feat(bridge): Economics on protocol 14 — pay, balances, adjust (PLAN_REDESIGNS §11.2)

Wulf's Economics as an optional integration (D199), as §11.2.2 designs it:

- hello/status `integrations.economics` adds startingBalance and wipesWithMap,
  read from Economics.json (cached by mtime) because its API has neither.
- `economics.pay`: coins from an event step, kept once paid (D335). One main-
  thread call for the list; each deposit measured as after - before, since
  Deposit answers true while rounding and clamping (`at-limit` otherwise).
  The key and its reply are kept in data/RunicGateway/payments.json for seven
  days, so a retry answers `repeat: true` and pays nobody. The optional
  message ({amount} = what landed) is told now if awake, else on wake.
- `economics.balances` (bounded by PermMaxOps) and staff `economics.adjust`
  (deposit / withdraw / set; a withdrawal above the balance is refused
  `insufficient` with the balance).
- `player.tally` gains `balance`, a value: read at connect (D336) and from
  OnEconomicsBalanceUpdated, offline players included.
- `economics.wiped` from OnEconomicsDataWiped(IPlayer), with `newSave`.

Amounts are boxed as double and only Steam ids are sent, per the spike.
Compiled on both rigs (Oxide 2.0.7826, Carbon 2.0.262), then restored.

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

overlay.toml

@@ -35,7 +35,9 @@
 # and the first player walk's fixes (PROTOCOL.md §19) — opened by a configuration
 # save that answers at once and reports its reload as a `config.outcome` frame,
 # and the step editor (PROTOCOL.md §20): `kits.uses`, and the one-time reward
-# messages a `perm.sync` carries as `notices`.
+# messages a `perm.sync` carries as `notices`; and Economics (PROTOCOL.md §20.3):
+# `economics.pay`, `economics.balances`, `economics.adjust`, the tally's
+# `balance` and the `economics.wiped` event.
 protocol = 14
 
 # ── Oxide compatibility ──────────────────────────────────────────────────────