backend-infra-engineer: Post v0.3.9-hotfix7 snapshot (build cleanup)

scripts/agent_build.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+# scripts/agent_build.sh
+# Agent build helper (shared build directory by default; override via YAZE_BUILD_DIR).
+# Usage: ./scripts/agent_build.sh [target]
+# Default target is "yaze" if not specified.
+
+set -e
+
+# Detect OS
+OS="$(uname -s)"
+case "${OS}" in
+    Linux*)     PRESET="lin-ai";;
+    Darwin*)    PRESET="mac-ai";;
+    CYGWIN*)    PRESET="win-ai";;
+    MINGW*)     PRESET="win-ai";;
+    *)          echo "Unknown OS: ${OS}"; exit 1;;
+esac
+
+BUILD_DIR="${YAZE_BUILD_DIR:-build}"
+TARGET="${1:-yaze}"
+
+echo "=================================================="
+echo "🤖 Agent Build System"
+echo "Platform: ${OS}"
+echo "Preset:   ${PRESET}"
+echo "Build Dir: ${BUILD_DIR}"
+echo "Target:   ${TARGET}"
+echo "=================================================="
+
+# Ensure we are in the project root
+if [ ! -f "CMakePresets.json" ]; then
+    echo "❌ Error: CMakePresets.json not found. Must run from project root."
+    exit 1
+fi
+
+# Configure if needed (using the preset which now enforces binaryDir)
+if [ ! -d "${BUILD_DIR}" ]; then
+    echo "🔧 Configuring ${PRESET}..."
+    cmake --preset "${PRESET}"
+fi
+
+# Build
+echo "🔨 Building target: ${TARGET}..."
+cmake --build "${BUILD_DIR}" --target "${TARGET}"
+
+echo "✅ Build complete."