feat(bridge): TruePVE in a zone on protocol 14 (PLAN_REDESIGNS §14.3.2)

Stage 3 of the §14.3 integration plan (D362, D368), specified in docs
rust-link/PROTOCOL.md §20.6.

- world.zone's optional truePve: {"exclude": true} or {"ruleset": "name"},
  exactly one, the name 1-64 characters. Malformed is `malformed`; TruePVE
  not loaded is `truepve-missing`.
- All or nothing: the zone (and its dome) is made, then AddOrUpdateMapping.
  A false erases both and answers `truepve-ruleset` with the name (or
  `refused` for exclude).
- The registry entry remembers its mapping, and every path that erases one
  of our zones calls RemoveMapping first: the deadline, world.revert, a zone
  world.owned finds gone, a new wipe. While TruePVE is away the id waits in
  data/RunicGateway/truepve.json, flushed at OnPluginLoaded(TruePVE) and at
  the bridge's own load.
- hello's integrations.truePve { loaded, version }, sent again when TruePVE
  loads or unloads. rg.world prints truePve= and truePveLeftover=.

Compiled and loaded on both rigs (Rust 25902425, Oxide 2.0.7830, Carbon
2.0.262, TruePVE 2.4.6).

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

overlay/oxide/plugins/RunicGateway.cs

@@ -5169,8 +5169,9 @@ namespace Oxide.Plugins
             // Hello carries ZoneManager's flag list and both helpers' states, so a change to any
             // of the four is said again rather than waiting for the next connect (§3.1, §3.2).
             // Economics too: hello carries its starting balance, which the richest column needs;
-            // and Backpacks, whose sizes are what a Bigger backpack step offers.
-            if (IsZonePlugin(plugin) || IsRunicNpc(plugin) || IsEconomics(plugin) || IsBackpacks(plugin))
+            // and Backpacks, whose sizes are what a Bigger backpack step offers; and TruePVE, which a
+            // zone step's PvP rules are refused without (§14.3.2).
+            if (IsZonePlugin(plugin) || IsRunicNpc(plugin) || IsEconomics(plugin) || IsBackpacks(plugin) || IsTruePve(plugin))
                 NextTick(ResendHello);
 
             // Economics loaded after players connected: what they hold now is not otherwise known
@@ -5200,7 +5201,7 @@ namespace Oxide.Plugins
             if (plugin != null && plugin.Name == "BetterChat")
                 _titlesRegistered = false;
 
-            if (IsZonePlugin(plugin) || IsRunicNpc(plugin) || IsEconomics(plugin) || IsBackpacks(plugin))
+            if (IsZonePlugin(plugin) || IsRunicNpc(plugin) || IsEconomics(plugin) || IsBackpacks(plugin) || IsTruePve(plugin))
                 NextTick(ResendHello);
 
             ConfigWriteJob job = _configJob;