Update Dockerfile

Dockerfile

@@ -1,8 +1,8 @@
+
 # ── Stage 1: Builder ─────────────────────────────────────────
 FROM ubuntu:22.04 AS builder
 
-# Install C++ build tools and CMake
-# Install C++ build tools and CMake
+# Install C++ build tools, CMake, Boost, OpenSSL, and nlohmann_json
 RUN apt-get update && apt-get install -y \
     build-essential \
     cmake \
@@ -10,6 +10,7 @@ RUN apt-get update && apt-get install -y \
     libboost-coroutine-dev \
     libboost-context-dev \
     libssl-dev \
+    nlohmann-json3-dev \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app