workflow phase 4 only has single sprint planning item in it now

src/modules/bmm/workflows/workflow-status/paths/brownfield-level-3.yaml

@@ -85,64 +85,9 @@ phases:
   - phase: 4
     name: "Implementation"
     required: true
-    phase_initialization:
+    workflows:
       - id: "sprint-planning"
         required: true
         agent: "sm"
         command: "sprint-planning"
-        note: "Initialize sprint tracking - run once when entering Phase 4"
-    epic_loop: "for_each_epic"
-    epic_iteration:
-      setup_workflows:
-        - id: "tech-spec"
-          required: true
-          agent: "architect"
-          command: "tech-spec"
-          note: "Must respect existing patterns"
-
-      story_loop: "for_each_story_in_epic"
-      story_workflows:
-        - id: "create-story"
-          required: true
-          agent: "sm"
-          command: "create-story"
-        - id: "story-context"
-          required: true
-          agent: "sm"
-          command: "story-context"
-          note: "Heavy emphasis on existing code context"
-        - id: "validate-story-context"
-          optional: true
-          agent: "sm"
-          command: "validate-story-context"
-          note: "Ensure no breaking changes"
-        - id: "story-ready"
-          optional: true
-          agent: "sm"
-          command: "story-ready"
-        - id: "dev-story"
-          required: true
-          agent: "dev"
-          command: "dev-story"
-        - id: "review-story"
-          optional: true
-          agent: "dev"
-          command: "review-story"
-          note: "Check integration points"
-        - id: "story-done"
-          required: true
-          agent: "dev"
-          command: "story-done"
-
-      completion_workflows:
-        - id: "integration-test"
-          required: true
-          agent: "dev"
-          command: "integration-test"
-        - id: "retrospective"
-          required: true
-          agent: "sm"
-          command: "retrospective"
-
-story_naming: "story-<epic>.<story>.md"
-brownfield_note: "All changes must integrate seamlessly with existing system"
+        note: "Creates sprint plan with all stories - subsequent work tracked in sprint plan output, not workflow-status"