Moves setup files into embedded package.

internal/setup/cluster-services/smtp/README.md

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+# SMTP Configuration Service
+
+This service configures SMTP settings for Wild Cloud applications to send transactional emails.
+
+## Overview
+
+The SMTP service doesn't deploy any Kubernetes resources. Instead, it helps configure global SMTP settings that can be used by Wild Cloud applications like Ghost, Gitea, and others for sending:
+
+- Password reset emails
+- User invitation emails  
+- Notification emails
+- Other transactional emails
+
+## Installation
+
+```bash
+./setup/cluster-services/smtp/install.sh
+```
+
+## Configuration
+
+The setup script will prompt for:
+
+- **SMTP Host**: Your email provider's SMTP server (e.g., `email-smtp.us-east-2.amazonaws.com` for AWS SES)
+- **SMTP Port**: Usually `465` for SSL or `587` for STARTTLS
+- **SMTP User**: Username or access key for authentication
+- **From Address**: Default sender email address
+- **SMTP Password**: Your password, secret key, or API key (entered securely)
+
+## Supported Providers
+
+- **AWS SES**: Use your Access Key ID as user and Secret Access Key as password
+- **Gmail/Google Workspace**: Use your email as user and an App Password as password
+- **SendGrid**: Use `apikey` as user and your API key as password
+- **Mailgun**: Use your Mailgun username and password
+- **Other SMTP providers**: Use your standard SMTP credentials
+
+## Applications That Use SMTP
+
+- **Ghost**: User management, password resets, notifications
+- **Gitea**: User registration, password resets, notifications
+- **OpenProject**: User invitations, notifications
+- **Future applications**: Any app that needs to send emails
+
+## Testing
+
+After configuration, test SMTP by:
+
+1. Deploying an application that uses email (like Ghost)
+2. Using password reset or user invitation features
+3. Checking application logs for SMTP connection issues

internal/setup/cluster-services/smtp/wild-manifest.yaml

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+name: smtp
+description: SMTP relay service for cluster applications
+namespace: smtp-system
+category: infrastructure
+
+serviceConfig:
+  smtpHost:
+    path: cloud.smtp.host
+    prompt: "Enter SMTP host (e.g., email-smtp.us-east-2.amazonaws.com for AWS SES)"
+    default: ""
+    type: string
+  smtpPort:
+    path: cloud.smtp.port
+    prompt: "Enter SMTP port (usually 465 for SSL, 587 for STARTTLS)"
+    default: "465"
+    type: string
+  smtpUser:
+    path: cloud.smtp.user
+    prompt: "Enter SMTP username/access key"
+    default: ""
+    type: string
+  smtpFrom:
+    path: cloud.smtp.from
+    prompt: "Enter default 'from' email address"
+    default: "no-reply@{{ .cloud.domain }}"
+    type: string
+  smtpTls:
+    path: cloud.smtp.tls
+    prompt: "Enable TLS? (true/false)"
+    default: "true"
+    type: string
+  smtpStartTls:
+    path: cloud.smtp.startTls
+    prompt: "Enable STARTTLS? (true/false)"
+    default: "true"
+    type: string