imgui-frontend-engineer: add build helper scripts

scripts/build-ios.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+PRESET="${1:-ios-debug}"
+
+cmake --preset "${PRESET}"
+cmake --build --preset "${PRESET}"
+
+if ! command -v xcodegen >/dev/null 2>&1; then
+  echo "xcodegen not found. Install with: brew install xcodegen" >&2
+  exit 1
+fi
+
+(cd "${ROOT_DIR}/src/ios" && xcodegen)
+
+echo "Generated Xcode project at ${ROOT_DIR}/src/ios/yaze_ios.xcodeproj"