Add direct code links and clarify save-before-feedback order
Align reward flow, item timing and tests with current implementation
docs(team5): add Sprint 4 item discovery diagrams
docs(team5): document Sprint 4 item discovery
Add Team 7 victory and defeat screen wiki pages
Updated Reward System (markdown)
Restore Reward System to Celeste's f4173a8 version
Update Sprint 3 inventory, item pool, effects, UI and persistence status