Add initial infrastructure and backup scripts for Gitea and homelab deployment

- Create README.md with project layout and quick start instructions
- Implement backup scripts for Gitea, including database and repository exports
- Add systemd service and timer for automated Gitea backups
- Develop bootstrap scripts for homelab and VPS setup
- Document architecture and restore procedures
- Configure Caddy reverse proxy and Docker Compose for service management
- Establish secrets management guidelines

edge/caddy/Caddyfile

@@ -0,0 +1,15 @@
+git.sketchferret.com {
+  reverse_proxy 100.115.54.124:4445
+}
+
+home.sketchferret.com {
+  reverse_proxy 100.115.54.124:5300
+}
+
+esphome.sketchferret.com {
+  reverse_proxy 100.115.54.124:6052
+}
+
+calfill.sketchferret.com {
+  reverse_proxy 100.115.54.124:5300
+}