")
+endif()
+set(_freecad_wasm_fmt_include "${FREECAD_WASM_OFFLINE_SYSROOT}/fmt-10.1.1/include")
+if(NOT EXISTS "${_freecad_wasm_fmt_include}/fmt/format.h")
+    message(FATAL_ERROR "Offline fmt headers are missing: ${_freecad_wasm_fmt_include}/fmt/format.h")
+endif()
+if(NOT TARGET fmt)
+    add_library(fmt INTERFACE)
+    target_include_directories(fmt INTERFACE "${_freecad_wasm_fmt_include}")
+    target_compile_definitions(fmt INTERFACE FMT_HEADER_ONLY=1)
+endif()
+if(NOT TARGET fmt::fmt)
+    add_library(fmt::fmt ALIAS fmt)
+endif()
+set(fmt_FOUND TRUE)
+set(fmt_VERSION 10.1.1)