Code quality and polish pass for launch

Drop unused EvaluationParseError import in inference module

Remove debug parse-failure print from inference client

UI polish pass: dark theme, embedded figure, bar-cell impressions, trajectory plot

Add inference module with HF API wrapper

Add evaluation module with parsing, validation, and formatting

Refresh README with hero figure and finalize v1 attribute set

Add system prompt and test harness (M2)

Initial project scaffolding