feat(rust): Dynamic PVP's zones on the feed and the map (PLAN_REDESIGNS §14.3.3)

Stage 4 of the §14.3 integration plan, on protocol 14 (docs
rust-link/PROTOCOL.md §20.7).

- pvp.zone.created is a public kind, pvp.zone.deleted a staff kind. Each row
  is read per viewer by the new dynamicPvp.js: grid for everyone, the event's
  name only for Dynamic PVP's own vanilla events, position and zone id for
  staff only.
- The feed's world filter carries the opening: "A PvP zone opened around the
  downed patrol helicopter · G7 · for 10 min". It names nobody.
- The map gains a fifth layer, `pvp` (PvP zones), public by default with its
  own audience in Admin → Rust visibility, drawn as a red ring with its
  event's name.
- Server settings' plugin line names Dynamic PVP; the swagger schemas and
  route descriptions carry the layer and the integration (fragment
  regenerated); ci/bundle.json ships dynamicPvp.js; README lists it.

Tests: server 611/611 (dynamicPvp.test.js new, catalogue and map extended)
and every check; client 89/89 (feed and map tooltip), build and externals.

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

client/src/lib/mapEvents.js

@@ -42,3 +42,26 @@ export function eventTip(row, titles) {
 export function isBoss(row) {
   return Boolean(row && (row.boss || row.kind === 'boss'))
 }
+
+// ── Dynamic PVP's zones (protocol 14, PLAN_REDESIGNS §14.3.3) ──────────────
+
+/** Dynamic PVP's own events as the map names them; a monument's or an operator's is shown as written. */
+export const PVP_NAMES = Object.freeze({
+  Helicopter: 'Patrol helicopter',
+  Bradley: 'Bradley APC',
+  Satellite: 'Satellite crash',
+  TimedSupply: 'Airdrop',
+  SupplySignal: 'Signalled airdrop',
+  CargoShip: 'Cargo ship',
+  HackableCrate: 'Locked crate',
+  ExcavatorIgnition: 'Giant Excavator',
+  GhostShip: 'Ghost ship',
+  DeepSeaIsland: 'Deep Sea island',
+  IslandCannon: 'Island cannon',
+})
+
+/** A Dynamic PVP ring's tooltip: "PvP zone · Patrol helicopter". */
+export function pvpTip(z) {
+  const name = PVP_NAMES[z.event] || z.event
+  return name ? `PvP zone · ${name}` : 'PvP zone'
+}