Merged PR 2408: updated context for current state at 19062026

updated context for current state at 19062026

Related work items: #23754

memory-bank/change-log.md

@@ -18,6 +18,43 @@ Follow-ups:
 
 ---
 
+### CL-2026-06-19-ARCHITECTURE-PROGRAMME-MILESTONE: discovery close-out and transition to adoption planning
+
+date: 2026-06-19  
+author: Architecture Review  
+scope: architecture programme  
+type: milestone  
+rationale: Record the conclusion of the architectural discovery programme and the transition into the next architecture phase.  
+impact: Documentation/context only; improves programme clarity, handoff readiness, and next-stream prioritisation; no runtime or implementation behaviour change.  
+status: completed
+
+Summary:
+
+Architectural discovery programme concluded.
+
+Final classifications established:
+
+- Business Decision Models
+- Presentation Models
+- CRM Compatibility Models
+- Workflow / Integration Models
+
+Recommendation:
+
+Transition architecture effort from discovery to adoption planning and API security assessment.
+
+Validation:
+
+- Documentation-only update.
+- No implementation files changed.
+- No tests or lint run because this was a documentation-only milestone entry.
+
+Follow-ups:
+
+- Use Portal API Security & Access Boundary Assessment as the recommended next architecture stream.
+
+---
+
 ### CL-2026-06-18-CRM-CASE-PROGRESS-CONTEXT: record CRM Case Progress Display investigation conclusions
 
 date: 2026-06-18