Create monorepo from known-good production state

app/components/portal/ProjectsSwitcher.tsx

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+// components/portal/ProjectsSwitcher.tsx
+"use client";
+
+import { useRouter, useSearchParams } from "next/navigation";
+import dynamic from "next/dynamic";
+import { cn } from "@/lib/utils";
+
+// Canonical viewer page; use dynamic in a client component
+const ProjectsView = dynamic(() => import("@/app/projects/page"), { ssr: false });
+
+const TABS = [
+    { key: "list", label: "Projects" },
+{ key: "add",  label: "Add Project" },
+];
+
+function Panel({ tab }: { tab: string }) {
+    switch (tab) {
+        case "list":
+            return (
+                <div className="rounded-md border p-4">
+                <ProjectsView />
+                </div>
+            );
+        case "add":
+            return (
+                <div className="rounded-md border p-4 space-y-3">
+                <h3 className="font-semibold">Add Project</h3>
+                <div className="text-sm opacity-70">
+                Project submission form will be embedded here. We’ll wire to an authenticated endpoint (e.g. <code>POST /api/my/projects</code>) and auto-assign owner.
+                </div>
+                <ul className="text-sm list-disc pl-5 opacity-70">
+                <li>Fields: name (required), description, attachments, etc.</li>
+                <li>Server derives <code>owner</code> from bearer (<code>/users/me</code>)</li>
+                <li>On success: toast + navigate back to list</li>
+                </ul>
+                </div>
+            );
+        default:
+            return null;
+    }
+}
+
+export default function ProjectsSwitcher() {
+    const router = useRouter();
+    const sp = useSearchParams();
+    const active = sp.get("t") || "list";
+
+    function setTab(nextKey: string) {
+        const q = new URLSearchParams(sp.toString());
+        q.set("t", nextKey);
+        router.replace(`/portal/projects?${q.toString()}`, { scroll: false });
+    }
+
+    return (
+        <div>
+        <div className="mb-4 flex flex-wrap items-center gap-2">
+        {TABS.map(({ key, label }) => (
+            <button
+            key={key}
+            onClick={() => setTab(key)}
+            className={cn(
+                "rounded-md border px-3 py-1.5 text-sm transition",
+                active === key ? "bg-primary text-primary-foreground" : "hover:bg-muted"
+            )}
+            >
+            {label}
+            </button>
+        ))}
+        </div>
+
+        <Panel tab={active} />
+        </div>
+    );
+}