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.

.AGENTTRASH/serve-frank-npu.sh.flm-npu

@@ -4,7 +4,7 @@
 # Runs `flm serve <tag>` on the XDNA2 NPU (50 TOPS, Dankclaw). The NPU is a
 # single-lane device: generations serialize in FIFO order, so this is a
 # background/triage endpoint, not an interactive multi-user chat. The NPU
-# draws from the unified RAM pool shared with frank-large (the iGPU
+# draws from the unified RAM pool shared with frank-dragoon (the iGPU
 # llama.cpp service); see serverAppConfigs-docs/LLM/frank-npu.md
 # for the memory budget and the model-selection tradeoff.
 #