Transmission #046: PDD planning for skill and character levelling

Opened a new Prompt-Driven Development planning folder for skill-level curves, overall level and stat points, inventory tabs (skills browse vs base stats), toasts, and a character-level achievement hook—building on the existing stats, achievements, and quests work. Artifacts live under .agents/planning/2026-04-23-skill-character-levelling/ for iterative requirements and later design.