fix(mail): show "PawFeed Team" as sender name instead of "team" (Gitea #20)

MAIL_FROM is a bare address with no display name, so mail clients fell
back to showing the local-part as the sender. Wrap it in a proper
display name in code instead of depending on env var formatting.

src/lib/mail.ts

@@ -43,6 +43,10 @@ interface SendMailInput {
 }
 
 export async function sendMail({ to, subject, text, html }: SendMailInput): Promise<void> {
-  const from = process.env.MAIL_FROM ?? process.env.SMTP_USER;
+  const fromAddress = process.env.MAIL_FROM ?? process.env.SMTP_USER;
+  // Wrap in a display name — a bare address (e.g. "team@pawfeed.org") makes
+  // most mail clients fall back to showing the local-part ("team") as the
+  // sender name instead of something recognizable (Gitea #20).
+  const from = `"PawFeed Team" <${fromAddress}>`;
   await getTransporter().sendMail({ from, to, subject, text, html });
 }