Add Tailwind + shadcn UI primitives; add React Query + Orval client

frontend/orval.config.ts

@@ -0,0 +1,26 @@
+import { defineConfig } from "orval";
+
+export default defineConfig({
+  api: {
+    input: {
+      target: "http://127.0.0.1:8000/openapi.json",
+    },
+    output: {
+      mode: "tags-split",
+      target: "src/api/generated/index.ts",
+      schemas: "src/api/generated/model",
+      client: "fetch",
+      prettier: true,
+      override: {
+        mutator: {
+          path: "src/api/mutator.ts",
+          name: "customFetch",
+        },
+        query: {
+          useQuery: true,
+          useMutation: true,
+        },
+      },
+    },
+  },
+});