Update dynamic_graph_todo.md: Phase 6.1 complete

Author: pratzl

agents/dynamic_graph_todo.md

@@ -30,12 +30,24 @@
 - ✅ Phase 5.2-5.4: Combined test file with string edge cases, double IDs, custom types
 - **Test file:** test_dynamic_graph_nonintegral_ids.cpp (19 test cases, 133 assertions)
 
+**Phase 6: Integration Tests - IN PROGRESS ⏳ (20% complete)**
+- ✅ Phase 6.1: Cross-Traits Graph Construction COMPLETE (26 test cases, 144 assertions)
+  - Sequential ↔ Sequential copying (vov, vofl, dol, dofl, dov)
+  - Sequential ↔ Map conversions with ID type changes (uint64_t ↔ std::string)
+  - Map ↔ Map copying (mos ↔ mous)
+  - Edge value preservation (void and int edges)
+  - Bug fixes: forward_list emplace_edge, empty edge range handling
+- ⏳ Phase 6.2: Algorithm Integration PENDING
+- ⏳ Phase 6.3: View Integration PENDING
+- ⏳ Phase 6.4: Mixed Operations PENDING
+- ⏳ Phase 6.5: Real-World Patterns PENDING
+
 **Remaining Work:**
 - ⏳ Phase 4.1.5: uos_graph_traits (unordered_map + set) - trait file + 2 test files
-- Phase 6: Integration tests (optional)
+- Phase 6.2-6.5: Additional integration tests (optional)
 - Phase 7: Mutation and stress tests (optional)
 
-**Test Files Created (51 files total, 49 complete):**
+**Test Files Created (52 files total, 50 complete):**
 
 *Sequential Containers (16 files):*
 - test_dynamic_graph_vofl.cpp + test_dynamic_graph_cpo_vofl.cpp ✅
@@ -76,6 +88,8 @@
 *Additional Test Files:*
 - test_dynamic_graph_common.cpp ✅
 - test_dynamic_edge_comparison.cpp ✅
+- test_dynamic_graph_nonintegral_ids.cpp ✅
+- test_dynamic_graph_integration.cpp ✅
 
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