move the database and mailer to own log sub dir, add all email change logic

types/server/server.ts

@@ -1,3 +1,5 @@
+import type { UserSession } from "#types/config";
+
 type Query = Record<string, string>;
 type Params = Record<string, string>;
 
@@ -5,6 +7,7 @@ interface ExtendedRequest extends Request {
 	startPerf: number;
 	query: Query;
 	params: Params;
+	session?: UserSession | null;
 }
 
 export type { ExtendedRequest, Query, Params };