feat: add homelab deployment configs, documentation, and automation scripts

scripts/test_dcgm_metrics.py

@@ -0,0 +1,12 @@
+import requests
+
+for ip in ["140.44.4.81", "140.44.4.82", "140.44.4.83", "140.44.4.84"]:
+    try:
+        r = requests.get(f"http://{ip}:9400/metrics", timeout=3)
+        print(f"=== {ip}:9400 -> HTTP {r.status_code}, len={len(r.text)} ===")
+        gpu_metrics = [line for line in r.text.split('\n') if 'DCGM_FI_DEV_GPU_UTIL' in line or 'DCGM_FI_DEV_FB_USED' in line or 'DCGM_FI_DEV_GPU_TEMP' in line]
+        for m in gpu_metrics[:3]:
+            print("  ", m)
+    except Exception as e:
+        print(f"{ip}:9400 -> error: {e}")
+