frank-primary: Lucebox DeepSeek-V4.1-Flash-ROCMFP23 quadlet + deploy handler

Replaces frank-medium (vllm-radiance TP=2) on :7770. The 377.2 GiB
43-layer MoE (256 routed experts, top-6) is mmapped: dense work and the
MLA KV cache on the R9700, routed experts computed on CPU from the
page cache (246 GiB RAM). The unit bypasses the image entrypoint
(Qwen/DFlash-only flag set) and execs luce_server with the DS4 launch
shape; --ds4-fused-decode's monolithic-load fallback IS the serving
mode here. deploy_llm_primary gates on image + model byte count,
stops/masks the radiance unit, waits for :7770, installs and starts.
Runbook: frank-primary-lucebox-ds4.md.

dankserver/frank-primary/frank-primary-healthcheck.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+"""frank-primary health probe: 200 on /health only once the engine serves.
+
+File-based (not an inline HealthCmd) because the podman 5.x v1 quadlet
+generator splits HealthCmd on spaces into an argv array.
+"""
+import sys
+import urllib.request
+
+try:
+    with urllib.request.urlopen("http://127.0.0.1:7770/health", timeout=10) as r:
+        sys.exit(0 if r.status == 200 else 1)
+except Exception:
+    sys.exit(1)