style: apply prettier formatting to all files

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

packages/backend/src/lib/email.ts

@@ -4,10 +4,12 @@ const transporter = nodemailer.createTransport({
   host: process.env.SMTP_HOST || "localhost",
   port: parseInt(process.env.SMTP_PORT || "587"),
   secure: process.env.SMTP_SECURE === "true",
-  auth: process.env.SMTP_USER ? {
-    user: process.env.SMTP_USER,
-    pass: process.env.SMTP_PASS,
-  } : undefined,
+  auth: process.env.SMTP_USER
+    ? {
+        user: process.env.SMTP_USER,
+        pass: process.env.SMTP_PASS,
+      }
+    : undefined,
 });
 
 const FROM = process.env.EMAIL_FROM || "noreply@sexy.pivoine.art";

packages/backend/src/lib/gamification.ts

@@ -79,7 +79,10 @@ export async function updateUserStats(db: DB, userId: string): Promise<void> {
     const playbacksResult = await db.execute(sql`
       SELECT COUNT(*) as count FROM recording_plays
       WHERE user_id = ${userId}
-      AND recording_id NOT IN (${sql.join(ownIds.map(id => sql`${id}`), sql`, `)})
+      AND recording_id NOT IN (${sql.join(
+        ownIds.map((id) => sql`${id}`),
+        sql`, `,
+      )})
     `);
     playbacksCount = parseInt((playbacksResult.rows[0] as any)?.count || "0");
   } else {
@@ -135,11 +138,7 @@ export async function updateUserStats(db: DB, userId: string): Promise<void> {
   }
 }
 
-export async function checkAchievements(
-  db: DB,
-  userId: string,
-  category?: string,
-): Promise<void> {
+export async function checkAchievements(db: DB, userId: string, category?: string): Promise<void> {
   let achievementsQuery = db
     .select()
     .from(achievements)
@@ -176,7 +175,7 @@ export async function checkAchievements(
         .update(user_achievements)
         .set({
           progress,
-          date_unlocked: isUnlocked ? (existing[0].date_unlocked || new Date()) : null,
+          date_unlocked: isUnlocked ? existing[0].date_unlocked || new Date() : null,
         })
         .where(
           and(