add currency, outfits

apps/econ/migrations/0002_outfit.sql

@@ -0,0 +1,11 @@
+-- Saved outfits, owned by the `econ` worker. One row per (account, slot): the client
+-- posts an outfit with a `Slot` to /api/avatar/v3/saved/set, and re-saving that slot
+-- overwrites it. The outfit is the client's own JSON payload, stored opaquely — we
+-- never query inside it. Kept in sync with OUTFIT_SCHEMA_DDL in src/outfit-db.ts.
+
+CREATE TABLE IF NOT EXISTS outfit (
+  account_id INTEGER NOT NULL,
+  set_id INTEGER NOT NULL,
+  avatar TEXT NOT NULL,
+  PRIMARY KEY (account_id, set_id)
+  );