feat: Implement SQLite backend and configuration UI

gemini.md

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+Make the following updates to the project and update the readme file as needed for documentation.
+
+Add a sqlite backend for the following:
+- Game logs: Track date and time played, final scores, and end condition (escape, loss, assassination outcome, etc).
+- Configuration: Score thresholds, win conditions, event descriptions, etc.
+  - Default configuration should be provided using current hardcoded values.
+  - Allow user to modify configuration via a simple web form.
+  - Store configuration changes in the database.