feat: create email-server-worker workspace

Initialize workspace for email server worker service
- Polls MongoDB for email status changes
- Sends verification and notification emails
- Updates email statuses
- Runs as standalone background worker

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

email-server-worker/README.md

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+# Email Server Worker
+
+This workspace contains the email server worker service for the Evidencija Režija tenant notification system.
+
+## Purpose
+
+This service manages email operations by:
+- Polling MongoDB for email status changes
+- Detecting unverified tenant emails (EmailStatus.Unverified)
+- Sending verification emails to tenants
+- Updating email status to VerificationPending
+- Sending scheduled notifications (rent due, utility bills)
+
+## Architecture
+
+This is a standalone background worker service that:
+- Runs independently from the Next.js web-app
+- Communicates via the shared MongoDB database
+- Integrates with email service provider (e.g., Mailgun, SendGrid)
+
+## Setup
+
+TBD
+
+## Environment Variables
+
+TBD