Crush.skill v2.4.3

This release turns Crush.skill from a persona chat simulator into a relationship-literacy trainer with real conversational stakes.

Highlights

Added a Relationship Coach engine that classifies each user line as normal chat, flirt probe, validation seeking, intimacy escalation, hurtful push-pull, or boundary/soft decline.
Added a CLI relationship readout HUD: risk level, whether to flirt or slow down, what the other person's signal likely means, and what to say next.
Added a real-stakes persona layer: the persona is no longer endlessly accommodating, will not confirm "I like you" too quickly, and will react with defensiveness or hurt when pressured or toyed with.
Added direct validation detection for lines like "Do you like me?" and context follow-ups like "Tell the truth."
Added hurtful push-pull detection for lines like "Because I don't like you" and "I was just teasing you," with anti-manipulation coaching.
Reduced game-like score interpretation by making the CLI teach relationship reads instead of only printing numeric deltas.
Expanded smoke tests for symbolic naming, validation pressure, hurtful push-pull, proactive timeline behavior, and CLI errors.