Add infra-tool: infrastructure registry with Incus container deployment

Service registry & discovery system that aggregates infrastructure metadata
from Incus, K8s, APISIX, and BunnyCDN into NocoDB. Includes FastAPI HTTP API,
systemd timer for 15-min auto-sync, and dual-mode collectors (REST API for
container deployment, CLI/SSH fallback for local use). Deployed to jp1:infra-tool
with Tailscale socket proxy for host network visibility.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,10 @@
+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv