feat: improve guesses collapse timing, win screen CTA, and progress page polish

- GuessesTable now accepts a `minimized` prop instead of deriving collapse from `isWon`, giving the parent control over timing
- Delay collapsing guesses grid until win animations complete (1800ms), skipped for already-completed puzzles
- Replace plain progress link on win screen with a styled green button matching other CTAs
- Progress page: remove redundant subtitle and nav button from header, add book status legend, add axis labels to guess history chart

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/routes/+page.svelte

@@ -53,6 +53,7 @@
 	let statsData = $state<StatsData | null>(null);
 	let streak = $state(0);
 	let streakPercentile = $state<number | null>(null);
+	let guessesMinimized = $state(false);
 
 	const persistence = createGamePersistence(
 		() => dailyVerse.date,
@@ -204,6 +205,23 @@
 		}
 	});
 
+	// Delay collapsing the guesses grid until animations complete (mirrors showWinScreen delay)
+	$effect(() => {
+		if (!isWon || persistence.guesses.length <= 3) {
+			guessesMinimized = false;
+			return;
+		}
+		if (persistence.isWinAlreadyTracked()) {
+			guessesMinimized = true;
+		} else {
+			const animationDelay = 1800;
+			const timeoutId = setTimeout(() => {
+				guessesMinimized = true;
+			}, animationDelay);
+			return () => clearTimeout(timeoutId);
+		}
+	});
+
 	// Track win analytics
 	$effect(() => {
 		if (!browser || !isWon) return;
@@ -333,7 +351,7 @@
 				<GuessesTable
 					guesses={persistence.guesses}
 					{correctBookId}
-					{isWon}
+					minimized={guessesMinimized}
 				/>
 			</div>