feat(rust): RunicNPC profiles, their push and adoption, per-profile kills (runicnpc stage 4, WIP)

Schema for site NPC profiles (per server, shared or fleet), the per-server
push record, and kills by profile. The push adopts a server's own profiles
before its first push (D244), keeping one whose name a site profile already
has as replaced (D251). The tally's npcProfileKills are stored per profile
and credited to the site profile pushed under that name (D247).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY

server/boot.js

@@ -48,6 +48,7 @@ const eventsDb = require('./model/events/events.db')
 const eventWorld = require('./eventWorld')
 const ingest = require('./ingest')
 const mapImages = require('./mapImages')
+const npcSync = require('./npcSync')
 const permSync = require('./permSync')
 const permissionsDb = require('./model/permissions/permissions.db')
 const titleSync = require('./titleSync')
@@ -275,6 +276,9 @@ async function onBoot() {
   permSync.start()
   // The chat titles have a loop of their own for the same reason (phase 17).
   titleSync.start()
+  // So do the NPC profiles, adopted and pushed to each server's RunicNPC
+  // (runicnpc stage 4, D244): a first push reads a server before it writes it.
+  npcSync.start()
   refreshTimer = setInterval(refresh, REFRESH_MS)
   ingestTimer = setInterval(ingestAll, INGEST_MS)
   pruneTimer = setInterval(prune, PRUNE_MS)
@@ -300,6 +304,7 @@ async function onBoot() {
 async function onShutdown() {
   permSync.stop()
   titleSync.stop()
+  npcSync.stop()
 
   for (const timer of [refreshTimer, ingestTimer, pruneTimer, sweepTimer]) {
     if (timer) clearInterval(timer)