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/lib/components/GuessesTable.svelte

@@ -5,13 +5,17 @@
 	let {
 		guesses,
 		correctBookId,
-		isWon = false,
-	}: { guesses: Guess[]; correctBookId: string; isWon?: boolean } = $props();
+		minimized = false,
+	}: { guesses: Guess[]; correctBookId: string; minimized?: boolean } = $props();
 
 	let hasGuesses = $derived(guesses.length > 0);
-	let showMinimized = $derived(isWon && guesses.length > 3);
+	let showMinimized = $derived(minimized);
 	let expanded = $state(false);
 
+	$effect(() => {
+		if (!minimized) expanded = false;
+	});
+
 	function getBoxColor(isCorrect: boolean, isAdjacent?: boolean): string {
 		if (isCorrect) return "bg-green-500 border-green-600";
 		if (isAdjacent) return "bg-yellow-500 border-yellow-600";

src/lib/components/WinScreen.svelte

@@ -330,12 +330,9 @@
 	{/if}
 
 	{#if isLoggedIn}
-		<a
-			href="/progress"
-			class="text-sm text-center text-gray-500 dark:text-gray-400 hover:text-emerald-600 dark:hover:text-emerald-400 transition-colors"
-		>
-			View your progress →
-		</a>
+		<div class="signin-prompt">
+			<a href="/progress" class="progress-btn"> 📈 See your progress </a>
+		</div>
 	{:else}
 		<div class="signin-prompt">
 			<p class="signin-text">
@@ -712,4 +709,43 @@
 		height: 1.1rem;
 		flex-shrink: 0;
 	}
+
+	.progress-btn {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		gap: 0.5rem;
+		padding: 0.6rem 1rem;
+		width: 100%;
+		margin-bottom: 0.6rem;
+		background: #059669;
+		color: #fff;
+		border-radius: 0.5rem;
+		font-size: 0.95rem;
+		font-weight: 600;
+		text-decoration: none;
+		transition:
+			background 150ms ease,
+			transform 80ms ease;
+	}
+	.progress-btn:hover {
+		background: #047857;
+		transform: translateY(-1px);
+	}
+	.progress-btn:active {
+		background: #065f46;
+		transform: scale(0.98);
+	}
+	@media (prefers-color-scheme: dark) {
+		.progress-btn {
+			background: #10b981;
+			color: #fff;
+		}
+		.progress-btn:hover {
+			background: #059669;
+		}
+		.progress-btn:active {
+			background: #047857;
+		}
+	}
 </style>