feat(rust): NPC profiles and placements pages, the profile leaderboard (runicnpc stage 4)

Admin: Rust NPC profiles (the form RunicNPC reads, per server, shared or
fleet, each server's push state and refusals, replaced profiles with
Restore) and Rust NPC placements (the live map: click to place, pins for
every placement; edit, rename, respawn, remove). The live map takes a pick
handler and pins, unchanged for the public page.

Public: the leaderboard ranks by a profile's kills (D250), and opening a
row shows that player's kills by profile (D252); the killfeed names a
RunicNPC NPC by its own name. Player: your own kills by profile. Titles: a
rule on a profile's kills picks the profile. npcs.test.js covers the
profile checks, adoption, the push, the picker and verb, the triggers, kill
crediting, titles and placements (481 server tests).

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

client/src/icons.jsx

@@ -124,3 +124,25 @@ export const IconZone = () => (
     <circle cx="12" cy="12" r="3" />
   </Icon>
 )
+
+/**
+ * A figure — the admin sidebar's row for RunicNPC's profiles (runicnpc stage 4).
+ * A head and shoulders: the page is about who the NPCs are.
+ */
+export const IconNpc = () => (
+  <Icon>
+    <circle cx="12" cy="8" r="3.5" />
+    <path d="M5 20c0-3.9 3.1-7 7-7s7 3.1 7 7" />
+  </Icon>
+)
+
+/**
+ * A figure on a spot — the admin sidebar's row for NPC placements: where they stand.
+ */
+export const IconPlacement = () => (
+  <Icon>
+    <circle cx="12" cy="6" r="2.5" />
+    <path d="M8 15c0-2.2 1.8-4 4-4s4 1.8 4 4" />
+    <ellipse cx="12" cy="19" rx="7" ry="2" />
+  </Icon>
+)