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.

serverAppConfigs-docs/Research/Service Research Brief.md

@@ -1,6 +1,6 @@
 ---
 type: reference
-description: "Consolidated research from the `frank-secondary` research subagents (2026-08-14) plus the pi agent knowledge base."
+description: "Consolidated research from the `frank-zealot` research subagents (2026-08-14) plus the pi agent knowledge base."
 tags:
   - research
 timestamp: 2026-09-03
@@ -8,7 +8,7 @@ timestamp: 2026-09-03
 
 # Service Research Brief
 
-Consolidated research from the `frank-secondary` research subagents (2026-08-14) plus the pi agent knowledge base. This is the source material behind the per-service docs pages.
+Consolidated research from the `frank-zealot` research subagents (2026-08-14) plus the pi agent knowledge base. This is the source material behind the per-service docs pages.
 
 ## Method