feat(rust): event NPCs named on the map, and a Place NPCs step's progress line (runicnpc stage 8)

- rust.npc.place's progress() (MODULE_API 1.12.0, D304). It reports the
  step's NPCs still standing, by its key, of how many it placed, with
  the profile's label: "Bandit: 2 of 3 left". A boss step is its
  health, "Walk Juggernaut: 59%", and a boss's adds are not counted.
  The data comes from the map's live answer, so it costs the game no
  extra ask. A reader who may not see the map's events layer gets no
  line.
- The map (D302, D303):
  - an NPC's tooltip is its name and its event's title, read from
    core's public calendar, which lists only announced events;
  - a boss is bigger and in its own colour, and an add says so;
  - a boss outside any event is in the world layer;
  - a boss's health is removed from what a viewer is sent.
- The world layer's visibility hint mentions those bosses.

coreApi stays ^1.11.0: an older core ignores the optional member, and
the action works without a progress line.

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

server/model/map/map.model.js

@@ -301,6 +301,13 @@ async function mateIdsFor(serverId, acc) {
   return { own, mates: new Set(clan.filter((id) => !own.has(id))) }
 }
 
+/** An events row without the health a boss's carries. */
+function withoutHealth(row) {
+  if (!row || typeof row !== 'object' || !('health' in row)) return row
+  const { health, ...rest } = row
+  return rest
+}
+
 /**
  * One live answer, cut down to what one viewer may see. **Pure**, and the
  * security boundary in one function: a layer the viewer may not see is not in
@@ -315,7 +322,9 @@ function project(live, acc, ids = { own: new Set(), mates: new Set() }) {
   const out = { mapKey: live.mapKey || null, t: live.t || null }
 
   if (acc.layers.world.visible) out.world = Array.isArray(live.world) ? live.world : []
-  if (acc.layers.events.visible) out.events = Array.isArray(live.events) ? live.events : []
+  // A boss's health rides on the wire for the event page's progress line, and the
+  // map does not show it (runicnpc D303), so it is not in what a viewer is sent.
+  if (acc.layers.events.visible) out.events = Array.isArray(live.events) ? live.events.map(withoutHealth) : []
   if (acc.layers.players.visible) {
     out.players = Array.isArray(live.players) ? live.players : []
     if (live.playersTruncated) out.playersTruncated = true