adding message viewer - fixing log view, change to aiosmtplib

migrations/add_email_attachments_table.sql

@@ -0,0 +1,11 @@
+-- Migration: Add EmailAttachment table for storing email attachments on disk
+CREATE TABLE IF NOT EXISTS esrv_email_attachments (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    email_log_id INTEGER NOT NULL,
+    filename TEXT NOT NULL,
+    content_type TEXT,
+    file_path TEXT NOT NULL,
+    size INTEGER,
+    uploaded_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY(email_log_id) REFERENCES esrv_email_logs(id) ON DELETE CASCADE
+);