Task 3: Step 2 complete - plan sub-tasks for bug fixes

docs/task3/subtask_4.md

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+# Sub-Task 4: EquipmentTab 2H Offhand Disable (Bug 6)
+
+## Scope
+- **Components affected**:
+  - `components/EquipmentTab.tsx` (offhand slot logic)
+  - Equipment slot rendering components (e.g., `EquipmentSlot.tsx`)
+  - Item type checking logic (to detect 2-handed weapons)
+- **Files potentially affected**:
+  - `types/items.ts` (item type definitions for 2-handed weapons)
+  - `store/equipmentSlice.ts` or similar state management for equipment
+  - `utils/itemUtils.ts` for item type helper functions
+
+## Acceptance Criteria
+1. When a 2-handed staff (or any 2-handed weapon) is equipped in mainhand, offhand slot is visibly disabled/occupied (verify visually: grayed out, tooltip indicating why)
+2. Player cannot equip any item in offhand while 2-handed weapon is equipped (verify via UI and state checks)
+3. Equipping a 2-handed weapon automatically clears any existing offhand item (if required by game logic)
+
+## Dependencies
+- None (independent sub-task)
+
+## Estimated Complexity
+- Medium (item type logic + UI state management)