fix: wire AuthBlocks:Email:From into EmailConnection.FromAddress

Mailtrap rejected invite sends because FromAddress was never populated. Adds the missing config assignment alongside Host/Token, and documents the From key in authblocks.example.json.

DeepDrftAPI/Program.cs

@@ -103,10 +103,12 @@ builder.Services.AddAuthBlocks(options =>
     options.JwtSettings.Audience = builder.Configuration["AuthBlocks:Jwt:Audience"]
         ?? throw new InvalidOperationException("AuthBlocks:Jwt:Audience is required");
 
-    options.EmailConnection.Host  = builder.Configuration["AuthBlocks:Email:Host"]
+    options.EmailConnection.Host        = builder.Configuration["AuthBlocks:Email:Host"]
         ?? throw new InvalidOperationException("AuthBlocks:Email:Host is required");
-    options.EmailConnection.Token = builder.Configuration["AuthBlocks:Email:Token"]
+    options.EmailConnection.Token       = builder.Configuration["AuthBlocks:Email:Token"]
         ?? throw new InvalidOperationException("AuthBlocks:Email:Token is required");
+    options.EmailConnection.FromAddress = builder.Configuration["AuthBlocks:Email:From"]
+        ?? throw new InvalidOperationException("AuthBlocks:Email:From is required");
 
     options.AdminUserSettings = new AdminUserSettings
     {

DeepDrftAPI/environment/authblocks.example.json

@@ -8,7 +8,8 @@
     },
     "Email": {
       "Host": "smtp.your-provider.com",
-      "Token": "your-email-token-here"
+      "Token": "your-email-token-here",
+      "From": "noreply@yourdomain.com"
     },
     "Admin": {
       "UserName": "admin",