Initial commit: Infrastructure host tracking app

Fastify + node:sqlite single-process app with vanilla JS UI for
looking up hosts by hardware ID, hostname, or asset ID. Includes
per-host network interface tracking, sites/rooms/server-types CRUD,
Docker packaging, and a Gitea Actions workflow that runs tests then
builds and pushes to gitea.thewrightserver.net/josh/infrastructure.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,14 @@
+services:
+  infrastructure:
+    image: gitea.thewrightserver.net/josh/infrastructure:latest
+    pull_policy: always
+    restart: unless-stopped
+    ports:
+      - "${PORT:-3000}:3000"
+    volumes:
+      - infrastructure-data:/app/data
+    environment:
+      - NODE_ENV=production
+
+volumes:
+  infrastructure-data: