refactor(cli): migrate runtime and simulator parsers to CLI11

Replace hand-rolled argument parsing with CLI11-backed parse paths for streamer runtime config and simulator runtime options.

Simulator help text is now generated from CLI11 app definitions to keep parser/help output in sync, while preserving legacy validation messages and exit semantics used by automation.

CMakeLists.txt

@@ -8,6 +8,10 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 find_package(Threads REQUIRED)
 
+if (EXISTS "${CMAKE_CURRENT_LIST_DIR}/lib/CLI11/CMakeLists.txt")
+	add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/lib/CLI11" "${CMAKE_CURRENT_BINARY_DIR}/vendor/cli11")
+endif()
+
 find_package(cppzmq QUIET)
 find_package(ZeroMQ QUIET)
 find_package(spdlog REQUIRED)
@@ -76,6 +80,10 @@ elseif (TARGET spdlog)
 	list(APPEND CVMAP_STREAMER_LINK_DEPS spdlog)
 endif()
 
+if (TARGET CLI11::CLI11)
+	list(APPEND CVMAP_STREAMER_LINK_DEPS CLI11::CLI11)
+endif()
+
 target_link_libraries(cvmmap_streamer_common PUBLIC ${CVMAP_STREAMER_LINK_DEPS})
 
 function(add_cvmmap_binary target source)