[DEMO-C] Slice C

[SamMRoberts]

ID: DEMO-C\nType: DEMO\nPhase: 5\nBaseline: true\n\nDescription\nGather → craft → equip → beat a harder mob (end Phase 5).\n\nAcceptance Criteria\n- [ ] Implemented\n- [ ] Tests passing\n- [ ] Docs updated