Add pc-gaming skill for hardware specs and graphics settings advice

skills/pc-gaming/references/game-settings.md

@@ -0,0 +1,17 @@
+# Optimal Game Settings (RX 7900 XTX @ 4K)
+
+## Cyberpunk 2077
+- **Recommended:** 1440p internal + RT Overdrive + FSR Quality (output 4K)
+- **Why:** Path tracing transforms the game visually. Native 4K without RT looks flat by comparison.
+- **Expected FPS:** ~40-50 with FSR Quality
+- **Alternative:** Native 4K, RT off, Ultra preset → 60+ FPS (but less impressive lighting)
+
+## Hogwarts Legacy
+- **Recommended:** Native 4K, RT off, Ultra settings
+- **Why:** RT only adds subtle reflections/shadows — not worth the FPS cost. Native 4K clarity wins.
+- **Expected FPS:** 60+ without RT
+- **With RT:** ~35-45 FPS at 4K (not smooth enough)
+
+---
+*Add new games as they're researched. Include source/benchmark date.*
+*Last updated: 2026-02-26*