move environment to src/environment add smtp env vars, move some other items

types/config/mailer.ts

@@ -0,0 +1,42 @@
+type MailerConfig = {
+	address: string;
+	port: number;
+	from: string;
+	username: string;
+	password: string;
+	secure: boolean;
+	pool: boolean;
+	connectionTimeout: number;
+	socketTimeout: number;
+	maxConnections: number;
+	maxMessages: number;
+	replyTo: string;
+};
+
+type EmailOptions = {
+	to: string | string[];
+	subject: string;
+	text?: string;
+	html?: string;
+	from?: string;
+	replyTo?: string;
+	cc?: string | string[];
+	bcc?: string | string[];
+	attachments?: EmailAttachment[];
+};
+
+type EmailAttachment = {
+	filename: string;
+	content?: Buffer | string;
+	path?: string;
+	contentType?: string;
+	cid?: string; // content-ID for embedded images
+};
+
+type EmailResult = {
+	success: boolean;
+	messageId?: string;
+	error?: string;
+};
+
+export type { MailerConfig, EmailOptions, EmailAttachment, EmailResult };