Initial commit: ZIL source + Python game engine

Original ZIL source code for The Hitchhiker's Guide to the Galaxy (Infocom, 1984)
plus a native Python text adventure engine with the Earth opening sequence playable
(Bedroom → Front Porch → Front of House → Country Lane → Pub).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,7 @@
+[project]
+name = "h2g2"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.14"
+dependencies = []