Initial commit: infrastructure documentation

Includes:
- Hardware environment reference (Proxmox cluster, VMs, LXCs)
- Services inventory with current deployments
- Caddy & DNS configuration reference
- Runbooks for common deployment procedures

Recent additions:
- SearXNG deployment (utility CT 102, search.echo6.co)
- TOC conversion to Proxmox with cortex VM
- Syncthing sync between Contabo and cortex

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

docs/software/dns.md

@@ -0,0 +1,64 @@
+# GoDaddy DNS Management
+
+## Script Location
+
+`~/bin/godaddy-dns.py`
+
+## API Credentials
+
+Stored in `/home/zvx/projects/.ref/credentials` as:
+- `GODADDY_API_KEY`
+- `GODADDY_API_SECRET`
+
+## Key IPs for DNS Records
+
+| Purpose | IP |
+|---------|-----|
+| External (home services) | `199.6.36.163` |
+| Contabo Server | `5.189.158.149` |
+
+## Managed Domains
+
+arclightvanguard.com, echo6.co, echo6.org, happylittlellc.com, idahomesh.com, k7zvx.com, lpmesh.com, maliceinwonderland.org, matthewwayne.com, smugglersden.co, underdogs.cc
+
+## Usage Examples
+
+```bash
+# List all domains
+godaddy-dns.py list-domains
+
+# List records for a domain
+godaddy-dns.py list echo6.co
+
+# Add A record
+godaddy-dns.py add-a echo6.co www 199.6.36.163
+
+# Add CNAME record
+godaddy-dns.py add-cname echo6.co blog www.echo6.co
+
+# Add MX record with priority
+godaddy-dns.py add-mx echo6.co mail.echo6.co --priority=10
+
+# Delete record
+godaddy-dns.py delete echo6.co A www
+
+# Configure MX for all domains
+godaddy-dns.py setup-mail
+```
+
+## Common Patterns
+
+### Point subdomain to home network
+```bash
+godaddy-dns.py add-a echo6.co newservice 199.6.36.163
+```
+
+### Point subdomain to Contabo
+```bash
+godaddy-dns.py add-a echo6.co auth 5.189.158.149
+```
+
+### Create CNAME alias
+```bash
+godaddy-dns.py add-cname echo6.co alias target.echo6.co
+```