添加构建脚本

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

examples/build.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+set -e
+
+echo "Building goffmpeg examples..."
+
+cd "$(dirname "$0")"
+
+# Build simple-transcode example
+echo "Building simple-transcode..."
+go build -o bin/simple-transcode ./simple-transcode
+
+echo ""
+echo "Build complete!"
+echo "Run with: ./bin/simple-transcode <input> <output>"