Initial commit: Beszel fork with Domain Locker integration

DOMAIN_INTEGRATION_PLAN.md

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+# Domain Locker + Beszel Integration Plan
+
+## Overview
+Integrate Domain Locker's domain expiry monitoring as a third dashboard section in Beszel:
+1. Device Monitoring (Systems)
+2. Website Monitoring (Monitors) 
+3. Domain Monitoring (Domains)
+
+## Features to Port
+- WHOIS lookup (registrar, dates, status)
+- SSL certificate monitoring
+- DNS records (NS, MX, TXT)
+- IP addresses (IPv4/IPv6)
+- Host info (location, ISP)
+- Domain valuation
+- Tags
+- Change history
+- Auto-recognition when adding website monitors
+
+## Implementation Steps
+
+### 1. Backend (Go)
+- Domain entity types
+- WHOIS service with multiple fallback methods
+- Domain collections (domains, domain_history)
+- Domain scheduler for expiry checks
+- Domain API handlers
+
+### 2. Frontend (React/TypeScript)
+- Domain API client
+- Domain table component
+- Domain dialog (add/edit with WHOIS auto-fill)
+- Dashboard integration (third section)
+- Link to website monitors
+
+### 3. Integration
+- Optional domain tracking when creating website monitors
+- Registrar recognition fixes
+- Favicon fetching
+
+## File Structure
+```
+beszel/internal/
+├── entities/domain/domain.go
+├── hub/domains/
+│   ├── whois/
+│   │   └── lookup.go
+│   ├── scheduler.go
+│   └── api.go
+└── site/src/
+    ├── lib/domains.ts
+    └── components/
+        └── domains-table/
+            ├── domains-table.tsx
+            └── domain-dialog.tsx
+```