feat: bootstrap walking skeleton

src/content/definitions.ts

@@ -0,0 +1,17 @@
+/**
+ * Walking-skeleton content: one resource, one timed action.
+ *
+ * M1 expands this into the real resource/action set and the story graph. Kept as
+ * plain data so it stays diffable and authorable without touching engine code.
+ */
+
+export const resourceDefs = [{ id: 'gold', name: 'Gold', startAmount: 0 }];
+
+export const actionDefs = [
+  {
+    id: 'forage',
+    name: 'Forage for coin',
+    durationMs: 3000,
+    yields: { resourceId: 'gold', amount: 1 },
+  },
+];