RPG Plus: prologue, village and forest, trainer and seer, sample chest page and slime route, test suite

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitignore

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+# Godot 4.x
+.godot/
+.idea/
+sdk/
+bin/
+obj/
+
+#ai
+.omo/
+.opencode/
+
+gen/
+obj/
+bin/
+
+*.tres~
+*.tscn~
+
+# GDScript LSP
+.godot/
+
+# Export
+*.exe
+*.dmg
+*.apk
+*.aab
+*.pck
+*.zip
+*.log
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Editor
+*.import
+*.godot.uid