feat: 初始化 git-air AI 代码评审 CLI 工具

新增多模型 LLM 客户端、Git diff 提取与过滤、配置管理及 pre-commit 钩子支持。

internal/ui/render.go

@@ -0,0 +1,66 @@
+package ui
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+// ANSI 终端颜色常量
+const (
+	colorReset  = "\033[0m"
+	colorRed    = "\033[1;31m"
+	colorGreen  = "\033[1;32m"
+	colorYellow = "\033[1;33m"
+	colorBlue   = "\033[1;34m"
+	colorCyan   = "\033[1;36m"
+	colorGray   = "\033[0;90m"
+	colorBold   = "\033[1m"
+)
+
+// PrintBanner 打印开场横幅与当前评审状态
+func PrintBanner(provider, model string) {
+	fmt.Printf("%s[git-air]%s 代码评审中... %s(Engine: %s / %s)%s\n", colorCyan, colorReset, colorGray, provider, model, colorReset)
+	fmt.Println(colorGray + strings.Repeat("─", 65) + colorReset)
+}
+
+// PrintFooter 打印结束分界线
+func PrintFooter() {
+	fmt.Println()
+	fmt.Println(colorGray + strings.Repeat("─", 65) + colorReset)
+}
+
+// PrintError 打印错误信息
+func PrintError(format string, a ...interface{}) {
+	msg := fmt.Sprintf(format, a...)
+	fmt.Fprintf(os.Stderr, "%s[ERROR]%s %s\n", colorRed, colorReset, msg)
+}
+
+// PrintSuccess 打印成功信息
+func PrintSuccess(format string, a ...interface{}) {
+	msg := fmt.Sprintf(format, a...)
+	fmt.Printf("%s[SUCCESS]%s %s\n", colorGreen, colorReset, msg)
+}
+
+// StreamPrinter 带有标签高亮的流式输出打印器
+type StreamPrinter struct{}
+
+func NewStreamPrinter() *StreamPrinter {
+	return &StreamPrinter{}
+}
+
+// PrintChunk 逐字流式输出，遇到关键标签进行颜色增强
+func (p *StreamPrinter) PrintChunk(chunk string) {
+	// 对关键标签进行颜色替换
+	highlighted := chunk
+	highlighted = strings.ReplaceAll(highlighted, "[BLOCKER]", colorRed+"[BLOCKER]"+colorReset)
+	highlighted = strings.ReplaceAll(highlighted, "[CRITICAL]", colorRed+"[CRITICAL]"+colorReset)
+	highlighted = strings.ReplaceAll(highlighted, "[WARNING]", colorYellow+"[WARNING]"+colorReset)
+	highlighted = strings.ReplaceAll(highlighted, "[WARN]", colorYellow+"[WARN]"+colorReset)
+	highlighted = strings.ReplaceAll(highlighted, "[SUGGESTION]", colorBlue+"[SUGGESTION]"+colorReset)
+	highlighted = strings.ReplaceAll(highlighted, "[PASS]", colorGreen+"[PASS]"+colorReset)
+	highlighted = strings.ReplaceAll(highlighted, "[LGTM]", colorGreen+"[LGTM]"+colorReset)
+	highlighted = strings.ReplaceAll(highlighted, "[REJECT]", colorRed+"[REJECT]"+colorReset)
+
+	fmt.Print(highlighted)
+}