Document approved design iteration

TASKS.md

@@ -1,9 +1,26 @@
 # Reactor Maintenance Rewrite Tasks
 
 ## Current State
+- Approved design iteration targets the simulation model, rule removal, action economy, reactor requirements, and editor layer workflow.
+- Work is proceeding on branch `design-iteration-structural-editor` in methodical commits: docs/tasks, simulation rework, editor rework, cleanup.
 
 ## Completed Work
+- Created the approved implementation plan for:
+  - single multi-service consumers,
+  - count-based reactor requirements,
+  - cell-derived doors,
+  - 0-10 structural integrity,
+  - fixed automatic rule systems,
+  - quick/lengthy action economy,
+  - all-seeing-eye viewing without persistent unlocking,
+  - layer-aware editor visualization and tools.
 
 ## Current Work
+- Update design documentation to match the approved model.
+- Rework simulation state, validation, serialization, forecasts, and tests.
+- Rework Win2D editor layer selection, rendering, tool filtering, drag behavior, and removed panels.
 
 ## Future Work
+- Add authored sample levels once the new schema stabilizes.
+- Tune structural integrity balancing after playtesting.
+- Extend UI affordances for inspecting per-carrier consumer service state.