feat: integrate Tier 6 distributed monad into build and add tests

CMakeLists.txt

@@ -210,6 +210,7 @@ add_library(t81_experimental STATIC
   experimental/tiers/cog/tier4/tier4_loop.cpp
   experimental/distributed/distributed.cpp
   experimental/tiers/cog/tier5/infinite.cpp
+  experimental/tiers/cog/tier6/distributed_monad.cpp
 )
 target_link_libraries(t81_experimental PUBLIC t81_core)
 target_compile_features(t81_experimental PUBLIC ${T81_CXX_STD_FEATURE})
@@ -2380,6 +2381,9 @@ add_test(NAME t81lang_surface_gate_test COMMAND t81lang_surface_gate_test)
   target_link_libraries(t81_ethics_test PRIVATE t81_core t81_axion)
   add_test(NAME t81_ethics_test COMMAND t81_ethics_test)
 
+  add_executable(t81_tier6_test tests/cpp/tier6_test.cpp)
+  target_link_libraries(t81_tier6_test PRIVATE t81_core t81_experimental t81_tracing)
+
   add_executable(t81_ethics_invariants_test tests/cpp/test_ethics_invariants.cpp)
   target_link_libraries(t81_ethics_invariants_test PRIVATE t81_core t81_axion)
   add_test(NAME t81_ethics_invariants_test COMMAND t81_ethics_invariants_test)
@@ -3301,6 +3305,7 @@ target_link_libraries(axion_policy_segment_event_test PRIVATE t81_isa t81_vm)
     canonfs_axion_trace_test
     t81_tier4_test
     t81_tier5_test
+    t81_tier6_test
     t81_infinite_opcodes_test
     t81_tier4_vm_test
     t81_tier4_distributed_test

tests/cpp/tier6_test.cpp

@@ -0,0 +1,96 @@
+#include <cassert>
+#include <iostream>
+#include <vector>
+
+#include "t81/experimental/cog/tier6/distributed_monad.hpp"
+#include "t81/tracing/canonhash.hpp"
+
+using namespace t81::cog::v6;
+
+void test_empty_mesh() {
+  MeshReflector reflector;
+  std::vector<MonadState> monads;
+
+  auto result = reflector.mesh_reflect(monads);
+  assert(result.converged);
+  assert(result.convergence_hash == "EMPTY_MESH");
+  assert(result.iterations == 0);
+  std::cout << "Empty mesh test passed.\n";
+}
+
+void test_mesh_reflection_convergence() {
+  MeshReflector reflector;
+  std::vector<MonadState> monads;
+
+  MonadState m1;
+  m1.address.node_hash = t81::hash::hash_string("hash1");
+  m1.label = "node1";
+
+  MonadState m2;
+  m2.address.node_hash = t81::hash::hash_string("hash2");
+  m2.label = "node2";
+
+  m1.peers.push_back(m2.address);
+  m2.peers.push_back(m1.address);
+
+  monads.push_back(m1);
+  monads.push_back(m2);
+
+  auto result = reflector.mesh_reflect(monads);
+  assert(!result.converged);
+  assert(result.iterations == 1);
+  assert(monads[0].label == "node1+node2");
+  assert(monads[1].label == "node2+node1");
+  assert(monads[0].reflection_depth == 1);
+  assert(monads[1].reflection_depth == 1);
+
+  auto result2 = reflector.mesh_reflect(monads);
+  assert(!result2.converged);
+  assert(result2.iterations == 1);
+  assert(monads[0].label == "node1+node2+node2+node1");
+  assert(monads[1].label == "node2+node1+node1+node2");
+
+  std::cout << "Mesh reflection test passed.\n";
+}
+
+void test_entropy_containment() {
+  MeshReflector reflector(2);  // Set max depth to 2
+  std::vector<MonadState> monads;
+
+  MonadState m1;
+  m1.address.node_hash = t81::hash::hash_string("hash1");
+  m1.label = "node1";
+
+  MonadState m2;
+  m2.address.node_hash = t81::hash::hash_string("hash2");
+  m2.label = "node2";
+
+  m1.peers.push_back(m2.address);
+  m2.peers.push_back(m1.address);
+
+  monads.push_back(m1);
+  monads.push_back(m2);
+
+  auto r1 = reflector.mesh_reflect(monads);
+  assert(!r1.converged);
+  assert(monads[0].entropy_contained);
+
+  auto r2 = reflector.mesh_reflect(monads);
+  assert(!r2.converged);
+  assert(!monads[0].entropy_contained);
+  assert(!monads[1].entropy_contained);
+
+  auto r3 = reflector.mesh_reflect(monads);
+  assert(!r3.converged);
+  assert(r3.convergence_hash == "ENTROPY_VIOLATION");
+
+  std::cout << "Entropy containment test passed.\n";
+}
+
+int main() {
+  test_empty_mesh();
+  test_mesh_reflection_convergence();
+  test_entropy_containment();
+  std::cout << "All tier 6 tests passed.\n";
+  return 0;
+}