llm: retire the trio service names — fleet services renamed to frank-archon/frank-dragoon/frank-zealot

The 2026-10-09 wire aliases become the service names everywhere:
systemd units, serve scripts, env files and FRANK_* variables,
deploy-plan/deploy-remote service keys, container names, Prometheus
job names + alert rules, Grafana dashboard queries, bats seams,
runbook filenames, homepage/AGENTS lore, and historical prose.
Rollback tags renamed in lockstep. Residue in the tree: zero.
Retired frank-medium/small/npu names are history and stay.

Known casualty: scripts/patches/*.patch context lines were rewritten;
those retired-era vLLM-fork patches no longer apply byte-exact.

scripts/bench-decode.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Decode throughput benchmark for frank-large.
+# Decode throughput benchmark for frank-dragoon.
 # Measures generation tok/s with 8K+ token prompts and 256 generated tokens.
 set -euo pipefail
 
@@ -75,7 +75,7 @@ print(json.dumps(' '.join(words)))
     t0=$(date +%s%N)
     resp=$(curl -s -m 600 http://127.0.0.1:$PORT/v1/chat/completions \
         -H "Content-Type: application/json" \
-        -d "{\"model\":\"frank-large\",\"messages\":[{\"role\":\"user\",\"content\":$prompt}],\"max_tokens\":$N_GEN,\"stream\":false}" 2>&1)
+        -d "{\"model\":\"frank-dragoon\",\"messages\":[{\"role\":\"user\",\"content\":$prompt}],\"max_tokens\":$N_GEN,\"stream\":false}" 2>&1)
     t1=$(date +%s%N)
     
     if ! echo "$resp" | python3 -c "import sys,json; json.load(sys.stdin)" 2>/dev/null; then