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/lib/components/GuessesTable.svelte

@@ -1,20 +1,8 @@
 <script lang="ts">
 	import { bibleBooks } from "$lib/types/bible";
+	import { getFirstLetter, type Guess } from "$lib/utils/game";
 	import Container from "./Container.svelte";
 
-	interface Guess {
-		book: {
-			id: string;
-			name: string;
-			testament: string;
-			section: string;
-		};
-		testamentMatch: boolean;
-		sectionMatch: boolean;
-		adjacent: boolean;
-		firstLetterMatch: boolean;
-	}
-
 	let {
 		guesses,
 		correctBookId,
@@ -28,11 +16,6 @@
 		return "bg-red-500 border-red-600";
 	}
 
-	function getFirstLetter(bookName: string): string {
-		const match = bookName.match(/[a-zA-Z]/);
-		return match ? match[0] : bookName[0];
-	}
-
 	function getBoxContent(
 		guess: Guess,
 		column: "book" | "firstLetter" | "testament" | "section",