fix: install cmake in wzp Docker build (opus codec dependency)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

warzone/deploy/docker/Dockerfile.wzp

@@ -2,6 +2,8 @@
 # Build context: featherChat repo root (../../..)
 FROM rust:latest AS builder
 
+RUN apt-get update && apt-get install -y cmake pkg-config libssl-dev && rm -rf /var/lib/apt/lists/*
+
 WORKDIR /build
 
 # Copy warzone-phone workspace