chore: update build configuration for async integration demos

- Add Boost dependency for asio integration demos
- Add build targets for new async example programs
- Ensure correct dependencies and groupings for all examples

Author: WenyinWei

xmake.lua

@@ -20,6 +20,7 @@ end
 -- Dependencies
 add_requires("eigen 3.4.0")
 add_requires("gtest", {optional = true})
+add_requires("boost", {optional = true})
 
 -- Global include directories
 add_includedirs("include")
@@ -120,6 +121,32 @@ target("parallelism_usage_demo")
     set_rundir("$(projectdir)")
     set_group("examples")
 
+-- Asio integration demo
+target("asio_integration_demo")
+    set_kind("binary")
+    add_files("examples/asio_integration_demo.cpp")
+    add_deps("diffeq")
+    add_packages("boost")
+    set_rundir("$(projectdir)")
+    set_group("examples")
+
+-- Advanced asio integration demo
+target("advanced_asio_integration")
+    set_kind("binary")
+    add_files("examples/advanced_asio_integration.cpp")
+    add_deps("diffeq")
+    add_packages("boost")
+    set_rundir("$(projectdir)")
+    set_group("examples")
+
+-- Standard library async integration demo
+target("std_async_integration_demo")
+    set_kind("binary")
+    add_files("examples/std_async_integration_demo.cpp")
+    add_deps("diffeq")
+    set_rundir("$(projectdir)")
+    set_group("examples")
+
 -- SDE usage demo (temporarily disabled due to API issues)
 -- target("sde_usage_demo")
 --     set_kind("binary")
@@ -261,7 +288,10 @@ task("examples-all")
             "state_concept_usage",
             "rk4_integrator_usage",
             "advanced_integrators_usage",
-            "parallelism_usage_demo"
+            "parallelism_usage_demo",
+            "asio_integration_demo",
+            "advanced_asio_integration",
+            "std_async_integration_demo"
         }
 
         local long_examples = {