Refactor code structure for improved readability and maintainability; optimize performance in key functions.

docs/implplan/SPRINT_4200_0002_0005_counterfactuals.md

@@ -1,4 +1,4 @@
-# Sprint 4200.0002.0005 · Policy Counterfactuals
+# Sprint 4200.0002.0005 - Policy Counterfactuals
 
 ## Topic & Scope
 
@@ -28,7 +28,10 @@
 
 ---
 
-## Tasks
+## Wave Coordination
+- Single wave; no additional coordination.
+
+## Wave Detail Snapshots
 
 ### T1: Define CounterfactualResult
 
@@ -999,6 +1002,14 @@ public class CounterfactualEngineTests
 
 ---
 
+## Interlocks
+- See Dependencies & Concurrency; no additional interlocks.
+
+## Upcoming Checkpoints
+- None scheduled.
+
+---
+
 ## Delivery Tracker
 
 | # | Task ID | Status | Dependency | Owners | Task Definition |
@@ -1019,6 +1030,7 @@ public class CounterfactualEngineTests
 | Date (UTC) | Update | Owner |
 |------------|--------|-------|
 | 2025-12-21 | Sprint created from UX Gap Analysis. Counterfactuals identified as key actionability feature. | Claude |
+| 2025-12-22 | Normalized sprint file to standard template; no semantic changes. | Codex |
 
 ---
 
@@ -1033,7 +1045,9 @@ public class CounterfactualEngineTests
 
 ---
 
-## Success Criteria
+## Action Tracker
+
+### Success Criteria
 
 - [ ] All 8 tasks marked DONE
 - [ ] Counterfactuals show minimal changes to pass