Fix server Docker builds for current Rust toolchain and CUDA feature wiring

mohawk-server/Cargo.toml

@@ -5,6 +5,9 @@ edition = "2021"
 description = "Production-ready LLM Inference Engine with GGUF support and OpenAI-compatible API"
 license = "MIT"
 
+[features]
+cuda = ["llama-cpp-2/cuda"]
+
 [dependencies]
 # Web Framework
 axum = { version = "0.7", features = ["macros"] }

mohawk-server/Dockerfile

@@ -1,5 +1,5 @@
 # Mohawk Inference Engine - CPU Version
-FROM rust:1.75-slim as builder
+FROM rust:1.87-slim AS builder
 
 WORKDIR /app
 
@@ -12,6 +12,9 @@ RUN apt-get update && apt-get install -y \
     pkg-config \
     && rm -rf /var/lib/apt/lists/*
 
+ENV CC=clang
+ENV CXX=clang++
+
 # Copy source code
 COPY Cargo.toml Cargo.lock* ./
 COPY src/ ./src/

mohawk-server/Dockerfile.cuda

@@ -1,12 +1,12 @@
 # Mohawk Inference Engine - CUDA Version
-FROM nvidia/cuda:12.1.0-devel-ubuntu22.04 as builder
+FROM nvidia/cuda:12.1.0-devel-ubuntu22.04 AS builder
 
 WORKDIR /app
 
 # Install build dependencies
 RUN apt-get update && apt-get install -y \
-    rustc \
-    cargo \
+    ca-certificates \
+    curl \
     cmake \
     git \
     clang \
@@ -15,6 +15,12 @@ RUN apt-get update && apt-get install -y \
     protobuf-compiler \
     && rm -rf /var/lib/apt/lists/*
 
+RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain 1.87.0 --profile minimal
+
+ENV PATH="/root/.cargo/bin:${PATH}"
+ENV CC=clang
+ENV CXX=clang++
+
 # Copy source code
 COPY Cargo.toml Cargo.lock* ./
 COPY src/ ./src/