feat: TUI帮助功能与样式改进

- 添加帮助信息栏 (bubbles help组件, Ctrl+H切换)
- 翻译卡片样式优化 (Padding空隙、上方内边距)
- 扩展build.sh支持跨平台编译
- release.yaml使用build.sh构建

build.sh

@@ -1,3 +1,94 @@
 #!/bin/bash
-VERSION=$(git describe --tags --always --dirty 2>/dev/null || echo "")
-go build -ldflags "-X github.com/titor/fanyi/internal/logo.version=${VERSION}" -o yoyo ./cmd/yoyo
+set -e
+
+cd "$(dirname "$0")"
+
+VERSION=$(git describe --tags --always --dirty 2>/dev/null || echo "dev")
+
+show_help() {
+    echo "YOYO 编译脚本"
+    echo ""
+    echo "用法:"
+    echo "  ./build.sh              构建当前平台，输出 yoyo"
+    echo "  ./build.sh <平台>       交叉编译指定平台"
+    echo "  ./build.sh -h           显示帮助"
+    echo ""
+    echo "参数:"
+    echo "  -h                      显示帮助信息"
+    echo "  -o <文件名>             指定输出文件名"
+    echo ""
+    echo "支持的平台:"
+    echo "  linux/amd64, linux/arm64"
+    echo "  darwin/amd64, darwin/arm64"
+    echo "  windows/amd64"
+    echo ""
+    echo "示例:"
+    echo "  ./build.sh                          # 构建当前平台"
+    echo "  ./build.sh linux/amd64              # 编译 Linux x64"
+    echo "  ./build.sh darwin/arm64             # 编译 macOS ARM"
+    echo "  ./build.sh windows/amd64 -o app.exe # 编译 Windows x64，自定义输出名"
+    echo ""
+    echo "输出文件名格式: yoo-<os>-<arch>[.exe]"
+    echo "  yoo-linux-amd64"
+    echo "  yoo-darwin-arm64"
+    echo "  yoo-windows-amd64.exe"
+}
+
+OUTPUT_NAME="yoyo"
+
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        -h|--help)
+            show_help
+            exit 0
+            ;;
+        -o|--output)
+            OUTPUT_NAME="$2"
+            shift 2
+            ;;
+        linux/amd64)
+            GOOS=linux GOARCH=amd64
+            PLATFORM="linux-amd64"
+            shift
+            ;;
+        linux/arm64)
+            GOOS=linux GOARCH=arm64
+            PLATFORM="linux-arm64"
+            shift
+            ;;
+        darwin/amd64)
+            GOOS=darwin GOARCH=amd64
+            PLATFORM="darwin-amd64"
+            shift
+            ;;
+        darwin/arm64)
+            GOOS=darwin GOARCH=arm64
+            PLATFORM="darwin-arm64"
+            shift
+            ;;
+        windows/amd64)
+            GOOS=windows GOARCH=amd64
+            PLATFORM="windows-amd64"
+            if [[ "$OUTPUT_NAME" == "yoyo" ]]; then
+                OUTPUT_NAME="yoo-windows-amd64.exe"
+            fi
+            shift
+            ;;
+        *)
+            echo "未知平台: $1"
+            show_help
+            exit 1
+            ;;
+    esac
+done
+
+echo "Building yoyo version: $VERSION"
+
+if [ -n "$GOOS" ]; then
+    echo "Target: $PLATFORM"
+    go build -ldflags "-s -w -X github.com/titor/fanyi/internal/logo.version=${VERSION}" -o "$OUTPUT_NAME" ./cmd/yoyo
+else
+    go build -ldflags "-s -w -X github.com/titor/fanyi/internal/logo.version=${VERSION}" -o "$OUTPUT_NAME" ./cmd/yoyo
+fi
+
+echo "Build complete: ./$OUTPUT_NAME"