fix(03): revise plans based on checker feedback

.planning/phases/03-operator-experience/03-04-PLAN.md

@@ -2,8 +2,8 @@
 phase: 03-operator-experience
 plan: 04
 type: execute
-wave: 3
-depends_on: ["03-01", "03-03"]
+wave: 2
+depends_on: ["03-01"]
 files_modified:
   - packages/portal/app/(dashboard)/usage/[tenantId]/page.tsx
   - packages/portal/components/usage-chart.tsx
@@ -69,7 +69,6 @@ Output: Usage dashboard page with Recharts visualizations, budget alert badges,
 @.planning/phases/03-operator-experience/03-CONTEXT.md
 @.planning/phases/03-operator-experience/03-RESEARCH.md
 @.planning/phases/03-operator-experience/03-01-SUMMARY.md
-@.planning/phases/03-operator-experience/03-03-SUMMARY.md
 
 <interfaces>
 <!-- From Plan 01 backend APIs -->