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/utils/game.ts

@@ -1,5 +1,13 @@
 import { bibleBooks, type BibleBook } from '$lib/types/bible';
 
+export interface Guess {
+	book: BibleBook;
+	testamentMatch: boolean;
+	sectionMatch: boolean;
+	adjacent: boolean;
+	firstLetterMatch: boolean;
+}
+
 export function getBookById(id: string): BibleBook | undefined {
 	return bibleBooks.find((b) => b.id === id);
 }
@@ -10,7 +18,47 @@ export function isAdjacent(id1: string, id2: string): boolean {
 	return !!(b1 && b2 && Math.abs(b1.order - b2.order) === 1);
 }
 
-export function getGrade(numGuesses: number, popularity: number): string {
+export function getFirstLetter(bookName: string): string {
+	const match = bookName.match(/[a-zA-Z]/);
+	return match ? match[0] : bookName[0];
+}
+
+export function evaluateGuess(guessBookId: string, correctBookId: string): Guess | null {
+	const book = getBookById(guessBookId);
+	const correctBook = getBookById(correctBookId);
+	if (!book || !correctBook) return null;
+
+	const testamentMatch = book.testament === correctBook.testament;
+	const sectionMatch = book.section === correctBook.section;
+	const adjacent = isAdjacent(guessBookId, correctBookId);
+
+	// Special case: if correct book is in the Epistles + starts with "1",
+	// any guess starting with "1" counts as first letter match
+	const correctIsEpistlesWithNumber =
+		(correctBook.section === "Pauline Epistles" ||
+			correctBook.section === "General Epistles") &&
+		correctBook.name[0] === "1";
+	const guessIsEpistlesWithNumber =
+		(book.section === "Pauline Epistles" ||
+			book.section === "General Epistles") &&
+		book.name[0] === "1";
+
+	const firstLetterMatch =
+		correctIsEpistlesWithNumber && guessIsEpistlesWithNumber
+			? true
+			: getFirstLetter(book.name).toUpperCase() ===
+				getFirstLetter(correctBook.name).toUpperCase();
+
+	return {
+		book,
+		testamentMatch,
+		sectionMatch,
+		adjacent,
+		firstLetterMatch,
+	};
+}
+
+export function getGrade(numGuesses: number): string {
 	if (numGuesses === 1) return "S+";
 	if (numGuesses === 2) return "A+";
 	if (numGuesses === 3) return "A";
@@ -49,4 +97,4 @@ export function generateUUID(): string {
 		const v = c === "x" ? r : (r & 0x3) | 0x8;
 		return v.toString(16);
 	});
-}
+}