Refactor game logic into utility modules and add cross-device sync

Extracted game state management, share logic, and stats API calls into dedicated modules (game-persistence.svelte.ts, share.ts, stats-client.ts), and moved daily verse loading to client-side to fix timezone issues. Added a guesses column to daily_completions for cross-device state restoration for logged-in users, a new GET /api/stats endpoint, and a staging deploy script.

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

src/routes/api/stats/+server.ts

@@ -0,0 +1,63 @@
+import type { RequestHandler } from './$types';
+import { db } from '$lib/server/db';
+import { dailyCompletions } from '$lib/server/db/schema';
+import { and, eq, asc } from 'drizzle-orm';
+import { json } from '@sveltejs/kit';
+
+export const GET: RequestHandler = async ({ url }) => {
+	try {
+		const anonymousId = url.searchParams.get('anonymousId');
+		const date = url.searchParams.get('date');
+
+		if (!anonymousId || !date) {
+			return json({ error: 'Invalid data' }, { status: 400 });
+		}
+
+		const userCompletions = await db
+			.select()
+			.from(dailyCompletions)
+			.where(and(
+				eq(dailyCompletions.anonymousId, anonymousId),
+				eq(dailyCompletions.date, date)
+			))
+			.limit(1);
+
+		if (userCompletions.length === 0) {
+			return json({ error: 'No completion found' }, { status: 404 });
+		}
+
+		const userCompletion = userCompletions[0];
+		const guessCount = userCompletion.guessCount;
+
+		const allCompletions = await db
+			.select()
+			.from(dailyCompletions)
+			.where(eq(dailyCompletions.date, date))
+			.orderBy(asc(dailyCompletions.completedAt));
+
+		const totalSolves = allCompletions.length;
+
+		const solveRank = allCompletions.findIndex(c => c.anonymousId === anonymousId) + 1;
+
+		const betterGuesses = allCompletions.filter(c => c.guessCount < guessCount).length;
+		const guessRank = betterGuesses + 1;
+
+		const tiedCount = allCompletions.filter(c => c.guessCount === guessCount && c.anonymousId !== anonymousId).length;
+
+		const totalGuesses = allCompletions.reduce((sum, c) => sum + c.guessCount, 0);
+		const averageGuesses = Math.round((totalGuesses / totalSolves) * 10) / 10;
+
+		const betterOrEqualCount = allCompletions.filter(c => c.guessCount <= guessCount).length;
+		const percentile = Math.round((betterOrEqualCount / totalSolves) * 100);
+
+		const guesses = userCompletion.guesses ? JSON.parse(userCompletion.guesses) : undefined;
+
+		return json({
+			success: true,
+			stats: { solveRank, guessRank, totalSolves, averageGuesses, tiedCount, percentile, guesses }
+		});
+	} catch (err) {
+		console.error('Error fetching stats:', err);
+		return json({ error: 'Failed to fetch stats' }, { status: 500 });
+	}
+};