feat(api): port Fase 5 REST API — Bun.serve router + JWT middleware + auth/session/conversation/chat handlers + composition root

apps/interfaces/api/src/index.ts

@@ -0,0 +1,10 @@
+/**
+ * Zesdex REST API interface package.
+ * Mirrors `apps/interfaces/api/`.
+ */
+export * from "./dto.ts";
+export { ApiError, HTTP_STATUS } from "./error.ts";
+export { RateLimiter, newApiState } from "./state.ts";
+export type { ApiState } from "./state.ts";
+export { authenticateRequest } from "./middleware/auth.ts";
+export { startApiServer } from "./server.ts";