Updates Project_Context.md + Project_Roadmap.md for the tower-sell work (refund rules, coin VFX/SFX, refund excluded from income) and the PathfindingService budgeted re-path scheduler that removed the sell/placement frame hitch. Follows commit 0b4cde4 which landed the code + art.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>