Implement RFID tag dump PWA with REST API, auth, and CI

Add Next.js app with SQLite/Drizzle storage for sites and LF/HF tag
dumps, multi-user Auth.js (credentials + optional OIDC), personal API
tokens in Settings, versioned /api/v1 for UI and future CLI use,
MCT/Proxmark/JSON import-export, PWA offline shell, Vitest tests, and
GitHub Actions CI.

src/app/api/v1/me/route.ts

@@ -0,0 +1,23 @@
+import { NextRequest } from "next/server";
+import { requireApiUser, jsonError, jsonOk } from "@/lib/api/auth-guard";
+import { getDb } from "@/db/client";
+import { users } from "@/db/schema";
+import { eq } from "drizzle-orm";
+import { isOidcConfigured } from "@/lib/auth/auth";
+
+export async function GET(request: NextRequest) {
+  const userOrRes = await requireApiUser(request);
+  if (userOrRes instanceof Response) return userOrRes;
+
+  const db = getDb();
+  const row = db.select().from(users).where(eq(users.id, userOrRes.id)).get();
+  if (!row) return jsonError(404, "NOT_FOUND", "User not found");
+
+  return jsonOk({
+    id: row.id,
+    email: row.email,
+    name: row.name,
+    createdAt: row.createdAt.toISOString(),
+    oidcAvailable: isOidcConfigured(),
+  });
+}