fix(analysis): Ensure fresh evaluation for hints and analysis

This commit fixes a bug where the AI tutor and end-game analysis would use stale data from previous evaluations.

The `Tutor` component now receives the live `game` instance and has a new function, `evaluateCurrentPosition`, which is called on-demand when a user requests a hint or the best move. This ensures the LLM receives up-to-date information.

The end-game analysis was also corrected to use the proper evaluation data when constructing the move history, preventing incorrect analysis of mistakes and blunders.

The test suite was improved by restoring deleted tests, adding a new test to verify the fix, and making existing tests more robust.

src/components/Tutor.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useRef } from "react";
 import { Stockfish, StockfishEvaluation } from "@/lib/stockfish";
-import { Move } from "chess.js";
+import { Chess, Move } from "chess.js";
 import { getGenAIModel } from "@/lib/gemini";
 import { ChatSession } from "@google/generative-ai";
 import { Send, Bot, User as UserIcon, Loader2, Lightbulb, Trophy } from "lucide-react";
@@ -14,6 +14,7 @@ import { useTranslation } from '@/lib/i18n/useTranslation';
 import { SupportedLanguage } from '@/lib/i18n/translations';
 
 interface TutorProps {
+    game: Chess;
     currentFen: string;
     userMove: Move | null;
     computerMove: Move | null;
@@ -34,7 +35,7 @@ interface Message {
     timestamp: number;
 }
 
-export function Tutor({ currentFen, userMove, computerMove, stockfish, evalP0, evalP2, openingData, onAnalysisComplete, apiKey, personality, language, playerColor }: TutorProps) {
+export function Tutor({ game, currentFen, userMove, computerMove, stockfish, evalP0, evalP2, openingData, onAnalysisComplete, apiKey, personality, language, playerColor }: TutorProps) {
     const [messages, setMessages] = useState<Message[]>([]);
     const [input, setInput] = useState("");
     const [isLoading, setIsLoading] = useState(false);
@@ -198,6 +199,20 @@ React to this exchange as the player.
         analyzeExchange();
     }, [computerMove, chatSession, evalP0, evalP2, userMove, onAnalysisComplete, openingData, language]);
 
+    const evaluateCurrentPosition = async () => {
+        if (!stockfish) {
+            return null;
+        }
+        try {
+            const currentFen = game.fen();
+            const evaluation = await stockfish.evaluate(currentFen, 15);
+            return evaluation;
+        } catch (error) {
+            console.error("Error evaluating position:", error);
+            return null;
+        }
+    };
+
     const sendMessageToChat = async (text: string, isSystemMessage: boolean = false) => {
         if (!chatSession) return;
 
@@ -212,10 +227,13 @@ React to this exchange as the player.
             let finalPrompt = text;
             if (!isSystemMessage) {
                 const lower = text.toLowerCase();
+                const evaluation = await evaluateCurrentPosition();
+
                 if (lower.includes("best move") || lower.includes("solution") || lower.includes("tell me")) {
-                    finalPrompt = `[SYSTEM TRIGGER: exact_move]\nUser Question: ${text}\nData: Post-Eval Best Move: ${evalP2?.bestMove}`;
+
+                    finalPrompt = `[SYSTEM TRIGGER: exact_move]\nUser Question: ${text}\nData: Best Move: ${evaluation?.bestMove}, Score: ${evaluation?.score}, Mate: ${evaluation?.mate}`;
                 } else if (lower.includes("hint") || lower.includes("tip") || lower.includes("help")) {
-                    finalPrompt = `[SYSTEM TRIGGER: hint]\nUser Question: ${text}`;
+                    finalPrompt = `[SYSTEM TRIGGER: hint]\nUser Question: ${text}\nData: Best Move: ${evaluation?.bestMove}, Score: ${evaluation?.score}, Mate: ${evaluation?.mate}`;
                 }
             }