✨ Migrate to latest openapi-ts (fastapi#1430)

Author: patrick91

frontend/openapi-ts.config.ts

@@ -0,0 +1,15 @@
+import { defineConfig } from "@hey-api/openapi-ts"
+
+export default defineConfig({
+  client: "legacy/axios",
+  input: "./openapi.json",
+  output: "./src/client",
+  // exportSchemas: true,
+  plugins: [
+    {
+      name: "@hey-api/sdk",
+      // NOTE: this doesn't allow tree-shaking
+      asClass: true,
+    },
+  ],
+})