- Split GameBoy chassis brand header: 'AKT III' on clean dedicated second line
- Add 5-room tavern architecture: Schankraum, Nebenraum, Marktplatz, Hinterland, Hinterzimmer
- Introduce Nebenraum (Kemenate/Atelier) with Amy at her easel painting the neon banner and Zuluman magic mirror
- Update Marktplatz scene with Mario juggling chainsaws/hops and NAT on the festival stage
- Implement Wildschwein-Schnick-Schnack-Schnuck minigame against NAT (Best of 3, Keiler > Dickicht > Lanze > Keiler)
- Replace secret tap with cellar floor trapdoor ('Luke zum Hinterraum') initially invisible
- Update automated playtest covering all 25 screens with zero console/network errors
- Document all architectural decisions in projects/sasch40/AGENTS.md